Chair size: 580*460*800mm
Raw material: HDPE
Runner system: hot runner
Mold core steel: 718H
Mold cavity steel: 718H
Mold slider insert: DIN 1.2738 with nitriding
Core insert activation: two hydraulic cylinders
Cycle time: 40-50S
Here have a look at this mold testing
Key points of plastic chair mold
If the weight of the plastic chair is between 1700g-2400g, the cycle time should be 35S-50S.
2. Mould life
Most manufacturers will want its life to be 1 million mold times, then how can we guarantee this? The first thing we have to do is to check the hardness of the mold steel and the welded parts of the mold.
For us, we usually use HRC33 steel to make plastic chair molds.
3. Parting line
We must confirm whether the mold structure design is reasonable while ensuring the accuracy of each processing stage.
4. Wall thickness
The uniform injection and pouring of the product will cause sink marks and affect wall thickness. If the CNC milling is too rough, it will also affect the quality of the chair.
5. Check the stackability
When designing the plastic chair mold, we must analyze the stacking situation and consider the possible deformation of the product.
Plastic chair mold structure design
As a high-quality plastic chair mold, it not only needs to have good processing equipment and skilled mold manufacturing workers but also a very good plastic mold design, especially for complex plastic chair mold. Mold design accounts for over 80% of the quality of the mold. A good Plastic chair mold design: good quality, low cost, less difficult, and short delivery time. To achieve this, it not only needs to fully understand the customer request but also know the injection molding machine, plastic chair mold structure, mold machining process and plant capacity, etc. Therefore, to improve the mold design, we should do the following:
1. Understands the details in the design, the function of each component.
2. References to the previous similar design, understand its mold processing, learn the experience and lessons.
3. Understand the operation of the injection molding machine, the relationship between the plastic chair mold and injection molding machine.
4. Understand the processing of products and the characteristics and limitations of each processing.
5. Refer to the mold modification and trial result.
6. Understand the impact of the mold gate design on the products.
7. Study some special chair mold structures to understand the latest mold technology.