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how to improve the injection mold life

HOW TO IMPROVE THE INJECTION MOLD LIFE

It’s complicated to improve mold life consistency, as it depends on many factors. Such as mold design, hot runner quality, the cooling effect of mold steel, runner quality. A mold with short life and insufficient preciseness affects the quality of the part. It also proves huge material damage and labor waste. During the injection molding procedure, some plastic can decompose. This plastic can release corrosion gases. It also becomes a cause of mold damage and corrosion. Injection mold is the main tool. Mold quality and proper working have great effects on the finished part. It determines the quality of your

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Plastic Injection Mold Venting 1

Why Important Of PLASTIC INJECTION MOLD VENTING

There are different ways to avoid air and liquid getting trapped in your part. Any liquid in the feed is likely to cause problems. Trapped air can be from the moisture content of pellets. It can also be from the atmosphere. In processes where solvent polymerization gets used, air can be from residual solvent. Especially when the pellets are getting used right after polymerization (rare). The air gets trapped in the melted dough as the screw shears the melt. In other processes like simple liquid mixing air escapes by popping out of the liquid. With plastic melts, this is more

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burn marks in injection molding 2

What Causes Burn Marks and how to Improve it in Plastic Injection Molding-2?

Injection molding has the potential to achieve uniform identical parts. Thousands to million parts can get made using injection molding. With the high capital investment in machinery and tooling, efficiency is a watch ward. Inefficiencies in any aspect of injection molding lead to defects. These defects lead to losses in time and finance. Countless things can go wrong in injection molding. And one of such is burn marks appearing on the product. Because the burn mark is indicative of the presence of soot or degraded material. Recycling is not an option. Or at least it is not a good idea

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nissan 885309 1280

A Marriage of Necessity: Automotive Part Production and Plastic Injection Molding

Karl Benz built the first automobile in 1886. It was not until the Second World War that the plastic industry boomed. This means that we used to make cars from metal, steel to be precise. It also suggests that cars used to be clunky and consume a lot of fuel. We started seeing cars with plastic adornments back in 1970. A decade later we had cars with plastic headlights, fenders, and numbers. In the early 2000s, the production of plastic components for cars started peaking. Plastic is much lighter than steel. This led to the production of lightweight cars with

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Injection Mold Check List

Mold appearance and dimension The water connector type is correct? The hole clearance for the water connector is enough? The out edge of the hole needs chamfered and be constant. Mark the water lines with ‘IN,’ OUT’, and numbered clearly and tidily. e.g.INT1,OUT1. Oil connector or pneumatic connector need be numbered with prefix “O” or “G”,e.g. G IN1, O IN1. The screw thread of the water plug, oil plug, and gas plug meets the Tooling datasheet. Are there any components outside the mold surface? If so, the standoff should be installed. Do KO pattern and size meet requirements? The fixing

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what causes part sticking (mold adhesion)

What causes part sticking (Mold adhesion) or sprue sticking during injection molding

Ejection of product from the mold is often overlooked in injection molding. In the ideal case project ejection happens in an instance. It is also the final part of the process. This stage aims to get the product out of the mold. Seems simple enough. To ensure fast and effective product ejection, the ejectors must be well designed. Quite a lot goes into the design of the ejectors. The ejection of products gets considered in the mold design. Also in material selection and product design. The processing conditions also impact the effectiveness of the product release. When product ejection goes

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ldpe, lldpe,

WHAT’S THE DIFFERENCE BETWEEN LDPE, LLDPE, MDPE, HDPE, XLPE, AND UHMW SHEETING

Polyethylene belongs to the polyolefin group of polymers. Other polymers in this group are polystyrene and polypropylene. Polyethylene is the most well-used class of polymers in the industry today. This is owing to its being low cost and is available. It is also one of the most versatile plastics that gets used in a wide range of applications. Because in fact when one mentions the term polyethylene, it is very general. The term polyethylene can refer to different types of plastics. Not even all are thermoplastics. Of course in the common language. It refers to low-density or high-density polyethylene. But

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burn marks in injection molding

WHAT CAUSES BURN MARKS AND HOW TO FIX THEM IN PLASTIC INJECTION MOULDING?

Injection molding can’t be exempt without defects and errors. There are many rooms for expensive defects. Some defects are unrepairable, but some can fix. Many defects, as burn mark, can rectify with the help of troubleshooting tips and methods. Burn marks are common molding defects and appear as black and brown discoloration. They’re also known as gas trapped and dieseling effects in injection molding. Burn marks appear when air traps and they occur on the end of the flow path. During the mold filling stage, the gas trap causes ignition that becomes a reason for burn marks. It’s essential to

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part warpage

PART WARPAGE CAUSES AND SOLUTIONS IN INJECTION MOLDING

Warpage is one of the possible defects that can occur in injection molding. It results in the disfigurement of the product. A warped part most often renders the part useless and must get discarded or sent to regrind and recycle. The injection molding process occurs in cycles. These cycles get repeated day in day out during production time. Manufacturers aim to keep the cycle times as low as needed for product formation. They also aim to keep the time between cycles at the least. This is the idle time where no product is getting made. This is not desired. The

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injection molding of pmma

PMMA ACRYLIC INJECTION MOLDING PROBLEMS AND SOLUTIONS

Polymethyl methacrylate (PMMA) or acrylic is a well-established thermoplastic. It has come to be well known in the plastic industry. It is a good choice for clear plastic products. Often as a replacement for glass. At first sight, a clear PMMA product resembles glass. You’d have to know a bit more than average to differentiate between PMMA, Polycarbonate, and glass. Where polycarbonate is too expensive PMMA serves as a good alternative. This is true for parts where the properties of polycarbonate are not necessary. Examples of such are jewelry, plaques, aquariums, windows, and display pieces. The common term for glass

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or email direct:jerry@cavitymold.com

Ask For A Quick Quote And DFM!

We will contact you within 1 working day, please pay attention to the email with the suffix “@cavitymold.com”. 

or email direct:jerry@cavitymold.com

Get an instant quote from our most experienced consultants!

We will contact you within 1 working day, please pay attention to the email with the suffix “@cavitymold.com”. 

or email direct:jerry@cavitymold.com