[10th focus]
On August 25-27, the “Twelfth Five-Year†Industrial Development Seminar of Henan Superhard Materials Industry Alliance was held in Baiyunshan Lantian Hotel, Lu County, Luoyang City. More than 40 representatives from more than 20 companies attended the seminar. . In addition, the specially invited Henan Development and Reform Commission and leaders of Zhengzhou City, Xuchang City and Nanyang Development and Reform Commission also attended the meeting. It is said that super-hard materials and products will be listed in the sub-area of ​​functional materials in the new materials of the national “12th Five-Year Plan†strategic emerging industry, and become an emerging industry that the country focuses on cultivation and development. In order to seize this development opportunity, we will better understand the spirit of relevant national policies and promote technological advancement and industrial upgrading in the industry. In this context, the seminar was co-sponsored by the Henan Superhard Materials Industry Alliance and the China Machine Tool Industry Association Superhard Materials Branch.
News link: Henan Province Superhard Materials Industry Alliance "Twelfth Five-Year" Industrial Development Seminar was successfully held
[macro window]
According to the survey, 60% to 70% of SMEs are facing serious survival difficulties. If 2009 is the most difficult year for SMEs, 2010 is the most complicated year, and SMEs in 2011 are the most tangled year. "The most outstanding performance of the current SMEs' survival dilemma is three: one is unprecedented financing difficulties; the other is a very serious labor shortage; the third is the era of high-cost entry into all directions."
News link:
Nearly 70% of SMEs have serious difficulties in survival
SME transformation planning will be designed to reduce the burden of corporate taxes and fees
The opening of the APEC SME Summit locked in the theme of “The Power of Growthâ€
[Industry Chain]
News link:
Analysis: Seven strategies of the central stone industry cluster
Lang Xianping: The property market frenzy is a bubble phenomenon
"Break the beach" in Chengdu, the western hardware industry ushered in a big leap
"Twelfth Five-Year Plan" safeguards for machine tool industry
The impact of further implementation of ECFA on the flat grinding market
Analysis of the operation of key industries in China in the past ten years: non-ferrous metals
The sorrow of raw materials prices of photovoltaic companies
ã€technology】
A diamond thin film was successfully prepared on a Mo substrate by a direct current hot cathode plasma chemical vapor deposition method using a mixed gas of methane, hydrogen and nitrogen. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Raman spectroscopy (Raman) were used to characterize the morphology, orientation and quality of diamond films grown under different nitrogen atmospheres. The results show that the addition of proper amount of nitrogen can not only promote the growth rate of diamond film but also promote the appearance of diamond (100) crystal plane. With the increase of nitrogen content, the diamond grains are gradually refined, and the non-diamond component in the film increases. But the diamond surface becomes smooth and flat. This work contributes to the application of the diamond film coating field.
News link: Study on the effect of nitrogen on the preparation of diamond films by DC-PCVD method http://
[Editing Vision]
News link: Communicate with you and I spread infinitely - Superhard material network enters Huajing Diamond, Zhengzhou Sanmao Office http://
Diamond prices have a downward trend http://
The problem of superhard tools in China http://
The production and development trend of diamond micropowder http://
The National Vocational Classification Dictionary (Mechanical Part) Revision Working Committee, Expert Committee Joint Meeting Work Deployment Meeting was held in Beijing
(1) Diamond pen dressing grinding wheel: According to the size of diamond particles and their distribution in the pen, diamond pens can be divided into several types, such as chain and powder. The alloy with strong bonding force is used as the bonding agent, so the diamond grinding wheel particles are not easy to fall off during use, so there is no need to repair the grinding process.
(2) Grinding wheel dressing by rolling method: Diamond grinding wheel dressing by rolling method. Grinding wheel drives the rolling wheel at the speed of 1~2m/s by reducing the speed
Made of, carbide or abrasive) rotary. The pressure of rolling wheel applied to grinding wheel is about 3~5MPa, grinding the surface of diamond grinding wheel
Make the abrasive particles fall off. The grinding wheel dressing by rolling method has better cutting performance and lower cost, but the surface roughness of the grinding part is rougher and rolling
Damage, short life, easy loss of precision. Therefore, this dressing method is mainly used for forming grinding with small batch size and low precision.
Green silicon carbide or ceramic white corundum is used for dressing. Dressing ring is the first choice for dressing diamond grinding wheel or CBN grinding wheel. It is sharp in dressing, not easy to remove sand and has high dressing efficiency.
Wheel Dresser,Dressing Tools,Dressing Roller,Grinding Wheel Dresser
Henan Jinlun Superhard Material Co., Ltd , https://www.jlsuperhard.com