1) Sharp cutting and processing;
(2) Diamond cutting pieces have high rigidity, high strength and long service life;
(3) The ultra-thin diamond cutting piece has high precision, which can be used for slotting machine cutting, and the incision is smooth without collapse;
(4) The continuous cutting of Valin diamond slices does not slip and does not appear the phenomenon of blade passivation;
(5) The diamond cutting slot is narrow, which can greatly improve the utilization rate of precious raw materials.
Application materials of ultra-thin diamond cutting pieces:
Grinding materials: refractory materials, ultra-fine whetstone, whetstone, whetstone cutting;
Ceramic materials: alumina, zirconia, silicon carbide, peng carbide, boron nitride, ceramic lining brick, piezoelectric ceramics, black ceramics, glass products;
Semiconductor materials: silicon carbide, silicon wafer, monocrystalline silicon, polysilicon, solar cell, circuit board (PCB);
Magnetic materials: magnetic core, magnetic sheet, magnetic ring, permanent magnet ferrite, rare earth Ndfeb;
Glass materials: all kinds of glass tube, glass spout, tea leakage, high borosilicate glass (e-cigarette tube), rice beads, capillary glass tube, optical glass, quartz glass, microcrystalline glass, sapphire, crystal, jade;
Brittle metal materials: YG series hard alloy, tungsten steel round rod;
Optical materials: LED, LCD, quartz photovoltaic, quartz crucible;
Alloy materials: high speed steel, die steel, alloy steel, stainless steel;
Other materials: carbon fiber material, valve rod, brake pad
Abrasive Blade,Angle Grinder Cutoff Disc,1 Inch Cut Off Wheel,Aluminum Oxide Thin Cutting Wheels Henan Jinlun Superhard Material Co., Ltd , https://www.jinlunsuperhard.com
As the new year approaches, negotiations over the power coal contract are once again heating up, aiming to alleviate the longstanding tensions between the coal and electricity sectors. However, the approaching peak winter electricity demand is expected to exacerbate losses for thermal power companies. This ongoing debate over coal pricing has sent ripples of anxiety through the market.
Li Junfeng, Director of the National Center for Climate Change Strategic Research and International Cooperation Center, humorously remarked, "For energy price reforms, this debate might just go on indefinitely." Meanwhile, Hao Xiangbin, Director of the Economic Operations Department at the China Coal Industry Association, expressed his optimism in an interview with the China Economic Times on November 25th, stating that integrating coal prices could bring key contract coal prices closer to market rates. He emphasized, however, that this process would require complementary measures to ensure proper price execution.
With the domestic coal market fully liberalized since 2013, the state no longer intervenes in coal pricing. The proposal to cancel the key contract and move toward coal price integration has already been submitted to the State Council. While there is hope that this integration could ease coal-electricity conflicts, some experts remain skeptical. At the 4th "Energy and Power Development" forum held on November 25th, Li Ying, Chief Engineer of the State Grid Energy Research Institute, argued that such a move wouldn’t resolve existing issues. She explained that even if all coal prices were based on spot market prices, the fundamental contradictions between coal and electricity would persist, potentially introducing new volatility risks.
An official from the National Energy Administration’s Policy and Regulation Department, speaking to the China Economic Times during the conference, highlighted that coal price integration must be part of broader electricity price reforms. The coal-electricity linkage policy needs improvement to ensure real-time adjustments between coal prices, on-grid tariffs, and retail electricity rates. A unilateral approach focusing solely on coal prices could hinder industry progress and fail to deliver meaningful results.
Hao Xiangbin proposed reducing the linkage rate between coal and electricity prices while decreasing the burden on power companies to absorb coal price fluctuations—perhaps limiting this to 5-10%. This strategy aims to preserve power companies' negotiating leverage while minimizing distortions in coal costs.
Li Ying boldly suggested establishing a unified national coal long-term contract and spot market platform, enforcing strict oversight of transportation costs, and setting a cap on electric coal prices by referencing international market rates.
Wang Baole, Director of Planning and Development at Guodian Group, noted that the current electricity price structure is misaligned with energy-saving and emissions-reduction goals. Due to delays in implementing the coal-electricity price linkage mechanism, thermal power plants have been operating at a loss. For instance, the top five power generation groups reported a collective loss of 12.8 billion yuan from January to September this year.
Public data shows that since 2003, the average profit margin for China's power industry has been only 2.4%, significantly lower than the 29.6% in the oil and gas sector and the 7.9% in the coal sector. When compared to CPI growth, China’s electricity prices increased by 3.4% between 2006 and now, lagging behind the CPI’s 3.7% growth rate, resulting in a real decline in electricity prices.
Wang Zhixuan, Secretary-General of the China Electricity Council, emphasized that thermal power remains crucial for securing China's energy supply. Persistent losses in thermal power not only dampen operational enthusiasm but also discourage investments in clean energy projects, ultimately threatening the stability of electricity supplies.
Li Ying further analyzed that the current electricity pricing system does not support the growth of clean energy. To address this, she recommended reducing the benchmark price for clean energy to reflect technological advancements and cost reductions, while introducing annual benchmarks to guide pricing scientifically. Distributed power supply and microgrid pricing mechanisms should also be established to encourage sustainable development.
In terms of grid operations, Li Ying advocated for policies that incentivize peak-load management and promote clean energy adoption. Breaking away from the current uniform on-grid tariff system, she proposed tiered pricing for coal, gas, nuclear, and hydropower plants. Establishing comprehensive ancillary service and energy storage pricing mechanisms could also drive cleaner energy integration.
Regarding electricity transmission, Li Ying suggested enhancing cross-regional renewable energy transport capabilities by increasing subsidies for wind and solar access systems. Provincial projects leveraging large-scale renewable energy should also qualify for renewable energy subsidies.
Finally, Li Ying emphasized the importance of promoting clean energy usage during off-peak hours. Implementing peak-valley or seasonal pricing across all user categories could widen price spreads and eventually extend time-of-use pricing to residential consumers.
The ongoing dialogue around coal-electricity relations underscores the urgent need for systemic reforms that balance economic viability with environmental sustainability.