At the beginning of the end, will be coronavirus pneumonia the spread of infection, sheng da qing completed integration involved problems.the zhuolu materials technology co., LTD. Set up the first time coalesced with chairman, general manager of deputy team leader "will be coronavirus working group for disposal of epidemic prevention and control", fully implement the departments about will be coronavirus pneumonia epidemic prevention and control work requirements, and according to the requiremen
2020-03-31 27
On December 28, 2019, sheng da qing completed integration involved problems.the zhuolu materials technology co., LTD. The factory director Cai Wenhong, Mary liu, head of the workshop, such as people, to zhuolu county is funding the lees a knot in one's village in sympathy, for poverty alleviation for 31 poor households sent wheat flour, edible oil, such as caffeine arts, allow poor people feel the warmth and care from companies. Comrade CAI wenhong led the staff to visit the poor families, the e
2020-03-31 30
Chen haibin, an employee of shengda qingjun, has been an excellent employee of the company since he started his work in September 2019. He is progressive in thinking, steadfast in work, conscientious and hard-working. Chen haibin was born into a poor farmer's family. His wife suffered from depression for many years. The eldest daughter is studying in college in shijiazhuang, and the younger daughter is studying in zhuolu primary school. The financial pressure and all the responsibilities of the
2020-03-31 21
Precision casting is a casting method relative to the traditional casting process. It can obtain relatively accurate shape and high casting precision. A more common practice is to first make the required blank (can be left with a very small residual or no residual) of the electrode, and then with the electrode corrosion mold specific, forming a cavity. The original wax mould is obtained by casting the wax by casting. Brush the wax mold with high temperature resistant liquid sand. After the suffi
2020-03-26 29
The following are several factors that can cause dimensional accuracy defects in precision casting: 1. Influence of casting structure. Casting wall thickness, shrinkage, casting wall thin, shrinkage; Free shrinkage rate is big, hinder shrinkage rate is small. 2. Influence of casting material. The higher the carbon content in the material, the smaller the linear shrinkage, and the lower the carbon content, the larger the linear shrinkage. The casting shrinkage of common materials is K=(lm-l
2020-03-26 20
Steel quenching is one of the steel is heated to a critical temperature Ac3 (hypoeutectoid steel) or Ac1 (hypereutectoid steel) above temperature, heat preservation for a period of time, make all or part of the austenitizing, then at greater than the critical cooling rate of cold faster cold below Ms to martensite isothermal near (or Ms) or bainite transformation of heat treatment process. Generally also aluminum alloy, copper alloy, titanium alloy, toughened glass and other materials of the sol
2020-03-26 19