Molding Supplier in China

“What kind of materials can be used in plastic injection molding?”

PLASTIC INJECTION MOLDING

什么是塑料注塑工艺？

这个过程类似于金属铸造的过程。在此过程中，将熔融塑料注入压力下并保持直到冷却为止。一旦变成坚固，将打开模具并取出塑料铸件。塑料注射成型是一种极其通用，精确，快速和廉价的质量生产塑料产品的方法。

What materials can be used?

This process mainly uses both thermoplastics and thermoset plastics, each of which have their own advantages and limitations. The primary difference between the two is that thermoplastics can be melted back into liquid form or recycled while thermoset plastics cannot.

热塑性塑料

优点：Recyclable, cost efficient (because waste during manufacturing process can be reused), increased impact resistance because of flexibility.

缺点：降低热量和耐化学性（它们更快地降解）。

Thermoset

优点：更高的化学和热电阻以及更高的机械强度和尺寸稳定性。

缺点：Cannot be recycled, lower impact resistance. Also, thermoset plastics are more difficult to work with so you might find it difficult to find suppliers for them.

What will I need in terms of design input?

We must have 3D files in步或者IGESformats.

Where in China can you find plastic injection molding factories?

Depending on what kind of plastic you want to use for your product, these suppliers can be found all around China. Different factories have different quality levels and expertise. It is wise to work with adependable China sourcing agent. The agent will find factories, evaluate them and manage production with onsite visits.

How much does tooling cost?

It can cost from a few thousand dollars for simple tooling to hundreds of thousands for more complexmulti-cavity tools.

How long does tooling last?

It depends on the material, but most likely 200,000 pieces is not a problem.

工具的平均交货时间是多少？

15天到三个月，具体取决于复杂性。

Do plastic injection molding products or their tooling need any final finishes?

It is not unusual for injected parts to need final machining. This may also include addition of inserts (that can also be inserted during casting) or threads cutting. Final surface finishes may also be needed such as powder coating or paint application. Sometimes, under some circumstances the tool itself may need a special surface texture added, which will imprint on the final injected parts. For instance, a brand name forpremium skincare products.

What are the pros and cons of plastic injection molding?

优点：

Consistent measurements.

Quick production rate.

Low cost per unit.

Good surface finish.

Products can often be recyclable.

Manufacturing process can be quite cheap because scrap can be recycled/reused.

Cons

Tooling cost.

Warpage and shrinkage.

Somethermosetting plastics不能回收或橡胶。

再生材料的性能不如新材料。

What are the known challenges of the plastic injection molding process?

Some suppliers will use recycled material without telling you. Material type used is critical if you are looking for specific physical properties or performance. Additionally, shrinkage can be problematic across larger surface areas.

Sourcing Allies is a team of expert China sourcing agents that has helped western customers manufacture and source products from low-cost regions since 2006.

有关更多信息plastic injection molding访问啊urwebsite或者write to us atinfo@sourcingallies.com.