Causes of metal liquid splashing during die casting process of die casting die:

1. The clamping between fixing dies is not tight and the clearance is large.

2. Insufficient clamping force

3. Die-casting machine, fixing plate is not parallel

4. The spanning of the supporting plate is large, and the injection force causes the deformation of the sleeve plate, resulting in spraying.

Adjustment method

1. Re-installing Die

2. Increase clamping force

3. Adjust the die casting machine to keep the moving and fixing plate parallel to each other.

4. Increase the stiffness of sleeve plate by adding support plate to the dynamic die.

The main factors affecting the service life of the pressure nozzle are as follows:

1. Material and quality of the indenter itself;

2. The fit clearance between the ejector and the ejector barrel;

3. Concentricity between the die and the ejector barrel during installation;

4. Cooling problem;

5. Selection of high-quality pressure head lubricants.

Zinc die casting blank can not see pits, before electroplating polishing there are pits, what is this? This is one of the most common problems in zinc die casting. Attention should be paid to:

1. Quality of raw materials (purity);

2. Refining degassing and slag removal during melting;

3. Adjustment of speed and pressure during die casting (especially defects such as subcutaneous blowhole);

4. When polishing, the pressure and temperature of friction should not be too high.

China's die casting enterprises are mainly concentrated in the Yangtze River Delta, Pearl River Delta, Beijing, Tianjin, Tang, Northeast Chongqing, Xi'an and other Western and northeastern regions.

In the production of automotive parts like shell, there are always grooves in the core-pulling place. What are the reasons?

1. Opening of gating system and overflow system;

2. Selection of die casting process parameters;

3. Quality of raw materials, etc.

How to check whether the zinc alloy die castings are qualified? And how to check after polishing? We have not been able to solve the problem of pitting and foaming after electroplating. We should start from the following aspects:

1. Pure raw materials;

2. Refining and slag removal should be carried out during smelting.

3. Strict die casting process (suggestion: lower die speed, higher pressure);

4. Attention should be paid to the quality of demoulding agents and other materials.

In addition, attention should also be paid to polishing and other processes. As for the inspection, we should focus on the defects such as internal pore and slag pore. After polishing, the surface should be carefully looked at, and some small points are easy to ignore.

What are the wear and tear of aluminium alloy during die casting? Another 104 aluminium die-casting used to plating bronze surface why there are bubbles? The loss of aluminium alloy materials in die casting process includes the following aspects:

1. Burning loss and volatilization in smelting;

2. Remove slag;

3. Burrs on the flying edge of die castings;

4. Burning loss and volatilization of remelting gate, cake and waste castings;

5. The weight of die castings increases due to machine tools, dies and other reasons. Foaming is caused by thermal expansion of subcutaneous pore in die casting. In the process of surface treatment, the temperature should not exceed 180 degrees Celsius, otherwise it is easy to foam.