Loader Bucket, loader arm, rocker arm, Loader Linkage Rod cylinder, need to be connected by the loader pin shaft, in order to reduce wear, hole installation bushing, pin shaft material is the best choice of 42CrMo, consider the price of 45 steel, both choose 40Cr, do conditioning treatment HB250 to 300 is ok, of course, about 300 strength is better, Machining is more difficult. If the shaft surface is to withstand some wear resistance, it must be medium frequency surface hardening or hard chrome plating. My company for many heavy industry enterprises supporting excavator pin shaft, diameter is 50-135mm, each company designated material is also different, roughly 45 steel, 40Cr steel and 42CrMo. 42CrMo is used for important parts with large bearing capacity. Liugong Loader Pin Shaft Bushing,Sdlg Loader Pin Shaft Bushing,Xcmg Loader Pin Shaft Bushing,Sem Loader Pin Shaft Bushing Henan Hanfeng Construction Machinery Co., LTD , https://www.hf-loaderparts.com
On July 10, Zhang Chih-ming, the secretary of Shanghai Petrochemical Corporation, told reporters that the plan was submitted to the National Development and Reform Commission in 2005. At that time, the consideration was to increase the ethylene gap in the company's downstream product production. However, due to the sharp increase in international crude oil prices, the profitability of petrochemical products It is also constantly decreasing. At present, the company has no actual plan for this project.
On July 10, the Development and Reform Commission announced that the plan for the remote transformation and expansion of the 150,000-ton ethylene plant of Shanghai Petrochemical No. 1 had been approved. It is understood that after the expansion of the ethylene plant capacity will be expanded three times, the company's total ethylene production capacity will increase by 35%.