Ko tehea te mea pai mo te hangai?

Te ー500 °C konumohe konumohe meets the requirements of working conditions

1. Mau te ātete

When the blank is plastically deformed in the mold cavity, ka rere, ka paheke i te mata o te rua, ka kaha te waku i waenga i te mata o te rua me te papatea, na te mea ka taka te pokepokea ki te kakahu. Na reira, the wear resistance of the material is one of the most basic and important properties of the mold.

Ko te pakeke te take matua e pa ana ki te aukati kakahu. I te nuinga, the higher the hardness of the mold parts, the smaller the amount of wear and the better the wear resistance. Hei taapiri, e pa ana hoki te parenga kakahu ki te momo, quantity, āhua, te rahi me te tohatoha o nga carbide i roto i te rauemi.

2. Strength

The working conditions of the molds are mostly very bad, and some of them are often subjected to large impact loads, which leads to brittle fracture. In order to prevent sudden brittle fracture of mold parts during work, the mold must have high strength and toughness.

The toughness of the mold mainly depends on the carbon content, grain size and organization state of the material.

3. Mahinga whati ngenge

In the process of mold work, under the long-term action of cyclic stress, fatigue fracture is often caused. Its forms include low-energy multiple impact fatigue fracture, whati ngenge tensile, contact fatigue fracture, and bending fatigue fracture.

The fatigue fracture performance of the mold mainly depends on its strength, pakeke, pakeke, me te ihirangi o nga whakaurunga i roto i te rauemi.

4. Te mahi pāmahana teitei

When the working temperature of the mold is higher, the hardness and strength will decrease, leading to early wear of the mold or plastic deformation and failure. Because the mold material should have high anti-tempering stability, to ensure that the mold has a high hardness and strength at the working temperature.

5. Resistance to cold and heat fatigue

Some molds are in a state of repeated heating and cooling during the working process, which causes the surface of the cavity to be pulled and pressure to change the stress, causing surface cracks and peeling, increasing friction, hindering plastic deformation, and reducing dimensional accuracy. Mold failure. Heat and cold fatigue is one of the main forms of failure of hot work molds, and this type of mold should have high resistance to cold and heat fatigue.

6. Te aukati waikura

When some molds such as plastic molds are working, due to the presence of chlorine, fluorine and other elements in the plastics, strong corrosive gases such as hci and hf will be resolved after being heated, which will erode the surface of the mold cavity, increase its surface roughness, and aggravate wear failure.

Tuarua、the mold meets the process performance requirements

Ko te hanga i nga maaka he maha nga tikanga penei i te whaa, tapahi, me te maimoatanga wera. I roto i te tikanga ki te whakarite i te kounga o te hanga pokepokea ai me te whakaiti utu production, kia pai te hanga o te rauemi, machinability, te whakapakeke, te pakari me te huri; it should also have small oxidation, decarburization sensitivity and quenching Deformation and cracking tendency.

1. Te Whakakore

He iti te wera o te whakaraeraetanga o te aukati, kirihou pai, te whānuitanga o te pāmahana te hanga, low tendency of forging cracking and cold cracking and precipitation of network carbides.

2. Te kaha ki te mahi whakaene

He whanui te awhe pāmahana whakaeneene spheroidizing, he iti te pakeke annealing, he iti te awhe rerekee, a he tiketike te tere o te spheroidizing.

3. Mahinga miihini

The cutting amount is large, the tool loss is low, and the machined surface roughness is low.

4. Te aro ki te hāora me te decarburization

Ina whakamahana i te pāmahana teitei, he pai te ātete hāora, he puhoi te tere decarburization, it is not sensitive to the heating medium, and the tendency of pitting is small.

5. Te pakari

Whai muri i te tinei, he riterite me te pakeke o te mata.

6. Te pakari

Whai muri i te tinei, ka taea te whiwhi i te paparanga hohonu ake, ka taea te whakapakeke ma te whakamahi i te reo tiini ngawari.

7. Te ahua o te tinei i te whakarereke me te pakaru

He iti te huringa rōrahi o te tiini tikanga, shape warping, slight distortion, me te iti o te ahua o te ahua rereke. Conventional quenching has low sensitivity to cracking, and is insensitive to quenching temperature and workpiece shape.

8. Te hurihanga

The relative wear of the grinding wheel is small, and the limit of grinding without burn is large. Kaore e aro ki te kounga o te wira huri me nga tikanga whakamatao, and it is not easy to cause abrasion and grinding cracks.

Tuatoru, the mold meets the economic requirements

When selecting rauemi for the ー500 °C konumohe konumohe, the principle of economy must be considered to reduce the manufacturing cost as much as possible. Na reira, under the premise of satisfying the performance, first choose the lower price, carbon steel can be used without alloy steel, and domestic materials can be used without imported materials. Hei taapiri, the production and supply of the market should also be considered when selecting materials. The selected steel grades should be as few and concentrated as possible .

The injection molding process conditions have an impact on the appearance and mechanical properties of plastic products. Each process condition parameter affects each other and is not independent. The defects of some products are the result of mutual influence.

Mena kei a koe etahi patai ー500 °C konumohe konumohe,Tena koa koa ki te patai Ko te roopu FLYSE,ka hoatu e matou he ratonga pai rawa atu!

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