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The analysis of essential characteristics of plastic mold parts
article source:  Executive editor:Yizezhi  View:2128  Publish time:2015-04-21

With the rise of emerging mold industry, plastic mold parts for the high accuracy requirement and quality requirement of higher standing in hardware accessories, is a popular emerging industries.Like every products, plastic mold parts has its essential characteristics,essential characteristics of plastic mold parts for you.
1, the wear resistance
Blank plastic changes in the mold cavity, the cavity surface flow and sliding, the cavity surface with a dramatic friction between billet, resulting in mould failure due to wear and tear. So the wear resistance of materials is one of the most basic, the most important performance of mould. Hardness is the main factors influencing the abrasion resistance. Under normal circumstances, the mould parts of hardness is higher, the smaller the amount of wear and tear, abrasion resistance and the better. In addition, abrasion resistance and carbides in the material type, quantity, shape, size and distribution.

2, high temperature performance
When into the mold working temperature is higher, can make the hardness and strength, cause mould early wear or produce plastic deformation and failure. Therefore, die material should have high tempering stability, resistance to ensure that the mold in the working temperature, has high hardness and strength.

3, the corrosion resistance
Some mould such as plastic die on the job, as a result of the elements such as chlorine, fluorine plastics, thermal decomposition after precipitation HCI, HF, such as strong erosion gas, erosion surface of mould cavity, increasing its surface roughness, aggravate the wear failure.

4, cold and hot fatigue resistance performance
Some mold in the process of work is in a state of repeated heating and cooling, the cavity surface tension, pressure and stress effect, cause surface cracking and spalling, increase the friction, obstacles to plastic deformation, reduces the dimension precision, resulting in the mould failure. Cold and hot fatigue is one of the main form of hot-work die failure, help the mould should have high resistance to cold and hot fatigue performance.

5, strong toughness
Die working conditions are very bad, some often bear the impact load of larger, resulting in brittle fracture. Suddenly brittle fracture at work to prevent mold parts, mold with high strength and toughness. Mould toughness mainly depends on the material state of carbon content, grain size and organization.

6, fatigue fracture
Mould working process, under the effect of cyclic stress of the long term, often leads to fatigue fracture.Its form has little energy repeated impact fatigue fracture and tensile fatigue fracture contact fatigue fracture and fatigue fracture.Fatigue fracture properties of mold mainly depends on the strength, toughness, hardness, and the content of inclusions in the material.

The above six is the essential characteristics of plastic mold parts, main show is: wear resistance, high temperature performance, corrosion resistance, cold and hot fatigue resistance, strong toughness and fatigue fracture resistance and so on the six essential characteristics of plastic mold parts.Mold accessories, precision mold components, mold parts if necessary can find appropriate dongguan mold.


 

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