With the development of computer hardware and simulation software and the maturity of various finite element software, the application of numerical simulation in casting molding is more and more, and has entered the stage of practical engineering. In this paper, we learned a lot of new knowledge and solved...
Taking the tractor split axle housing as the research object, the paper firstly analyzes the process of the overall structure of the split axle housing, clarifies the quality control requirements for raw materials and auxiliary materials, determines the pouring position, pouring temperature and parting surface of the axle housing,...
As the key part of tractor, the main research contents are as follows: firstly, analyze the process of axle housing structure, set reasonable process parameters, then determine the gating system, analyze the influence of different gating systems on the filling and solidification process of the axle housing, and then...
A certain type of broken axle housing of a company is mainly used for tractor load-bearing bridge, with an annual output of 10000 sets. The service conditions of the axle housing include plateau, saline alkali, desert and other terrain and latitude. Under full load condition, it must bear high...
1 Reagent Anhydrous sodium carbonate solid (analytical pure), sodium peroxide solid (analytical pure), nitric acid (analytical pure), sulfuric acid (analytical pure), hydrofluoric acid (analytical pure), high-purity argon (AR > 99.99%) and secondary deionized water for water. Boron standard solution, concentration 1 mg / ml. 2 Instruments Prodigy ICP inductively...
Working conditions of ICP inductively coupled plasma spectrometer The working conditions of ICP ICP ICP spectrometer are: high frequency power, atomizer pressure, atomization efficiency (pump speed), integration time (exposure time), etc. Considering the small interference effect and strong and stable analysis strength, the working conditions of the instrument are...
1 Sample weight If the boron content in ferroboron is high, the sample weight is too small, the weighing error will increase; if the sample weight is too much, the reagent addition amount will increase correspondingly, and the sample is not easy to dissolve completely, and the overflow may...
Boron (element symbol b) is a rich element in China. Boron is often known as the vitamin in steel. Trace boron can significantly improve the hardenability of steel and save a lot of expensive alloy elements with strong hardenability, and greatly improve the wear resistance of metal materials. Boron...