NEWS CENTER

Vacuum Die Casting Technology

2018-01-08 14:43

Vacuum die casting is a way of forming vacuum state by using auxiliary equipment to remove air from the die casting cavity, and to form the metal hydraulic casting in vacuum. The main characteristics

Vacuum die casting is a way of forming vacuum state by using auxiliary equipment to remove air from the die casting cavity, and to form the metal hydraulic casting in vacuum.
 
nuowei
 
The main characteristics of vacuum die-casting are as follows:
(1) eliminate or reduce the porosity in the die castings, increase the density of the die castings, improve the mechanical and surface quality of the die castings, improve the plating performance and make the die castings heat treated.
(2) The air extracted from the cavity of the die-casting mold significantly reduces the back pressure of the filling, and the lower injection pressure (about 10% to 15% lower than the usual injection pressure) can be used to improve the strength of the die-casting The wall thickness is reduced by 25% to 50%.
(3) The pouring system and the exhaust system can be reduced.
(4) In a modern die-casting machine, it is possible to draw the required vacuum within a fraction of a second.With the decrease of the reverse pressure in the die casting cavity, the broom speed of the castings is increased and the time of the die casting in the die casting die is shortened.Therefore, the use of vacuum die-casting can improve the productivity of 10%-20%.
(5) The sealing structure is complex, the manufacturing and installation are difficult, the cost is high, and it is difficult to control.

Other news

Gravity casting series mold design and product processing

2023-09-14 12:41

Summarize: 1. Before processing, it is necessary to detect the hardness of the body, stretch the test rod, and confirm that it is qualified before processing 2. Castings are tested for Brinell hardness according to ISO 6506-1, and the control range is above 85HB 3. The castings have been inspected by radiographs and conform to the third-level standard of ISO10049 4. The thickness of the coating must be 80-100 microns 5. Castings are subjected to salt spray test for 24 hours according to is09227 / astm b117, to ensure that no red rust is observed at the end of the salt spray test, once for each batch The spray masking tool needs to be re-customized

See more information
< 1234...36 > proceed page

HEADQUARTER ADD

904-905, China-base Building, No.666, Tiantong South Road, Ningbo 315100, China

AUTOMOTIVE DIVISION Add

NO. 45, Baofeng Road, Eastern Suburb Development Zone, Fenghua 315500, China

ALUMINUM FORGING DIVISION ADD

Shaojiadu Street, Linhai City,Zhejiang Province 317000, China

INNOVAW LPDC/GPDC division

No. 288, Fengchuan Avenue, Tonglu, Hangzhou, Zhejiang, China

Copyright 2022 Inc. All rights reserved.