ki materyèl ki pi bon pou mwazi?

La mwazi satisfè kondisyon yo nan kondisyon travay yo

1. Mete rezistans

Lè vid la plastik defòme nan la kavite mwazi, li koule ak glise sou sifas kavite a, sa ki lakòz friksyon vyolan ant sifas la nan kavite a ak vid la, ki lakòz mwazi an echwe akòz mete. Se poutèt sa, rezistans nan mete nan materyèl la se youn nan pwopriyete ki pi fondamantal ak enpòtan nan mwazi an.

Dite se faktè prensipal ki afekte rezistans mete. An jeneral, pi wo dite a nan pati mwazi, pi piti kantite a nan mete ak pi bon an rezistans nan mete. An plis, rezistans mete tou ki gen rapò ak kalite a, kantite, fòm, gwosè ak distribisyon carbures nan materyèl la.

2. Fòs

Kondisyon travay yo nan mwazi yo sitou trè move, ak kèk nan yo souvan sibi gwo chaj enpak, 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. Pèfòmans ka zo kase fatig

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, ka zo kase fatig tensile, contact fatigue fracture, and bending fatigue fracture.

The fatigue fracture performance of the mold mainly depends on its strength, severite, dite, ak kontni enklizyon nan materyèl la.

4. Pèfòmans tanperati ki wo

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. Rezistans korozyon

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.

Dezyèmman、the mold meets the process performance requirements

Faktori mwazi jeneralman enplike plizyè pwosesis tankou Forge, koupe, ak tretman chalè. Yo nan lòd yo asire bon jan kalite a nan manifakti mwazi ak diminye depans pwodiksyon an, materyèl la ta dwe gen bon forgeability, machinability, hardenability, hardenability ak grindability; it should also have small oxidation, decarburization sensitivity and quenching Deformation and cracking tendency.

1. Forgeability

Li gen ba rezistans deformation forge cho, bon plastisit, lajè ranje tanperati forge, low tendency of forging cracking and cold cracking and precipitation of network carbides.

2. Pwosesabilite recuit

Ranje tanperati a spheroidizing annealing se lajè, dite rkwit la ba, ranje a fluctuation piti, ak pousantaj spheroidizing la wo.

3. Machinability

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

4. Sansiblite nan oksidasyon ak dekarburizasyon

Lè chofe nan tanperati ki wo, rezistans oksidasyon an bon, vitès dekarburizasyon an dousman, it is not sensitive to the heating medium, and the tendency of pitting is small.

5. Hardenability

Apre asouvisman, li gen inifòm ak segondè sifas dite.

6. Hardenability

Apre asouvisman, ou ka jwenn yon kouch pi fon di, ki ka fè tèt di lè l sèvi avèk yon mwayen trempe modere.

7. Tandans asouvisman deformation ak fann

Trempe konvansyonèl gen ti chanjman volim, shape warping, slight distortion, ak ba tandans deformation nòmal. Conventional quenching has low sensitivity to cracking, and is insensitive to quenching temperature and workpiece shape.

8. Grindability

The relative wear of the grinding wheel is small, and the limit of grinding without burn is large. Li pa sansib a bon jan kalite a nan wou a fanm k'ap pile ak kondisyon refwadisman, and it is not easy to cause abrasion and grinding cracks.

Twazyèm, the mold meets the economic requirements

When selecting materyèl yo for the mwazi, the principle of economy must be considered to reduce the manufacturing cost as much as possible. Se poutèt sa, 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. An plis, 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. Defo kèk pwodwi yo se rezilta enfliyans mityèl.

Si w gen nenpòt kesyon sou endistri plastik,tanpri ou lib pou mande ekip FLYSE,nou pral ba ou pi bon sèvis!

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