It is a plastic lens project for some low volume electronic scanning device for the IoT device. it is a very
high glossary plastic mould with A0 grade mirror polishing. because the parts are very low volume , so we make them in one family to save the mold and molding cost for our customer. Production volume is just 1K units per year and this mould are a SPI/SPE class 104 grade plastic injection mould too.
high glossary plastic mould
Core surface finish:
SPI A0 polishing
Cavity surface finish:
SPI A0 polishing
No of Cavities:
Type of gating:
Lead time for T1
PE film bags and Carton
1） Mirror polishing for the glossary finishing
2) No any mark for the parts included the ejector pin marks, flow mark and injection gate
3) The part need to pass the customer side light transmittance testing and reaction speed testing
4) Very low volume production with MOQ 1000 units per year
5) 1+1+1 family mold to save the production cost
Asia Billion Advantages for this project:
1） Amazing plastic injection mould price with high glossary finishing quality
2) 1 week less for the lead time than others
3) MOQ 1000 pcs are accepted by Asia Billion for mass production
4) Ejector pins at the runner and without demoulding defaults
Asia Billion high glossary plastic mould Process showing:
Asia Billion high glossary plastic mould Engineering and Project Capacity:
High glossary plastic mould Workshop Overview:
Packing and Logistics:
Factors affecting the surface polish ability of injection molds
(1) Surface condition of the work piece
During the machining process, the surface layer may be damaged by heat, internal stress or other factors, and improper cutting parameters may affect the polishing effect. The surface after EDM is more difficult to grind than the surface after machining or heat treatment. Therefore, the EDM should be finished before the end of EDM, otherwise the surface will form a hardened thin layer. If the EDM is not properly selected, the depth of the heat affected layer can be up to 0.4 mm. The hardness of the hardened layer is higher than the hardness of the substrate and must be removed. Therefore, it is best to add a rough grinding process to provide a good basis for polishing.
(2) Quality of steel
High-quality steel is a prerequisite for good polishing quality, and various inclusions and pores in the steel will affect the polishing effect. In order to achieve a good polishing effect, the work piece must be marked with the surface roughness of the polishing when starting the machining. When a work piece is determined to require mirror polishing, the steel with good polishing performance must be selected and heat treated. High polishing steel such as P20HH, NAK 80 and S136 steel. the S136 steel is a stainless mold steel with excellent polishing ability, it is sidely used for the high quality and mirror polishing project.
(3) Heat treatment process
If the heat treatment is not proper, the surface hardness of the steel is uneven or the characteristics are different, which may cause difficulty in polishing.
(4) Polishing technology
Since polishing is mainly done manually, human skills are still the main reason for the quality of polishing.
It is generally believed that the polishing technique affects the surface roughness. In fact, the good polishing technology is matched with the high-quality steel and the correct heat treatment process to obtain a satisfactory polishing effect. Conversely, the polishing technique is not good, even if the steel is good, the mirror effect is not achieved.
Asia Billion made a lot for plastic lens high glossary plastic mould and moulding project for many years with very low cost. we are the expert for the lens plastic part and precision injection moulding project . if you have some troubles with your projects for the lens or precision dimension control , please contact us directly.