Tiga Prinsip Pemilihan Bahan Acuan

(1) Acuan memenuhi keadaan kerja

 

  1. Ketahanan pakai

 

Apabila bilet didenaturasi plastik di dalam rongga, ia mengalir dan meluncur di sepanjang permukaan rongga, mengakibatkan geseran teruk antara permukaan rongga dan bilet, yang membawa kepada kegagalan acuan kerana haus. Jadi rintangan haus bahan adalah salah satu sifat yang paling asas dan penting bagi die.

 

Kekerasan adalah faktor utama yang mempengaruhi rintangan haus. Secara amnya, semakin tinggi kekerasan bahagian acuan, the smaller the wear amount and the better the wear resistance. Sebagai tambahan, rintangan haus juga berkaitan dengan jenis, kuantiti, morphology, saiz dan pengagihan karbida dalam bahan.

 

  1. Strength and tenacity

 

Most of the working conditions of the mold are very bad, and some of them often bear large impact load, which leads to brittle fracture. In order to prevent the sudden brittle fracture of mold parts, mold should have high strength and toughness.

 

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

 

  1. Fatigue fracture properties

 

During the working process of the mold, fatigue fracture often occurs under the long-term effect of cyclic stress. Its forms include low energy multiple impact fatigue fracture, patah keletihan tegangan, patah keletihan sentuhan dan patah keletihan lentur.

 

Prestasi patah keletihan dadu bergantung terutamanya pada kekuatannya, kekuatan, hardness and inclusion content in the material.

 

  1. Prestasi suhu tinggi

 

When the working temperature of the mold is higher, kekerasan dan kekuatan akan berkurangan, leading to early wear or plastic deformation of the mold and failure. Because the mold material should have high tempering stability to ensure that the mold has high hardness and strength at working temperature.

 

  1. Cold and thermal fatigue resistance

 

 

Some moulds are in the state of repeated heating and cooling in the working process, which causes the surface of the cavity to be tension and pressure variable stress, causes surface cracking and peeling, increases friction, hinders plastic deformation, reduces dimensional accuracy, and leads to mold failure. Thermal and cold fatigue is one of the main failure modes of hot-working mold, which should have high cold and thermal fatigue resistance.

 

  1. Rintangan kakisan

 

When some moulds such as plastic moulds are working, disebabkan oleh kehadiran klorin, fluorine and other elements in the plastics, strong corrosive gases such as HCI and HF are decomposed and precipitated after heating, which erode the surface of the mould cavity, increase its surface roughness and aggravate the wear failure.

 

 

(2) Mold meets process performance requirements

 

Mold manufacturing usually goes through forging, memotong, heat treatment and other processes. Bagi memastikan kualiti pembuatan acuan dan mengurangkan kos pengeluaran, bahan harus mempunyai kebolehtempaan yang baik, cutting machinability, kebolehkerasan, kebolehkerasan dan kebolehkisaran, and should also have small oxidation, decarbonization sensitivity and quenching deformation cracking tendency.

 

  1. Forgetability

 

It has low resistance to hot forging deformation, keplastikan yang baik, julat suhu penempaan yang luas, low tendency of cold cracking and precipitation of network carbides.

 

  1. Annealing Processing

 

Julat suhu penyepuhlindapan spheroid adalah luas, kekerasan penyepuhlindapan adalah rendah dan julat turun naik adalah kecil, dan kadar spheroidizing adalah tinggi.

 

  1. Kebolehmesinan

 

Parameter pemotongan besar, low tool wear, low surface roughness.

 

  1. Sensitivity of oxidation and decarbonization

 

Apabila dipanaskan pada suhu tinggi, it has good antioxidant capacity, slow decarbonization speed, insensitive to heating medium and little tendency to produce pitting.

 

  1. Kebolehkerasan

 

Selepas pelindapkejutan, ia mempunyai kekerasan permukaan yang seragam dan tinggi.

 

  1. Kebolehkerasan

 

Selepas pelindapkejutan, a deeper hardening layer can be obtained, and it can be hardened by using a mild quenching medium.

 

  1. Cracking Tendency of Quenching Deformation

 

The volume change of conventional quenching is small, the shape warpage and distortion are slight, and the tendency of abnormal deformation is low. Conventional quenching has low cracking sensitivity and is insensitive to quenching temperature and workpiece shape.

 

  1. Kebolehgilingan

 

The relative wear of grinding wheel is small, the limit grinding amount without burn is large, and it is insensitive to the quality of grinding wheel and cooling conditions, so it is not easy to cause grinding damage and grinding cracks.

 

(3) Mold meets economic requirements

 

Ketahui lebih lanjut tentang proses kerja mesin pengacuan suntikan untuk mendalami hubungan antara acuan dan mesin pengacuan suntikan, the principle of economy must be considered to reduce the manufacturing cost as much as possible. Oleh itu, on the premise of meeting the service performance, the first choice is low price, carbon steel can be used instead of alloy steel, domestic materials can be used instead of imported materials. Sebagai tambahan, the production and supply situation of the market should also be taken into account when selecting materials. The selected steel grades should be as few as possible, concentrated and easy to purchase.

 

JasonMould Industrial Company Limited, ditubuhkan di 2010, adalah yang terkemuka Kilang acuan China. JasonMould pakar dalam pengeluaran acuan plastik untuk perkakas rumah, peralatan perubatan, peralatan elektronik, peralatan keselamatan dan juga sistem pemantauan.

The syarikat telah berakhir 15000 kilang meter persegi. Dengan bahagian alat suntikan plastik yang mempunyai jentera dan kepakaran yang berbeza, JasonMould menawarkan alat dari bahagian telefon bimbit kecil dan tepat hingga bahagian automotif. Alat kami terutama dieksport ke A.S., Eropah, Jepun dan UK. Strategi kepelbagaian dan perkhidmatan penuh JasonMould telah mendapat pujian daripada pelanggan di seluruh dunia.

Misi kami adalah untuk menyediakan produk dan perkhidmatan pengacuan berkualiti tinggi kepada pelanggan kami. Kami berhasrat untuk melebihi jangkaan harga pelanggan, kualiti dan penghantaran tepat pada masanya. Untuk mencapai misi kita, JasonMould:

  • Berkomitmen untuk terus meningkatkan kemahiran dan kecekapan pekerja,
  • Menyediakan pekerja kami persekitaran kerja yang bersih dan selamat,
  • Meningkatkan teknologi mesin dan peralatan sokongan melalui program penyelenggaraan yang ketat, dan
  • Mengekalkan perkakas pelanggan ke tahap prestasi tertinggi

Untuk maklumat lanjut Kos pengacuan suntikan China,sila lawati https://www.jasonmolding.com/

Hubungi Pertanyaan:

Hubungi orang: James Yuan

Nama syarikat: JasonMould Industrial Company Limited

Alamat: Kampung LongGang,Bandar LongXi,Daerah BoLuo,Bandar HuiZhou,Wilayah GuangDong, China

Telefon: 86-752-6682869

E-mel: [email protected]

Laman web: https://www.jasonmolding.com

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