Approval of multiple types of large hardness bolt wheel materials

The metallographic structure of the two kinds of rolling wheel bodies is quite different, indicating that there is a big difference in the state of use of the materials, which is formed by the different heat treatment processes. The difference in the form of crack propagation is mainly caused by the metallurgical quality of the steel, and is related to the mechanical properties of the steel under use.

Different tooth types lead to differences in the rheological resistance of the material to be processed, and it is necessary to appropriately increase the hardness of the rolling wheel for parts with high hardness. In the stage, the difference in working stress of the rolling wheel is formed in turn, and the working stress of the flat bottom rolling wheel is larger than that of the round bottom rolling wheel, which is also one of the reasons.

Therefore, the existing steel should be strengthened or toughened, or a high-strength bolt rolling wheel made of steel with better toughness than CrlZMoV steel should be used.

The forming method of the thread of the rolling wheel has a great influence on the use effect.

Rolling threads facilitates improved precision, and the flow lines in the material increase the strength of the tooth; however, if neglected, it is easy to retain the defects of the previous processing (such as the top layer of the tooth, the decarburized layer that has not been removed, etc.) and the formation of defects. .

The advantages and disadvantages of grinding threads are exactly the opposite.

From the perspective of processing costs, the former is much superior.

Through the analysis and discussion, we can get the following conclusions: (1) The structure of the two rolling wheels is different, and the dome round bottom structure of RDI is a better choice.

(2) The materials used in the two types of rolling wheels are similar, but the difference in metallurgical quality indicates that there is a large difference in the state of use of the materials, which is due to the different heat treatment processes. The difference in the form of crack propagation is mainly caused by the metallurgical quality of steel. RDZ should adopt appropriate strengthening and toughening measures or use steel with higher toughness to change the mechanical properties of steel under the condition of use.

(3) The heat treatment process of the two types of rolling wheels is different. It is necessary to appropriately increase the hardness of the rolling wheel for the parts with high hardness. At the stage, its performance indicators such as vibration and noise have been paid more and more attention.

Based on the research on the mechanism of vibration and noise of the drive axle, a new idea and method for noise control of the drive axle assembly are proposed. It is hoped that it can help the professional manufacturers to produce low-noise drive axle assemblies.

Product name         Aluminium phosphate

CAS No              7784-30-7

EC No                232-056-9

Chemical formula      AlPO4

Appearance           White Powder

Storage               Keep the product in a tightly closed container ,Isolate form any source of heat or ignition and moisture

Guarantee period       2 years in the case of sealed.

Packing unit           25kg Poly Propylene bag & 500kg Poly Propylene bag,

Any size customers want.

Application            Mostly used as binder and curing agent in the production of Hi-Temp Refractory Materials for kiln. as fluxing agent in the production of special glass, as binder in fabrication of ceramics or tooth, and as catalyst in   organic synthesis.

Goods characteristics   White Powder.

Soluble in acid or alkali solution ,insoluble in water or alcohol.

CHEMICAL ANALYSIS

Aluminum Phosphate Series

Fire Resistant Material Binder, Aluminum Phosphate For Refractory Material, Refractory Condensed Aluminum Phosphate

shijiazhuang city xinsheng chemical co.,ltd , http://www.xsphos.com