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How To Design The Gate Of Injection Mold?
Original: | Author: Jasmine HL of DGMF | Publish Time: 2016-12-28 | 12826 Views | Share:
The design of the gate is related to the size of the plastic part, the shape of the mold structure, the injection process conditions and the performance of the plastic part. But as far as the basic function is concerned, the cross section of the gate should be small and the length should be short, because only in this way can it meet the requirements of increasing the flow rate, fast cooling and sealing, easy separation of plastic parts, and minimum gate residue.

How to design the gate of injection mold?--dgmf mold clamps co., ltd

The design of the gate is related to the size of the plastic part, the shape of the mold structure, the injection process conditions and the performance of the plastic part. But as far as the basic function is concerned, the cross section of the gate should be small and the length should be short, because only in this way can it meet the requirements of increasing the flow rate, fast cooling and sealing, easy separation of plastic parts, and minimum gate residue.

Requirements for gate location

Appearance requirements (gate traces, weld lines)

Product functional requirements

Mold processing requirements

Warpage of the product

Gate capacity is not easy to remove

Easy to control molding process

2. Impact on production and function

The flow length determines the injection pressure, clamping force, and the shortening of the full flow length when the product is not filled can reduce the injection pressure and clamping force.

The position of the gate will affect the holding pressure, the size of the holding pressure, and whether the holding pressure is balanced. Keep the gate away from the product's stressed position (such as the bearing) to avoid residual stress. The gate must be vented to avoid accumulated wind. If it happens, do not place the gate on the weak or embedded part of the product to avoid deviation.