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Home » Case Study » Injection Molded Parts for Plastic Board
Injection Molded Parts for Plastic Board
ACO Mold is an injection molding manufacturer located in Shenzhen China, making plastic injection mold and doing large volume injection molding production of plastic products for global companies. Recently, we made a set of injection molds, used for high volume injection molding of plastic board. The plastic board is used for writing. Below is basic information of injection molded plastic part and injection mold:
Basic part information
The surface finish of injection molding plastic parts was required to be smooth enough for writing but not glossy. Usually when ACO Mold do plastic parts with PS or PC resin, we go SPI-A finish, mirror polish, not SPI-B. But if customer makes the request, and just required to be smooth, then SPI-B1 is ok.
Before injection mold manufacturing, we usually firstly did DFM for manufacturability and product analysis, giving customer a great idea about parting line, gating method, ejection etc. After DFM was confirmed, we started mold design and ordered mold steel and mold base.
Then we made injection mold based on mold design drawings after design was approved. We cut steel, did CNC rough machining, CNC precision machining, mold fitting. We regularly reported mold manufacturing progress via sending customer photos or videos.
At the very beginning, PS material was required by customer. Since the plastic part is black, it is no necessary to use PC or PS, they are both for transparent part, and they are fragile. So we proposed to start plastic injection molding with ABS.
After injection mold was ready, we did T1 mold trial and sampling. We did T1 sampling with ABS material. Samples for free were shipped to customer for comments. Customer wanted to do next sampling with PC to see if any problems would arise. We produced two version types of samples at T2 sampling, the 3 pieces ABS+PC samples and 2 pieces PC samples. For ABS+PC samples, there were no flow marks and sink marks. For PC samples, because it has much lower melt flow rate, there were some flow marks and sink marks on the part surface. PC sample is just for a reference. Because of the lower melt flow rate of PC material, so the product is difficult to be full injection, and there will be some flow marks on the part surface. PC material product are usually used side gate design, so ACO Mold did not recommend using PC material, PC+ABS will have the same problems. At last, ABS was approved by customer to do injection molding.
ACO Mold can help with the shipping. We usually quote only EXWORK at the very beginning. We can also help customer to deliver the goods to door, DDU term.
If you are looking for China mold maker, welcome to ACO Mold. We are injection molding manufacturer with rich experience and good reputation in China. Engineers from ACO Mold will give you the best solution and recommend the suitable materials, helping you lead the market.
Basic part information
- Part size: 341.311*106.139*330.200mm
- Plastic material: ABS
- Finish: SPI-B1
- Color: Black
- Production volume: 1K
- Mold type: 3-Plate
- Gate type: Side-Gate
- Cavity number: 1X1
- Material: ABS
The surface finish of injection molding plastic parts was required to be smooth enough for writing but not glossy. Usually when ACO Mold do plastic parts with PS or PC resin, we go SPI-A finish, mirror polish, not SPI-B. But if customer makes the request, and just required to be smooth, then SPI-B1 is ok.
Before injection mold manufacturing, we usually firstly did DFM for manufacturability and product analysis, giving customer a great idea about parting line, gating method, ejection etc. After DFM was confirmed, we started mold design and ordered mold steel and mold base.
Then we made injection mold based on mold design drawings after design was approved. We cut steel, did CNC rough machining, CNC precision machining, mold fitting. We regularly reported mold manufacturing progress via sending customer photos or videos.
At the very beginning, PS material was required by customer. Since the plastic part is black, it is no necessary to use PC or PS, they are both for transparent part, and they are fragile. So we proposed to start plastic injection molding with ABS.
After injection mold was ready, we did T1 mold trial and sampling. We did T1 sampling with ABS material. Samples for free were shipped to customer for comments. Customer wanted to do next sampling with PC to see if any problems would arise. We produced two version types of samples at T2 sampling, the 3 pieces ABS+PC samples and 2 pieces PC samples. For ABS+PC samples, there were no flow marks and sink marks. For PC samples, because it has much lower melt flow rate, there were some flow marks and sink marks on the part surface. PC sample is just for a reference. Because of the lower melt flow rate of PC material, so the product is difficult to be full injection, and there will be some flow marks on the part surface. PC material product are usually used side gate design, so ACO Mold did not recommend using PC material, PC+ABS will have the same problems. At last, ABS was approved by customer to do injection molding.
ACO Mold can help with the shipping. We usually quote only EXWORK at the very beginning. We can also help customer to deliver the goods to door, DDU term.
If you are looking for China mold maker, welcome to ACO Mold. We are injection molding manufacturer with rich experience and good reputation in China. Engineers from ACO Mold will give you the best solution and recommend the suitable materials, helping you lead the market.
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