Tungsten Carbide Roll Rings, also known as hard alloy roller ring, has been widely used in the rolling production of high-speed wire, bar, threaded steel, seamless steel pipes, etc. due to its good wear resistance, high-temperature hardness, heat fatigue resistance, thermal conductivity, and high strength. Tungsten Carbide Sleeve,Tungsten Carbide Roller, Steel Rebar Rolling,Steel Wire Rod Rolling,WC Roller Luoyang Golden Egret Geotools Co., Ltd. , https://www.xtchvof.com
(Reporter Ma Lin) Yesterday, the China Machinery Industry Enterprise Management Association and the World Managers' Web site jointly released the 2006 China Machinery 500, with the FAW, SAIC, and Dongfeng three major auto groups ranking in the top three of the top 500 companies.
In this year's Top 500 list, the automobile manufacturing industry has become an important part, with 105 companies selected, accounting for 21%, second only to the general equipment manufacturing industry.
Among them, FAW, SAIC, Dongfeng three major auto groups also occupy the top three of the top 500.
From the perspective of sales revenue, the sales revenue of products of the "China Top 500 Machinery Enterprises" in 2006 totaled 2.064105 trillion yuan, an increase of 29.06% over the previous year; the total profit was 160.82 billion yuan, an increase of 18.76% over the previous year. The various economic indicators are obviously better than last year.
The organizers also announced "World Machinery 500" at the same time yesterday. This year, a total of 53 companies were selected in the country and they are the third-largest companies in the country. The list of top 100 Chinese companies in this list includes FAW, SAIC, and Dongfeng. They ranked 71st, 83rd, and 85th respectively in the world. Most other companies ranked 300th.
The Tungsten Carbide Roll Rings we produce mostly come in two series: WC Co and WC Co Ni Cr, with Co and Co Ni Cr as binders ranging from 6wt% to 30wt%. From a usage perspective, hard alloy rollers have good comprehensive mechanical properties, with a bending strength of over 2200 MPa and an impact toughness of (4-6) × At 10 ^ 6J/m ^ 2, the Rockwell hardness (HRA) can reach 78~90. During the high-speed wire rolling process, the single groove steel passing amount is much higher than that of cold hard cast iron or high-speed steel rollers.