博文

目前显示的是 十二月, 2020的博文

Mould: Hole Design (six points)

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  Mould: Hole Design 1, There are holes or opening in plastic workpieces which used for a variety of purpose, such as assembly with other parts, decorate the workpiece or give it more eye appeal, or as ventilators and so om. Holes or openings can be defind as round, squre, rectangular, eliptical, etc, they may be classified as blind holes, through holes, step holes, recess step holes, and intersecting holes (FIG 2.18). Design of holes or opening of workpieces affect the construction of mould which leads to change the cycle time if holes or openings are deisgn incorrectly, the following machining may need for workpiece, and that also may cause the overall cycle to slow down and the high cost of mold manufactory. Holes can also affect workpiece integrity and strength due to the formation of knit lines or weld lines. 2, A hole in the workpiece, there is a core pin'in the mold correspondingly. Core pin Is commonly referred to as core pin shift. A general rule, holes design is that a wa...

PVC Pipe Fittings Mold

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  PVC Pipe Fittings Mold PVC pipe fittings Mould ( for high pressure and low pressure,for water supplying and water discharging) ,PVC is sometimes known as ‘Vinyl’ in Europe and predominantly so in North America. In Europe, ‘Vinyl’ usually refers to certain specific flexible applications, such as flooring, decorative sheets and artificial leather,This chlorine gives to PVC excellent fire resistance. Nowadays people start to use PVC for  pipe fitting ,because they are much cheaper and durable compared to metal ones,our field cover as follow: 1. CPVC pipe fitting for high pressure. 2. UPVC pipe fitting for water drainage 3. PVC belling pipe fitting mould( with collapsible cores for pressure water supply). 4. Electricity cable pipe fitting, built in-wall various PVC pipe fittings. The technical solutions for PVC pipe fitting moulding and PVC pipe fitting  mould manufacturing . PVC is a kind of special material which need special  injection molding process . The basic fe...

Injection Mold Tooling

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  Injection Mold Tooling As we know, if you want to produce a plastic product,you should make a injection mold tooling first.the mold is the key equipmemt for the shape.so let’s learn what the injection mold tooling is. The injection molding process uses molds, typically made of steel or aluminum, as the custom tooling. The mold has many components, but can be split into two halves. Each half is attached inside the injection molding machine and the rear half is allowed to slide so that the mold can be opened and closed along the mold’s parting line. The two main components of the mold are the mold core and the mold cavity. When the mold is closed, the space between the mold core and the mold cavity forms the part cavity, that will be filled with molten plastic to create the desired part. Multiple-cavity molds are sometimes used, in which the two mold halves form several identical part cavities. The mold core and mold cavity are each mounted to the mold base, which is then fixe...

Plastic injection Mold Check Procedure :9 steps

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  Plastic injection Mold Check Procedure · Mold surface is free of pits, rust, extra unused rings, water fitting, gas, other defect which affect the appearance of the hole, etc., · More than 1.5mm chamfer on all mould plates. · The cooling fitting should be upper than the mold surface,and is better to locate in unoperate side · Every lift ring should be marked their size if their weigh over 10 kg,or make sure the friendly use. · Make sure supporter is higher than blocks by 0.05-0.15mm. · All cooling should be marked “IN” and “OUT”,adding sequence number if needed, such as IN1, OUT1, IN2, OUT2. · Each plates should be marked with datum symbols and numbers ,position at 10mm away from the edge, writing should be clear, beautiful, neat, spacing evenly. · Small molds must have lifting holes in A plate and B plate, all plates of large mold must have lifting holes. · All four corners of the mold should have pry slot between two plates. Taizhou Heya Mould Co., Ltd specializes in manufactur...

CHINA QUALITY CHILDREN CHAIR MOULD SUPPLIER

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  CHINA QUALITY CHILDREN CHAIR MOULD SUPPLIER HEYA MOLD has designed and produced a series of children chair mould. As a high-quality chair mould moulding expert in China, HEYA MOLD  specializes in producin  children chair moulds with armrests, children chair moulds without armrests, plastic kids chair moulds and so on.  HEYA MOLD combines cartoon characters with chairs to supply beautiful, high-quality chairs with the best kids chair mould. Compared with ordinary chairs, children chairs are smaller, but require higher accuracy. HEYA MOLD not only provide you with injection part design, mould design and mould flow analysis of plastic children chair moulds, but also provide you with the best solutions for children chair moulds. As a Chinese children chair mould manufacturer, HEYA MOLD has been engaged in the customization and development of chair moulds for many years. For Any decorative holes in the chair, we will carefully analyze whether there is an...

THE MAIN POINTS OF PLASTIC CRATE MOULDING

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  THE MAIN POINTS OF PLASTIC CRATE MOULDING How to make  plastic crate ? What is the   plastic crate moulding process ? What are the factors that influence the moulding cycle? The time required to complete an injection moulding process is called the cycle time, also known as the moulding cycle. The cycle time of   plastic crate mould  directly affects productivity. The size accuracy and precision of the crates are affected by the time of holding pressure before the melting material is frozen at the gate. The holding time of the crate depends on the material temperature, mould temperature, the size of the main flow channel and the gate. If the dimensions and process conditions of the main channel and gate are normal, then the pressure value with the smallest fluctuation range of the crate shrinkage rate shall prevail. The cooling time of the crate mainly depends on the thickness of the crate, the thermal properties and crystallization properties of the plastic, a...

Basket Mold Manufacturing Experience

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Basket Mold Manufacturing As a professional basket mould factory in china, heya mold has produced many different types of plastic basket mould, such as shopping basket mould, laundry basket mould, storage basket mould, etc. Cooling and rapid prototyping are the key requirements of this kind of mould , we have accumulated some experience in many years of production. 1. Beryllium copper is used at the top of the core part of the plastic basket mould to increase the cooling effect, improve the quality of the basket and the production efficiency of the basket mould. 2. The plastic basket mould has many bumping holes. When designing the basket mould, the reasonable parting surface and R angle should be considered to avoid the phenomenon of bumping through holes and running edges. At the same time, the reasonable cooling channel are designed on both sides of the core and cavity to avoid the issue of welding line. 3. In terms of material selection of plastic basket mould, we generally recomme...

What are the surface treatment technologies for molds?

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  What are the surface treatment technologies for molds? Mold is one of the important foundations of modern processing industry. With the continuous development of mold forming and processing technology, the requirements for mold materials are getting higher and higher. In addition to the reasonable cooperation of the mold with sufficient strength and toughness, the surface properties of the mold are crucial to the working performance and service life of the mold. These surface properties are: abrasion resistance, corrosion resistance, friction coefficient, fatigue properties, and the like. These performance improvements, relying solely on the improvement and improvement of the matrix material, are very limited and uneconomical, and surface treatment techniques can often achieve twice the result with half the effort, which is why surface treatment technology has developed rapidly. The surface treatment technology of the mold is to systematically change the morphology, chemical comp...