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Home > products > Energy Saving Injection Molding Machine > Plastic Soapbox Mold Making Energy Saving Injection Molding Machine Thermoplastic Type

Plastic Soapbox Mold Making Energy Saving Injection Molding Machine Thermoplastic Type

Product Details

Place of Origin: CHINA

Brand Name: HAIJIA

Certification: CE ISO9001

Model Number: HJF 240

Payment & Shipping Terms

Minimum Order Quantity: 1 set

Price: Negotiation

Packaging Details: Standard Export Package for Injection Machine

Delivery Time: 20-30days

Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability: 100 Set/Sets per Month

Get Best Price
Highlight:

all electric injection molding machines

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plastic products making machine

Voltage:
Customed Avaiable
Used For:
Plasic Products
Motor:
Servo & Standard & Variable Pump
Keyword:
Energy Saving
Warranty:
18 Months
Plastic Type:
Thermoplastic
Certification:
CE ISO9001
Voltage:
Customed Avaiable
Used For:
Plasic Products
Motor:
Servo & Standard & Variable Pump
Keyword:
Energy Saving
Warranty:
18 Months
Plastic Type:
Thermoplastic
Certification:
CE ISO9001
Plastic Soapbox Mold Making Energy Saving Injection Molding Machine Thermoplastic Type

Plastic Soapbox Mold Making Energy Saving Injection Molding Machine Thermoplastic Type 0

1. Treatment of plastics

Because PET macromolecule contains lipid group, it has certain hydrophilicity. Particles are sensitive to water at high temperature. When the moisture content exceeds the limit, the molecular weight of PET decreases and the products become colored and brittle.

Therefore, before processing, the material must be dried, its drying temperature is 150 C, more than 4 hours; generally 170 C, 3-4 hours. It can be used to check whether the material is completely dry. The proportion of recycled PET bottle blank should not exceed 25%, and the recycled PET bottle blank should be thoroughly dried.

2. Selection of Injection Molding Machine

Because of the short time of stabilization after melting point and the high melting point of PET, the injection system with more temperature control section and less self-friction heat generation during plasticization should be selected, and the actual weight of the product (water-containing orifice) should not be less than 2/3 of the injection volume of the machine.

3. Mould and gate design

PET bottle embryo is usually formed by hot runner mould. It is better to have a heat insulation plate between the mould and the injection machine template. The thickness of the heat insulation plate is about 12 mm, and the heat insulation plate must be able to withstand high pressure. Exhaust must be sufficient to avoid local overheating or fragmentation, but the exhaust outlet depth should not exceed 0.03mm, otherwise it is easy to produce flash.

4. Melt temperature

It can be measured by air irradiation method, ranging from 270 to 295 degrees C, and the enhanced grade GF-PET can be set to 290 to 315 degrees C.

5. Injection speed

Generally, the injection speed should be fast to prevent premature coagulation during injection. But too fast and high shear rate make the material fragile. The projectile is usually completed in 4 seconds.