Category: Low Pressure Molding

How to Choose Low Pressure Molding Machine

How to Choose Low Pressure Molding Machine

Low pressure structural foam injection molding is a gentle injection molding process which makes use of polyamide or polyolefin hot melt adhesives that is designed as a feasible solution for sealing printed circuit boards, batteries and connectors and provides relief for cables. Now the key to the process is the consideration of raw materials and the specialized molding equipment used. It is always wise to talk to the supplier before doing the low pressure molding process regarding in-depth specifications for the machine. Well! There are some other factors which are necessary for deciding for machines and are discussed in brief below.

Mold

The mold should be fitted in the clamping area and this is determined by the spacing on the machine restricting mold fitting and removal. The height and depth of the mold should be accommodated well in the stroke of the clamp and there should be a sufficient opening in the stroke for ejecting the plastic component. For free fall ejection, daylight between platens must be greater than mold height and twice the depth of the component to be ejected.

Clamping Unit

The clamping unit should supply locking force so that mold stays tight during low pressure structural foam injection molding process, otherwise, the mold will be broken into parts and the molten material will splash out along the mold split line. Most of the times thin wall sections and deep draw depths require 3-4 tons per square inch, whereas thick wall sections and shallow draw depths require 2 tons per square inch. For calculating the locking force during low pressure molding these values can be multiplied by the projected area of the component.

Injection Unit

The injection unit is important in low pressure structural foam injection molding and must be capable of supplying component shot weight. The total shot weight should not go beyond the 90% of the injection capacity of the machine otherwise, there will be damage. Usually, the injection capacities are written in grams and whenever any other material needs to be processed, then that component shot weight should be recalculated using that material’s specific gravity.

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Things to Look for in Experts of Low Pressure Structural Foam Injection Molding

low-pressure-structural-foam-injection-molding

So, you have established a new manufacturing unit of molding processes? Right! Are you swamped with a lot of work pertaining to low pressure structural foam injection molding process? But you are not acquired with the right people to fill the positions and you are afraid of having the entire operation of low pressure molding will be at risk if the right workmen don’t turn up. Isn’t it? Don’t get panic because there are several things which are necessary to look out for while searching for experts who are specialized in low pressure molding and who are proficient enough to handle the tedious tasks easily. Well! Do read this blog as this will guide you on points which are necessary when looking for professionals.

Check for Ability

You are desperately searching for those who can do the task well and perform in a better manner following all the deadlines. Right! This is a good point to hunt as this is one of the most important factors which will directly affect the production and operation of parts and components emerge from low pressure structural foam injection molding process. So ensure that the professionals you are considering to hire have the required abilities to make the process run flawlessly.

Check for Training

Find out what type of training the experts have gone through earlier in low pressure structural foam injection molding process. Find out how that training can affect your manufacturing operation otherwise, a lot of inconsistencies can occur afterwards making the results futile. Hiring those who can work independently without relying on you for much training is a plus point to look for while making your decision.

Check for Experience

Determining the relevant experience of the professionals will not only assist in the operational work of the molding process, but their exposure in the field and skills will allow them to extend a better assistance to you in the progress of the manufacturing unit. Make sure that you work with the best and technically experienced technicians for the betterment of your production unit of the molding.

Following these points will surely help you in hiring the best technicians for your manufacturing unit.