Top 7 Tips to Maintain the Custom Injection Mold

Plastic molding is critical in any injection molding industry as it is the backbone of many manufacturing processes. Companies have to maintain their custom injection mold frequently as it will help them make the perfect products at an affordable price. As custom injection molds are supposed to work under extreme temperature conditions, only the timely maintenance can increase this machinery’s lifespan and the products’ preciseness.

Why Should You Maintain the Custom Injection Mold?

To be more specific, the reasons why maintaining the mold are as follows:

● To reduce the abrasion of parts

Without maintenance, custom injection molds will get abrasive, resulting in a poor end product. An abrasive nozzle of the mold will not only impact the flow rate of the outgoing material but can also result in the adulteration of the plastic, eventually diminishing the quality of the manufactured products.

● To prolong the service life

Lack of regular or improper maintenance harms the custom injection mold itself, increasing the rate of cracking, deforming, or partial wear, reducing the mold’s lifespan. So, you have to do proper maintenance in order to increase the service life of your molds.

● To save extra expenses for a company

If your molds expire sooner than expected due to poor maintenance, it will be a major setback for any company. Thus, proper maintenance is the only way to increase the life period of any machine and save your company big money.


How to Maintain the Custom Injection Mold

Always take care of the following steps whenever you start your mold maintenance:

1. Clean the surface of the injection mold before installation

First of all, always clean the surface of the injection mold before installing it to ensure that no foreign matter is stuck to the surface. Any abnormality at the surface should be immediately removed as it will disturb every batch of the process otherwise.

2. Check all parts of the injection mold after production

You must ensure whether all the parts of the injection mold are being screwed properly or not after production. This is because any ignorance at this stage can even dismantle the machinery during working, which can have hazardous consequences.

3. Clean the injection mold after production

Once you are done with the production, clean every part of the machine to prepare it for the next batch. As injection molding is a batch process, this post-production cleaning is necessary to make the production of the next batch perfect. Without this, the next batch can get messy.

4. Provide rust removal regularly

Providing rust removals to your custom injection mold is crucial as the machine would be rusted otherwise. As the corrosion rate of the metal doubles with every 10-degree increase in the temperature, you must take this step seriously as plastic molding is a heat-intensive process. With so much heat involved in it, rust removal should be a routine activity.

5. Provide burr removal regularly

To make the manufacturing process smooth, you need to remove any dirt, burr, or plastic remaining in the injection molds. The formation of burr in the custom injection molds is normal, typically happening at the mold’s sharp edges. So, you must apply burr removal tactics in order to keep the process perfect.

6. Lubricate corresponding parts of the injection mold

Just like any other machine, lubrication helps custom injection molds as well. When you lubricate the corresponding parts of the injection mold, it minimizes any friction, excessive heat, and even the corrosion of the machine, resulting in a longer life span of the machine and precise injection products.

7. Replace or repair damaged parts

Whenever you see any damaged part in your custom injection mold, the first thing you have to do is to either replace that part or repair it. If you do not do that, the damaged part will destroy other parts of the machine. Worse, you cannot get the precise products in the presence of any damaged part, which makes their repair important.


ABERY’s Custom Injection Mold Meets Your Expectation

Abery brings highly precise injection molds that can be used in various applications. Even with tight tolerances of up to +/-0.001MM, the cycle time of these molds is short, increasing the working efficiency. Abery takes the detailed input of every client before manufacturing these molds, making our products custom injection molds in the true sense. We use LKM’s steel, which is one of the most qualitative steel manufacturers. We also provide high dimensional accuracy for products which makes us stand out from the crowd.

Wrapping Up

We at Abery are impacting the decisions of the global industries, as our injection molds are exported to the likes of Europe and America. Our in-house production team manages to inspire the global manufacturers by providing continuous high-profile molds needed for the success of any plastic molding business. Being a mold manufacturer that always pursues perfection, Abery believes that our rigorous designs and high-quality products can win every client’s trust.


Problem About Molding Flash & Flashing

Flash can occur during injection filling or during the pack/hold stage, and it can occur any kind of conventional parts ,especially easy happen of thin-walled parts with high MFI material . Discovering in when flash occurs helps to be responsible for the problem simplification . A simple test is to bring the pressure to the minimum the machine allows, Limitations lie is the plastic pressure should be below 500 psi . The aim is to see the effect of just barely filling the cavity. First step is injection fills 92% to 99.9% of the part, but the cavity is full then stop there. At the minimal pressure level we can easy to inspect If there is flash happen on the short shot,then we should do is focus on parameters adjust during injection. If no flash happen after a short shot, then we should go to another way to adjust the transfer point to avoid over-filling the cavity.

molding flash

When designing your plastic parts, as far as possible to reduce the thin-walled section, resulting in a thicker wall section, the entire product into a uniform wall thickness of the parts.

The rapid change in wall thickness is the most common cause of flash, due to the production process of plastic materials under pressure, through the liquid state to fill the injection mold.

If the product design in the thick and thin wall thickness of the part is necessary to exist, the use of different injection point to help the flow of materials.It is very important to control the location of the gate, especially in the tight tolerances of the plastic parts.

Flash of an injection molded part can happen for several reasons – slight variations in the material, pressure, speed, injection mold process and/or problems with the tooling itself.

For example,The sprue bushing is one of the reasons that can not be ignored.Need to know is that nozzle contact forces can range from 5 to 15 tons.If the thermal expansion makes the critical distance sleeve “growth” out of the parting line, the nozzle contact force enough to move the mold side, resulting in flash generation not only mold precision will produce flash operation,The operation of the injection molding is the same as the source of the problem, the mold should take advantage of the length of the hot runner bushing inspection, into the standard of each production.

Through analyze every stag of the injection molding process at our company, and ensuring consistent stress free manufacturing of your custom plastic parts.Our process engines allow us to produce tight tolerances parts for all of our customer.