DAYUE non-standard
Custom mold parts necessary characteristics analysis
Dayue Precision Technology (Dongguan) Co., Ltd. refers to the general term for metal fittings exclusively used in stamping molds, plastic molds or FA automation equipment in the mold industry. Hengtongxing mold accessories include: punch pin, punch, guide column, Guide Sleeve, thimble, cylinder, steel Ball Sleeve, independent guide column, self-lubricating plate, self-lubricating guide sleeve, oil-free guide sleeve, oil-free slide plate , Guide post components, etc.
The essential features of Dayue Precision Technology (Dongguan) Co., Ltd. are as follows:
1. Wear resistance
When the plastic material of Dayue Precision Technology (Dongguan) Co., Ltd. is plastically deformed in the mold cavity, it flows and slides along the surface of the cavity, which causes violent friction between the surface of the cavity and the blank, resulting in the failure of
Mold Parts due to wear . Therefore, the wear resistance of the material is one of the most basic and important properties of the mold.
The hardness of Dayue Precision Technology (Dongguan) Co., Ltd. is the main factor affecting wear resistance. In general, the higher the hardness of the mold parts, the smaller the amount of wear and the better the wear resistance. In addition, the wear resistance is also related to the type, number, form, size and distribution of carbides in the material.
2. Strong and tough
Most of the working conditions for processing mold parts are very bad, and some often bear large impact loads, which leads to brittle fracture. In order to prevent the mold parts from suddenly brittle breaking during work, the mold parts should have high strength and toughness. The toughness of mold parts mainly depends on the carbon content, grain size and microstructure of the material.
3. Fatigue fracture performance
In the working process of mold parts, under the long-term effect of cyclic stress, it often leads to fatigue fracture. Its forms are low energy multiple impact fatigue fracture, tensile fatigue fracture contact fatigue fracture and bending fatigue fracture.
The fatigue fracture performance of mold parts mainly depends on its strength, toughness, hardness, and the content of inclusions in the material.
4. High temperature performance
When the working temperature of the mold parts is higher, the hardness and strength will be reduced, resulting in early wear or plastic deformation of the mold parts and failure. Because the mold material should have high stability against tempering, to ensure that the mold parts have higher hardness and strength at the working temperature.
5. Cold and heat fatigue resistance
Some mold parts companies are in the state of repeated heating and cooling during the work process, which causes the surface of the cavity to be pulled and the stress of the pressure changes, causing the surface to crack and flake, increasing friction, hindering plastic deformation, and reducing dimensional accuracy. As a result, the mold fails. Cold and hot fatigue is one of the main forms of hot work die parts failure, help such mold parts should have high resistance to cold and hot fatigue performance.
6. Corrosion resistance
When some mold parts such as plastic molds work, due to the presence of chlorine, fluorine and other elements in the plastic, after heating, the strong corrosive gases such as hci and hf are decomposed, eroding the surface of the cavity of the mold parts, increasing the surface roughness and increasing wear Failure.
