Question 1

Bakelite injection molding Why does the mold need to be heated?

Accepted Answer

* * Q: Why does Bakelite injection molding need to be heated and ordinary injection molds need to be cooled? * * Answer: Th

Question 2

What is the difference between electric wood injection molding and ordinary plastic injection molding?

Accepted Answer

* * Q: What is the difference between electric wood injection molding and ordinary plastic injection molding? * *Answer:There are

Question 3

What is electric wood injection molding?

Accepted Answer

* * Q: What is Bakelite injection molding? * *Answer:Bakelite injection molding refers to the process of using bakelit

Question 4

Q: What is the difference between liquid silicone encapsulation and solid silicone encapsulation?

Accepted Answer

Answer: The main differences between liquid silicone encapsulation and solid silicone encapsulation lie in raw material form and molding process: liquid silicone has good fluidity, uses injection molding, has high automation and production efficiency, suitable for mass production, with good product precision and consis...

Question 5

Q: How do I extend the service life of a liquid silicone mold?

Accepted Answer

Answer: To extend the service life of a liquid silicone mold, pay attention to the following: 1. Clean residue promptly after use to prevent accumulation and curing inside the mold; 2. Store in a cool, dry, and ventilated place away from direct sunlight; 3. Avoid sharp objects scratching the mold surface; 4. Avoid prol...

Question 6

Q: Why secondary vulcanization after liquid silicone molding?

Accepted Answer

Answer: Secondary vulcanization is a common post-treatment process after liquid silicone molding. Its main functions are: first, to complete the vulcanization reaction thoroughly, bringing the physical properties of the silicone to their optimal state; second, to remove small molecule compounds generated during vulcani...

Question 7

Q: Can liquid silicone products be put in the dishwasher for cleaning?

Accepted Answer

Answer: Qualified food-grade liquid silicone products can absolutely be cleaned in a dishwasher. Liquid silicone itself has excellent high and low temperature resistance and stable chemical properties. The water temperature in a dishwasher is generally around 70-80 degrees Celsius, which will not affect the silicone. M...

Question 8

Q: Why vacuum defoaming before liquid silicone molding?

Accepted Answer

Answer: Vacuum defoaming before liquid silicone molding is a very necessary step. During the mixing process of two-component liquid silicone, some air can be entrapped. If defoaming is not performed, this air will remain inside the molded product, forming bubble defects that affect product appearance and performance. V...

Question 9

How to extend the service life of liquid silicone molds?

Accepted Answer

Proper use and maintenance can effectively extend the service life of liquid silicone molds. Here are some practical tips:1. Proper storage- Clean the mold after use and place it in a dry, ventilated area- Avoid heavy pressure to prevent mold deformation&

Question 10

Why does liquid silicone encapsulation degum?

Accepted Answer

Liquid silicone encapsulation products experiencing degumming issues are mainly caused by the following reasons:1. Improper substrate surface treatmentThis is the most common cause. If the substrate surface has oil, dust, or has not undergone proper surface activation treatment, the silicone...

Question 11

Is food-grade liquid silicone safe?

Accepted Answer

Qualified food-grade liquid silicone is very safe and can be used with confidence.Safety is mainly reflected in the following aspects:1. Non-toxic and odorless: High-quality food-grade liquid silicone does not contain toxic or harmful substances, does not release odors, and meets food contac...

Question 12

Why does liquid silicone forming create bubbles?

Accepted Answer

The occurrence of bubbles in liquid silicone molded products is a common problem in production. The main causes of bubbles are as follows:1. Insufficient raw material defoamingDuring the mixing process of liquid silicone A and B components, air can be mixed in. If adequate vacuum defoaming i...

Question 13

What is the difference between liquid silicone and solid silicone?

Accepted Answer

Liquid silicone and solid silicone are the two most commonly used materials in silicone product manufacturing. They have certain differences in physical form, molding process, and performance characteristics.1. Different physical forms- Liquid silicone: It is in a flowing liquid state when s...

Question 14

Why are there bubbles after liquid silicone molding?

Accepted Answer

Bubbles in liquid silicone molded products are mainly caused by the following reasons:1. Insufficient defoaming: Air is mixed in when the A and B components are combined, and vacuum defoaming was not performed or the defoaming time was insufficient.2. Poor mold venting: The mold vent design ...

Question 15

Can liquid silicone products come into contact with food?

Accepted Answer

Food-grade liquid silicone can safely come into contact with food.Qualified food-grade liquid silicone raw materials need to pass FDA food contact certification and LFGB certification, meeting food contact safety standards. After vulcanization molding, they are non-toxic and odorless, and can safely conta...

Question 16

What is the reason for the poor adhesion of the liquid silicone coated plastic?

Accepted Answer

Poor adhesion between liquid silicone and plastic is generally caused by the following reasons:1. Unclean plastic surface: Oil or mold release agent residue on the surface affects adhesion. Proper cleaning is required.2. Incorrect primer: Different plastic materials require different adhesio...

Question 17

What is liquid silicone molding?

Accepted Answer

Liquid silicone molding refers to the molding process that uses liquid silicone rubber as raw material, injecting the material into a mold through injection molding, casting, and other methods, and then heating and vulcanizing it to crosslink into elastic silicone products.Liquid silicone has good fluidit...

Question 18

What is the difference between liquid silicone and regular solid silicone?

Accepted Answer

The main differences are in several aspects:1. Different forms: Liquid silicone is in liquid state when shipped, mixed as A and B components before use; solid silicone is in solid form and needs to be compounded before use.2. Different molding processes: Liquid silicone generally uses inject...

Question 19

Which is better, liquid silicone or solid silicone?

Accepted Answer

Neither is absolutely better; it depends on your product application and production scale.Liquid silicone is suitable for automated injection molding, with high production efficiency, suitable for complex thin-walled products, and good dimensional accuracy, but the material price is slightly higher and in...

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