First, the terminology of locks Gabion Box,Gabion Fencing,Galvanized Wire Mesh Mesh Fence,Temporary Fence,Gabion Box Co., Ltd. , http://www.nsfence.com
Technical Terms of locks
UDC 683.3:001.4 GB 8383-87
This standard applies to the name and application of various types of locks and main component terminology such as marbles, blades, and magnetic code structures.
1, lock structure mechanism of lock
1.1 Pin Tumbler mechanism
A set of basic cylindrical parts, the structure of the pinball structure that acts to release or release the movement of the lock cylinder.
1.2 blade structure flat tumbler mechanism
A set of parts in the shape of a sheet is called a blade structure for engaging or releasing the movement of the lock cylinder.
1.3 magnetic mechanism
A part made of a magnetic material is used for locking, and its structure is called a magnetic structure.
1.4 crypto structure
A structure consisting of digital codes is called a cryptographic structure.
1.5 electronic coding mechanism
The electronic structure of the structure is encoded by an electronic principle.
2, lock classification classification of Locks
2.1 padlock padlock
Lock the lock of the object (body) in a hanging form.
2.1.1 Straight open padlock bottom opening padlock
After the key is inserted from the underside of the lock, the open lock is rotated.
2.1.2 horizontal opening padlock
After the key is inserted from the side of the lock, the open lock is rotated.
2.1.3 top open padlock pushing opening padlock
After the key is inserted, the lock is opened forward
2.1.4 double open padlock double key padlock
A lock that can be opened with two different keys.
2.2 building door lock in door lock in building
Suitable for locks on the doors of building buildings.
2.2.1 Exterior door lock rim lock
The lock is mounted on the surface of the door.
2.2.1.1 Single tongue single security door lock single bolt single security door lock
The single-tongue structure has a single-safety lock.
2.2.1.2 Single tongue double safety door lock single bolt double security door lock
The single tongue structure has a double-insulated lock.
2.2.1.3 Single bolt triple security door lock
The single tongue structure has a three-function lock.
2.2.1.4 double tongue triple security door lock double bolt triple security door lock
The double tongue structure has a lock with three insurance functions.
2.2.1.5 double tongue double head triple safety door lock double cylinder double bolt triple security door lock
The double-tongue, double-lock structure has a three-safety lock.
2.2.1.6 double tongue multiple bolt triple security door lock
The multi-tongue double lock structure has three safety door locks.
2.2.1.7 sliding door lock
Generally, the locking tongue is in the shape of a hook for holding the lock of the door frame.
2.2.2 mortise door lock mortice door lock
The lock body is inserted into the door sill and the accessory is assembled with a lock on the door.
2.2.2.1 mortice sliding door lock
Generally, the locking tongue is hook-shaped. The lock used to hold the door frame.
2.2.2.2 Single tongue mortise door lock single dead bolt mortice door lock
The locking tongue is a mortise lock for a single tongue.
2.2.2.3 Single oblique tongue mortise lock single latch bolt mortice door lock
The locking tongue is a mortise lock for a single oblique tongue.
2.2.2.4 Single slanted tongue button mortise door lock single latch bolt mortice door lock with press button
The locking tongue is a single oblique tongue with a mortise lock on the panel attached to the button.
2.2.2.5 double tongue mortice door lock double bolt mortice door lock
A mortise lock with two locking tongues.
2.2.2.6 Double tongue pressing mortise door lock double bolt pressing mortice door lock
A double-tongue mortise lock with a rolling mechanism that opens the slanting tongue.
2.2.3 ball lock with door lock with knobs
The lock body is inserted into the door lock, and the lock and the insurance mechanism are installed in the lock of the ball handle.
2.2.3.1 Gate lock
The outer handle is equipped with a lock, the inner handle is equipped with a knob, and the lock has a double lock tongue structure.
2.2.3.2 room door lock room door lock
The outer handle is equipped with a lock, and the inner handle is equipped with a knob and a lock with a safety column.
2.2.3.3 Closet door lock cupboard lock
The outer handle is equipped with a lock and has no internal lock.
2.2.3.4 Bathroom door lock bathroom lock
The outer handle hole is opened with a key, and the inner handle is equipped with a lock of the insurance mechanism.
2.2.3.5 toilet door lock lavatory lock
The outer handle is equipped with a sign, which is opened with a key, and the inner handle is equipped with a knob lock.
2.2.3.6 Windproof door lock latch
There are internal and external handles, suitable for the lock of the windproof door.
2.3 furniture lock furniture lock
Suitable for locks on furniture.
2.3.1 drawer lock drawer lock
Applicable to the lock on the drawer, the direction of the lock cylinder groove is consistent with the direction of movement of the bolt.
2.3.1.1 Square tongue drawer lock drawer lock with dead bolt
The locking tongue has a flat shape, and the locks are operated by the key when opening and closing.
2.3.1.2 slanted tongue drawer lock drawer lock with latch bolt
The locking tongue is beveled to advance the drawer, and the locking tongue can lock itself.
2.3.1.3 crab claw drawer lock hook-bolt drawer lock
The lock tongue has a lock on the jaws.
2.3.2 Cabinet lock cabinet lock
Applicable to the lock on the cabinet door, the direction of the lock core slot is perpendicular to the direction of movement of the bolt.
2.3.2.1 Glass door lock glass sliding door lock for cabinet
A lock that is applied to a glass sliding door such as a decorative cabinet.
2.3.2.2 left and right cabinet door lock cabinet lock for leftward right ward opening doors
Suitable for locks on the left and right cabinet doors.
2.3.2.3 handle cabinet lock handle cabinet lock
With a handle, the lock is assembled in the handle.
2.3.3 box lock box lock
A lock that fits on the box.
2.3.4 Handbag lock
Suitable for locks on the box.
2.4 bicycle lock bicycle lock
A lock for locking the bicycle wheel.
2.4.1 Crab Clamp Bicycle Lock ring bicycle lock
The lock body is shaped like a crab claw lock.
2.4.1.1 Front open bicycle lock front opening bicycle lock
The key is inserted into the open lock by the front of the lock.
2.4.1.2 side open bicycle lock lateral opening bicycle lock
The key is inserted into the open lock by the side of the lock.
2.4.1.3 rear open bicycle lock rear opening bicycle lock
The key is inserted into the open lock by the back of the lock.
2.4.2 Strip bicycle lock
The lock is shaped like a bar lock.
2.4.2.1 Cable bicycle lock
The lock bar is a cable lock.
2.4.2.2 Chain bicycle lock chain bicycle lock
The lock bar uses a chain lock.
2.4.3 bicycle plug-in lock
Lock the lock of the wheel in the form of a mortise lock.
3, the main parts of the lock, the common name, term for main paris of lock
3.1 lock cylinder
The parts of the parts such as the lock cylinder have been assembled.
3.1.1 lock body cylinder body
The body of the part such as the lock cylinder is not installed.
3.1.2 lock cylinder plug
It usually has a key groove and can directly transmit the parts of the action given by the key.
3.1.3 key key
It usually has a key groove and a tooth flower for opening and closing the parts of the lock.
3.1.4 round head pin
It is installed in the hole of the lock cylinder and plays a part that changes the function of the tooth.
3.1.5 flat head marble driver
It is installed in the hole of the lock body and plays the part of the lock core under the action of the spring.
3.1.6 Shaped pin deformed pin
It is mounted in the hole of the lock body and acts as a part to prevent foreign matter from opening the lock.
3.1.7 blade flat tumbler
A sheet-like part that makes up the number of different teeth.
3.1.8 spring spring
Name the active parts, such as marble springs and leaf springs.
3.1.9 sealing surface filling plate
Close the hole and groove of the sheet-like part.
3.1.10 ring ring washer
A ring-shaped part that limits the movement of related parts within a certain range.
3.1.11 file washer
A sheet-like part that limits the movement of related parts within a certain range.
3.1.12 lock collar cylinder collar
A ring-shaped part commonly used for decorative and padlocking functions.
3.1.13 pin pin
Named according to its role, such as the bolt.
3.1.14 lock drive strip (piece) spindle
A part that is connected to the lock cylinder and acts as a transmission.
3.2 lock body lock body
The main part of the lock that has been installed.
3.2.1 lock case lock case
A lock housing for assembled components.
3.2.2 lock tongue bolt
Parts that directly lock in the lock are divided into square tongues, oblique tongues, round tongues, hook tongues, etc. (parts or parts) according to their shapes.
3.2.3 bolt puller follower
Parts that directly pull the action of the locking tongue.
3.2.4 lock box (board) box striking plate (striking plate)
A box-like part that holds the bolt when closed.
3.2.5 baffle plate washer
A plate-like part that limits the movement of other parts within a certain range.
3.2.6 handle handle
Generally used to pull the door or manipulate the parts of the mechanism such as the tongue.
3.2.7 Handle lever handle
Turn the part to drive the bolt to open, and the part that can be reset by itself when the external force is removed. According to the shape, they are called a spherical handle, a shuttle handle, a toothed handle, and the like.
3.2.8 knob knob
By twisting the part to drive the bolt to open and close, when the external force is removed, the part cannot be reset by itself.
3.2.9 insurance button stop button
The parts of the fuse are driven by rolling, twisting, and translation.
3.2.10 insurance sheet (column) safety plate
A piece (column)-like part that controls the lock tongue to retract and achieve the purpose of preventing pull-out.
3.2.11 Surface plate
Mounted on both sides of the door, decorative and protective parts.
3.2.12 cover plate
A part that is fastened and covered by a lock.
4, the main part of the lock special name special terms for main parts of lock
4.1 padlock main parts main parts of padlock
4.1.1 Lock beam shackle
A part that locks the object and locks it.
4.1.2 Flower laminate
A sheet-like part that forms a layer lock body.
4.2.1 Lock plate plate
A plate-like part that is specifically used to secure the lock to the door during installation.
4.2.2 lock liner cylinder bush
A tubular part that is padded between the lock head and the lock cover.
4.2.3 safety chain theft-resistant link chain
When in use, connect the lock body and the lock box to play a safety chain.
4.2.4 link plate chain connecting plate
Mounted on the lock case, the plate (box)-like part with the chute is matched with the chain for safety.
4.3 mortise door lock main parts of the main parts of mortice door lock
4.3.1 Front panel
Installed on the side surface of the door, connecting the lock body and guiding the parts of the lock tongue.
4.4 main parts of door lock with knobs
4.4.1 Adjusting ring
A part that adjusts its function according to the thickness of the door.
4.4.2 fixing ring fixing ring
A part that acts as a lock.
4.4.3 lock body case lock body case
The outer casing of the fixed lock body.
4.4.4 Cover cover
A part that protects the decorative effect.
4.4.5 handle tube handle bush
Fix the handle and connect the parts of the lock body.
4.4.6 bracket support rack
A part that supports the bolt.
4.4.7 bolt barrel
A cylindrical part with a part such as a lock tongue.
4.4.8 bolt barrel front plate
Connect the locking tongue to the part that guides the decorative effect.
4.5 furniture lock main parts of the main parts of furniture lock
4.5.1 Case case
Connect the lock head, cooperate with the bottom plate, and install the parts of the parts such as the lock tongue.
4.5.2 base plate
Install the plate-like parts of the cover.
4.5.3 rack rack
Cooperate with the lock body to lock the active part.
4.5.4 spring brake spring loaded stop
It has a flexible function and can hold the rack and lock the active parts.
4.5.5 sleeve cylinder casing
Decorative lock coat.
4.6 Main parts of bicycle lock
4.6.1 Lock ring shackle
A ring-shaped part that acts as a lock.
4.6.2 Lock gate stop
Brake the parts of the lock ring.
4.6.3 Wrench lug
Connect the lock ring by hand to move the part of the lock ring.
4.6.4 mouthpiece mouthpiece
It is sleeved on both ends of the jaws to enhance the riveting strength and guiding of the lock cover.
4.6.5 Lock bar bolt
A part made of a metal material that connects the lock and the plug.
4.6.6 Plug socket
Connect one end of the lock bar and insert the other end into the lock head to close the part
4.6.7 lock casing bolt casing
A part that decorates and protects the action of the lock bar.
5, other main terms other main terms
5.1 lock lock
A general term for various lock categories.
5.2 Guaranteed density secretcy
The lock has a level of reliability for confidentiality.
5.3 firmness
The lock has a degree of resistance to external force damage.
5.4 Flexibility nimbleness
The sensitivity of the lock when it is used.
5.5 Durability
The life of the lock.
5.6 Inter-opening interhancgeability
Use your own key to turn another lock on.
5.7 tooth flower bit
A set of different tooth shapes arranged on the key.
5.8 tooth number number of key changes
The total number of key knives in the batch is different from each other.
5.9 closing force
At the moment when the lock is closed, the lock box (plate) gives the reaction force of the lock tongue into the lock body.
5.10 security device
In the structure of the finger lock, there is a device for preventing the opening of foreign matter.
5.11 The key is naturally inserted into the free insertion of key
The key is inserted into the lock cylinder for smooth guiding performance.
5.12 lock safety device
With the use of locks or other structures, it can achieve the purpose of “internal protectionâ€, “outside protection†and “locking tongue self-protectionâ€, all of which are called lock insurance.
Second, the lock test method
Test methods of the locks
UDC 683.3:001.4 GB 8384-87
This standard applies to iron (copper) padlocks, marble drawer locks, single (double) tongue marble door locks, bicycle locks for density, robustness, flexibility and surface quality testing.
1, the density
1.1 Key different teeth number
1.1.1 Define the number of teeth that are numbered according to the number of bullet holes and the length of the round head.
1.1.2 Test method Check the thin teeth to see if the number of different teeth meets the requirements.
Check the actual object, whether the number of marble holes and the length of the round head marble meet the requirements of the dental book.
N=ab.........................................................(1)
Where: N - the maximum number of teeth of the key;
A——round head marble difference;
b - the number of marble holes.
1.2 Key tooth arrangement rationality
1.2.1 Defining whether the tooth is reasonable when the tooth book is arranged.
In the tooth book, it should be grouped and sorted out to remove the poorly-contained tooth. Any two key knives in each group of teeth are numbered, not less than two marbles. At the same time, pay attention to avoid the opening of the tooth and the same size of the tooth.
1.2.2 Test method Check whether the toothbrush book meets the definition requirements.
A random check of 50 objects, according to the definition requirements.
1.3 round head marble differential
1.3.1 Define the length difference of each round ball.
1.3.2 Test method Measure the size of the round head marbles of different lengths and determine the step difference of the round head marbles.
In the absence of dissent, the level of the bottom of the tooth can also be measured instead of measuring the difference in the level of the ball.
1.3.3 Test Tools
0~125mm vernier caliper (engraved value 0.02mm), 0~25mm first-order precision outer diameter micrometer (scale value 0.01mm) or fixture 0~10mm first-class accuracy dial indicator (scale value 0.01mm).
1.4 Interoperability rate
1.4.1 Define the percentage of times that are turned on and the total number of trials opened.
1.4.2 Test method When testing, take the specified number of samples, grouped by five people, and open the trial number (the total test time does not exceed forty-five minutes).
1.4.3 Calculation method of mutual opening rate
X=R/T(T-1)×100%....................................................... (2)
Where: X - mutual opening rate, %;
R - the number of times it was turned on;
T - the number of samples.
1.5 Safety facilities
1.5.1 Defining locks should have structural devices that enhance safety.
1.5.2 Test method
a. Pull out: the lock should have anti-pull measures to increase the pull-out performance;
b. Anti-smashing: the locking tongue is extended, and after the operation knob is insured, it is pressurized with the specified mass. Under the condition of ensuring the effective length of the locking tongue, the mechanism should not fail;
c. Anti-saw: After the bolt is extended, the lock body is clamped, the bow is cut by hand, and the new steel saw blade is used to cut the tongue at the mouth of the lock tongue, which is not easy to be sawed;
d. Anti-drilling: Fix the lock on the 6mm platform drill, and use the φ6mm high-speed steel drill bit to drill from the key position, which should not be drilled;
e. Anti-unloading: The key is installed on the door, and the lock cannot be removed normally after the door is locked;
f. Safety chain: When the chain is not taken, the outside person cannot be removed and can withstand the specified static tension.
1.6 lock core slot closed center degree
1.6.1 Defining the Cylinder Keyway The grooved bend should be close to or beyond the centerline of the keyway.
1.6.2 Test method Use a 0.2mm standard feeler gauge to test the plug parallel to the center line of the lock cylinder slot.
1.7 Shake the lock should be free of marbles
1.7.1 When the rocking lock is defined, there should be no billows.
1.7.2 Test method After the key is normally pulled out, hold all the floating parts of the lock head, and the direction of the bullet hole should be no sound (other than other noise).
1.8 Key angle
1.8.1 Define the angle at which the key deflects the key position when the key is reset and the lock is turned on.
1.8.2 Test method Install the lock on the tester, turn the lock off and then twist the key to open the lock. When the key is reset, measure the angle between the center line of the key and the position of the key.
2, firmness
2.1 Durability
2.1.1 Defining the service life of the lock
2.1.2 Test method The lock is mounted on the lock life tester through the clamp to simulate the use test. Insert the key to realize the lock beam, the lock tongue, the lock ring open and close, and the key is pulled out for one cycle. The total number of cycles measured is the service life. The test speed and the number of cycles are as required by the standard (a small amount of lubricant is allowed before the test, and the lubricant is added once every 10,000 times in the middle). When the lock can no longer be turned on, the service life is reached. If there is no test machine, it can be replaced manually.
2.2 The tension between the two screw joints of the lock head
2.2.1 Define the tensile strength of the internal thread of the lock head and the screw connection.
2.2.2 Test method The lock is installed on the tensile machine through the clamp. When testing, the screw and the thread should avoid the three teeth, and the two screws should be stressed at the same time.
2.2.3 Test equipment
0~9800N tensile testing machine (accuracy 0%).
2.3 handle, knob pull
2.3.1 Define the resistance of the handle (handle) knob to connect the part.
2.3.2 Test method The lock is mounted on the 0~9800N tensile machine (accuracy 0%) through the clamp to gradually increase the shaft pulling force to the specified value.
2.4 lock drive rod torque
2.4.1 Defining the torque of the lock head rotation bar when it is rotated.
2.4.2 Test method Install the lock head on the torque machine through the clamp, pull out the key, twist the transmission rod, and gradually increase the force to the specified value (the clamp position is 6mm at the end of the transmission strip).
2.5 key button moment
2.5.1 Define the torque the key is subjected to.
2.5.2 Test method Install the lock head on the torque machine through the clamp, insert the key into the lock cylinder, and then pull out the 1.5~2mm, so that the lock cylinder can't rotate, and gradually increase the force to the specified value.
In the absence of a torque machine, the lever shackle code can be used instead.
2.6 Riveting parts, welded parts, and strong parts
2.6.1 Define the firmness of the rivet, weldment and solid parts on the lock.
2.6.2 Test method Rivet, weld and solid parts are mounted on the 0~9800N tensile machine through the clamp, and gradually increase to the specified value along the actual direction of the force.
2.7 axial static pressure after bolt safety
2.7.1 After defining the safety of the bolt (internal protection), gradually increase the force along the direction of expansion and contraction of the bolt, and the pressure of the bolt insurance and the tongue can withstand.
2.7.2 Test method The lock body is installed on the tensile machine or press of 0~9800N through the clamp (accuracy 1%), and gradually tightens the top of the bolt after the insurance to the specified value.
2.8 lock tongue lateral force
2.8.1 Define the forces that the tongue can bear laterally (front and back).
2.8.2 Test method The lock body is installed on the 0~9800N tensile machine or press through the clamp, 2.5mm away from the plane of the lock body, and the side of the lock tongue is gradually applied to the specified value.
2.9 Lock beam tensile strength
2.9.1 Define the tensile strength of the lock beam after closing.
2.9.2 Test method After the lock beam is closed, the lock is installed on the 0~9800N (accuracy 1%) tensile machine, and the lock beam is gradually applied to the specified value along the symmetrical center line of the lock beam.
2.10 lock connection torque
2.10.1 Define the torque that the lock and casing connections can withstand.
2.10.2 Install the lock and the cover on the torque machine through the clamp, and gradually increase the force on the lock to the specified value (the torque is 1%).
2.11 Cylinder Block Pulling Force
2.11.1 Define the tensile strength of the lock cylinder.
2.11.2 Test method Insert the key into the lock cylinder and rotate it by 90°, then install the lock and the key through the clamp on the 0~9800N (accuracy 1%) tensile machine, and gradually increase the force to the specified value.
2.12 casing two positioning feet torque
2.12.1 Define the torsion resistance of the two positioning feet of the casing.
2.12.2 Test method The lock head is mounted on the torque machine through the clamp, and the key is inserted into the lock cylinder slot to gradually increase the key forward and reverse to the specified value (torque machine accuracy 1%).
2.13 sleeve pull force
2.13.1 Define the degree of tightening of the sleeve on the lock housing.
2.13.2 Test method The locks are mounted on the 0~9800N (accuracy 1%) tensile machine through the clamps, and the two sets of nozzles are gradually applied to the specified values ​​in the tangential direction of the lock ring.
2.14 lock ring pull
2.14.1 Define the tensile strength of the bicycle lock ring.
2.14.2 Test method The lock is mounted on the 0~9800N (accuracy 1%) tensile machine through the clamp, and the lock ring is exposed to the lock housing portion along the symmetrical center line to gradually increase the force to the specified value.
2.15 board firmness
2.15.1 Define the bending resistance of the handle plate.
2.15.2 Test method Tighten the inner and outer double-faced screws on the simulated door, and install the door on the 0~9800N (accuracy 1%) tensile machine through the clamp, and gradually increase the force to the specified value.
2.16 lock box (plate) pull
2.16.1 Define the pull capacity of the lock box (board).
2.16.2 Test method Install the lock box (board) on the 0~9800N (accuracy 1%) tensile machine through the clamp, and gradually increase the force to the specified value at the outer edge of the lock tongue.
3, flexibility
3.1 Open flexibility
3.1.1 The key is naturally slipped in, and the key rotates slowly along the lock core to the direction of the lock cylinder slot, and can be smoothly inserted into the lock cylinder slot;
The lock cylinder is flexible to rotate, the key should rotate without rotation in the working range, and the lock can be opened and closed freely;
The key naturally bounces back, and after the straight-open lock is opened (the horizontal lock is unlocked, the bicycle lock is closed), the key is returned to the key position.
3.1.2 Test method: Take the key and follow the lock core, turn the key and insert it into the lock key slot; use the key to turn the lock core without the feeling of card rolling; after the lock core rotates, the lock tongue, lock beam and lock ring should be Jump out smoothly; the key can be naturally reset when the lock is turned on or off, and the key can be removed smoothly.
3.1.3 Test tool hand test or special equipment.
3.2 Key insertion force
3.2.1 Define the maximum force required to insert and remove the keyway slot.
3.2.2 Test method Install the lock on the key insertion force tester through the clamp, and correct the insertion and removal position of the key and the lock cylinder; then test and see the indication value of the indicator (allowing to repeat three times, one time is good) .
3.3 Insurance is flexible and reliable
3.3.1 Define the strength and reliability of the lock insurance mechanism for handling.
3.3.2 Test method The insurance should be flexible by hand rotation (or pulling); the simulated use case should be used for collision and shock test, and the insurance should have no failure.
3.3.3 Test tool hand test or special equipment.
3.4 Locking tongue closing force
3.4.1 Define the force required for the bolt to enter the lock box (plate) when the door is closed.
3.4.2 Test method The lock body and the lock box (board) are installed on the test machine through the clamp. The installation clearance between the lock body and the lock box (plate) should be 2.5±0.5mm, and the step-by-step addition should be started when the two are not in contact. Force, press the lock tongue into the lock box (board), and see the indicator value.
3.5 lock tongue axial static pressure
3.5.1 Define the force required to press the bolt along the direction of the expansion and contraction of the bolt to a specified position from the plane of the lock body.
3.5.2 Test method The lock body is mounted on the axial force measuring machine of the bolt through the clamp, and the pressure is gradually applied to the middle of the top end of the bolt until the bolt is pressed to a predetermined position away from the plane of the lock body. Look at the indicator value.
3.6 Lock beam down pressure
3.6.1 Define the closing force required to press the lock beam into the lock beam hole.
3.6.2 Test method After the lock beam is opened, align the lock beam end with the lock beam hole, and place it on the test machine to gradually increase the force on the top center of the lock beam until the lock beam is closed, and see the indicator value.
3.7 lock ring return
3.7.1 Defining the performance of the bicycle lock lock ring to open and reset under the action of the tension spring.
3.7.2 Test method When the key is used to unlock the lock, the lock ring should be able to reset to the specified position by itself. Allow to open three times. Take a good one as the standard.
4, appearance
4.1 Surface quality
4.1.1 Definitions refer to the surface quality of the lock head, lock body, lock tongue, key, handle, knob, etc.
4.1.2 Test method Painted parts: tested according to the 29th group of GB 1720 "Method for Measuring Adhesion of Paint Film".
Electroplating parts: According to GB 5938 "Metal coating of light industrial products and chemical treatment layer corrosion resistance test method neutral salt spray test (NSS) method" test, evaluation method. According to GB 5944 "Evaluation of corrosion test results of metal coatings for light industrial products".
Polishing, sanding, sandblasting, gold-cut workpieces, gold-cut sample plate point-of-sale readings comparison: shape geometry, with universal square, angle ruler and standard feeler projector.
4.2 Matching tongue and lock tongue fit clearance
4.2.1 Define the difference between the vertical and horizontal dimensions of the tongue and the cross-sectional dimension of the bolt.
4.2.2 Test method The lock tongue is indented and extended on both sides of the gap. The plug is inserted from the middle of the lock tongue with a specified feeler gauge. After being inserted, it can be dropped into the plug feeler.
4.3 Cylinder shoulder clearance
4.3.1 Define the clearance between the cylinder bore shoulder of the lock head and the lock cylinder shoulder.
4.3.2 Test method Measure the maximum diameter of the cylinder bore shoulder minus the minimum diameter of the lock cylinder shoulder, which is the lock cylinder shoulder clearance.
4.3.3 Test Tools
0~125mm vernier caliper (scale value 0.02mm)
4.4 Locking dimensions and installation center
4.4.1 Define the door lock, drawer lock lock outer diameter size and edge to lock shaft size requirements.
4.4.2 Test method Use the depth vernier caliper to measure the distance from the lock tongue plane to the lock shaft center (the structure separating the lock head and the lock body, and measure the center line distance from the lock tongue plane to the drive rod hole).
4.5 The height of the lock beam jumps out and the length of the lock tongue extends. Lock ring size
4.5.1 Defining the distance between the end face of the lock beam and the plane of the lock body after the padlock lock beam is jumped out;
The distance between the end of the bolt and the plane of the tongue;
When the bicycle lock lock ring is locked, it is deep into the lock body and the exposed length dimension after opening.
4.5.2 Test method Use 0~125mm vernier caliper (scale value 0.02mm) to measure the distance between the tongue end and the tongue plane; after the lock beam jumps out, use the standard feeler gauge to test the plug according to the specified value. Can fall down as a stuffing).
Lock the lock ring, use a stylus to mark the lock ring on the deep end, and then open the lock ring. Use a 0~125mm vernier caliper (scale value 0.02mm) to measure its in-depth dimensions and its exposed dimensions.