What are the precautions for mold test before processing in injection mold processing plant?

The injection mold processing plant shall increase the mold temperature, select the appropriate mold temperature control machine according to the performance of the raw materials used for the products and the size of the plastic mold, and increase the mold temperature to the temperature required for production. After the mold temperature is increased, the action of each part must be checked again, because the mold clamping phenomenon may be caused by the thermal expansion of steel, so the sliding of each part must be injected to avoid taking over and vibration.


Injection mold trial and mass production in the future, use the same raw materials as much as possible. Do not complete the mold test with secondary materials. If there is a color demand, the color test can be arranged together.

Internal stress and other problems often affect secondary processing. After the plastic mold is tested, the mold shall be processed again when the product is stable. After closing slowly, adjust the clamping pressure and act several times to check whether there is uneven clamping pressure, so as to avoid burrs and mold deformation.


Confirm the mold temperature and the inlet and outlet water temperature of the water pipe. Before injection and after injection of 10 molds and 30 molds, measure the temperature at the inlet and outlet of each water pipe for three times. The temperature difference at the inlet and outlet of each water pipe should be no more than 3 degrees. If there is any difference, immediately check the water flow and whether it is connected incorrectly.


After the above steps are checked by the staff of the injection mold processing plant, reduce the mold closing speed and mold closing pressure, set the travel distance of the safety buckle and ejector, and then adjust the normal mold closing speed. If the limit switch of large stroke is involved, if the limit switch of large stroke is involved, the mold opening stroke shall be adjusted slightly shorter, and the high-speed mold opening action shall be cut off before the large mold opening stroke. This is because the high-speed action stroke is longer than the low-speed one during the whole mold opening stroke during the mold loading of the injection mold. On the injection molding machine, the mechanical ejector rod also needs to act after the full speed mold opening action to avoid the deformation of the ejector plate due to the force on the stripping plate.

If you want to know more about injection mold, injection molding and other related knowledge of Dongguan injection mold processing factory, you can log in to the official website of Dj molding, where there are various processing cases for reference, and look forward to your visit!


About Huizhou Dj Molding Co., Ltd

Dj Mold is a China mold maker of plastic molds- injection mold, die casting moulds, plastic blow molding, rotational molding, medical plastic injection molding, two shot plastic injection molding, insert molding, overmolding, metal injection molding, micro injection molding, powder injection molding, ceramic injection molding, liquid injection molding, husky injection molding, household mold, casting mold, die mold tool, custom molds, china moulds, rapid prototyping tooling, plastic prototyping tooling, punch press tooling, die and tooling for mobile/ cell phone parts, automotive parts, vacuum cleaners, rechargeable tools, telephones, copiers, computers, multimedia speakers, and many other electronic products and household appliances. And also a plastic product manufacturer, mold manufacturer China– plastic parts, plastic water tank, plastic balls, plastic containers, plastic buckle, plastic anchor, plastic hanger, plastic spoon, plastic pipe fitting, plastic tumble, plastic tableware, plastic cups, plastic bottles, plastic tray, plastic cosmetic container, plastic case, plastic food container, plastic chairs, plastic caps, plastic cap closure, plastic tubes, plastic water pipes, plastic knobs, plastic tubing, plastic utility boxes, plastic racks and so on.

Person: James Yuan
Company: Huizhou Dj Molding Co,. Ltd

Add:  LongGang Village,LongXi Town,BoLuo County,HuiZhou City,GuangDong Province, China
Tel: 86-752-6682869
Email: [email protected]

Site: https://www.jasonmolding.com/custom-injection-molding/

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