Chapter 17,Gate design overview

What is a gate? A gate is a small opening (or orifice) through which the polymer melt enters the cavity. Gate design for a particular application includes selection of the gate type, dimensions,and location. It is dictated by the part and mold design, the part...

Chapter 18, Gate types

Two categories of gates Gates can have a variety of configurations. They are classified into two categories- manually trimmed and automatically trimmed-based on the method of de-gating. Manually trimmed gates Manually trimmed gates are those that require an operator...

Chapter 19, Gate Design Rules

Essentials of a well-designed gate A properly designed gate will deliver a rapid, uniform, and preferably uni-directional mold filling pattern with a proper gate freeze-off time. Gate location The gate location should be at the thickest area of the part, preferably at...

Chapter 20,How Does Plastic Flow?

Design Example: Optimizing gates and ram speed profile Purpose of this example This example illustrates various aspects of the power of CAE software for the plastics industry, and how such software can be strategically applied. It shows how to put into practice many...

Chapter 21, Mold cooling system overview

Mold cooling system overview Importance of cooling system design Mold cooling accounts for more than two-thirds of the total cycle time in the production of injection molded thermoplastic parts. Figure 1 illustrates this point. An efficient cooling circuit design...

Chapter 22,Cooling-channel configuration

Cooling-channel configuration Types of cooling channels Cooling-channel configurations can be serial or parallel. Both configurations are illustrated in Figure 1 below. FIGURE 1. Cooling-channel configurations Parallel cooling channels Parallel cooling channels are...

Chapter 23,Alternative cooling devices

What do they do? Baffles and bubblers are sections of cooling lines that divert the coolant flow into areas that would normally lack cooling. Cooling channels are typically drilled through the mold cavity and core. The mold, however, may consist of areas too far away...

Chapter 24, Cooling system equations

Cooling time Theoretically, cooling time is proportional to the square of the heaviest part wall thickness or the power of 1.6 for the largest runner diameter. That is: where the thermal diffusivity of polymer melt is defined as In other words, doubling the wall...

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MOLD
Prototype parts
Plastic Part
silicone & rubber parts

 

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DONGGUAN SINCERE TECH CO.LTD
Factory Address:  37#, JiangXia Lu, YuanJiang Yuan Cun,Changping Town, Dongguan City, Guangdong Province, China, 523000

Tel: +86 (0)769-3366 9997

Fax: +86 (0)769-3366 9997

Email: info@sinceretechs.com

 

 

 

Mold Product


MOLD
Prototype parts
Plastic Part
silicone & rubber parts

Contact Us


DONGGUAN SINCERE TECH CO.LTD
FACTORY ADDRESS: YUANXIA LU, YUANJIANG YUANG, CHANGPING TOWN, DONNGUAN CITY,GUANGDONG PROVINCE, CHINA 523000

TEL: +86 (0)769 3366 9997
FAX: +86 (0)769 3366 9997

EMAIL: INFO@sinceretetechs.com

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Chapter 17,Gate design overview

What is a gate? A gate is a small opening (or orifice) through which the polymer melt enters the cavity. Gate design for a particular application includes selection of the gate type, dimensions,and location. It is dictated by the part and mold design, the part...

Chapter 18, Gate types

Two categories of gates Gates can have a variety of configurations. They are classified into two categories- manually trimmed and automatically trimmed-based on the method of de-gating. Manually trimmed gates Manually trimmed gates are those that require an operator...

Chapter 19, Gate Design Rules

Essentials of a well-designed gate A properly designed gate will deliver a rapid, uniform, and preferably uni-directional mold filling pattern with a proper gate freeze-off time. Gate location The gate location should be at the thickest area of the part, preferably at...

Chapter 20,How Does Plastic Flow?

Design Example: Optimizing gates and ram speed profile Purpose of this example This example illustrates various aspects of the power of CAE software for the plastics industry, and how such software can be strategically applied. It shows how to put into practice many...

Chapter 21, Mold cooling system overview

Mold cooling system overview Importance of cooling system design Mold cooling accounts for more than two-thirds of the total cycle time in the production of injection molded thermoplastic parts. Figure 1 illustrates this point. An efficient cooling circuit design...

Chapter 22,Cooling-channel configuration

Cooling-channel configuration Types of cooling channels Cooling-channel configurations can be serial or parallel. Both configurations are illustrated in Figure 1 below. FIGURE 1. Cooling-channel configurations Parallel cooling channels Parallel cooling channels are...

Chapter 23,Alternative cooling devices

What do they do? Baffles and bubblers are sections of cooling lines that divert the coolant flow into areas that would normally lack cooling. Cooling channels are typically drilled through the mold cavity and core. The mold, however, may consist of areas too far away...

Chapter 24, Cooling system equations

Cooling time Theoretically, cooling time is proportional to the square of the heaviest part wall thickness or the power of 1.6 for the largest runner diameter. That is: where the thermal diffusivity of polymer melt is defined as In other words, doubling the wall...

Mold Product


MOLD
Prototype parts
Plastic Part
silicone & rubber parts

 

Contact Us


DONGGUAN SINCERE TECH CO.LTD
Factory Address:  37#, JiangXia Lu, YuanJiang Yuan Cun,Changping Town, Dongguan City, Guangdong Province, China, 523000

Tel: +86 (0)769-3366 9997

Fax: +86 (0)769-3366 9997

Email: info@sinceretechs.com

 

 

 

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