This part is a custom plastic housing for electronics device base housing support. we made in in the 2015 years and have 3 years intellectual property protection. During the protection time , Asia Billion can't show the picture or samples to anybody. now it is due and we finally can show this part here. The part are made by engineering PC resin, it need MATT smooth finishing for the outside surface and without any visible defaults such as the black and white dots, ejector pin marks , parting lines and insert lines. If you have any plastic housing project, please contact us freely to give you a excellent offer.
Project details as below :
custom plastic housing for electronics
Core surface finish:
VDI 3400 21#
Cavity surface finish:
VDI 3400 24#
No of Cavities:
Type of gating:
edge gate with sprue cutter inside the mold
ejector stripper plate
718 with heat treatment
Lead time for production
Mold base steel:
yes, we send the mold to our USA customer
Production cycle time:
1) Critical important for the surface finishing, no any default for the outside and inside the plastic housing
2) Push out by ejector stripper plate and can't easily find the lines
3) Very strong and thick wall for the part design, No shrinkage marks or rib marks
4) You can't find the gating location because we use the inside mold gate automatically cutting technology when the injection holding pressure is finished within 2 seconds
5) Early supplier involve ( ESI) for production development due to lack of mechanical engineering capacity at customer side and Asia Billion help them for the custom plastic housing design main jobs
6) no welding line or flow marks for the holes
Asia Billion is a professional custom plastic housing manufacture for electronics in Shenzhen of China, we can help you develop your ideals from concept to mass production . we will always support you for your production development requirements all the time no matter it is small or big . If you have any plastic housing & enclosures production which need to develop , please contact us freely to realize your ideal.
Asia Billion advantages for this project:
1) very competitive price with high quality
2) new in-side mold gating cutting technology for the visible appearance parts, which can be used for film gate , edge cut and round cycle gate
3) we help to develop the production design with free cost
Asia Billion plastic housing Mould Making Process:
Asia Billion plastic housing mold Tooling shop Overview:
Asia Billion Injection Molding plant overview:
Asia Billion quality control:
Our Packing and Logistics:
738H pre-hardened plastic mold steel Introduce
738H is a common plastic injection mold steel , it is widelt used for many difference places , today Asia Billion will show you more details to help you understand this steel.
738H steel chemical composition: C: 0.30 Si: 0.30 Mn: 1.50 Cr: 2.00 Ni: 1.00 Mo: 0.20 P: 0.020 S: 0.003
738H feature application:
738H, using vacuum degassing and refining, the steel is pure and the structure is uniform. The hardness distribution of large section thick plates is very uniform. 738 die steel has excellent polishing and toughness, excellent hardenability and uniform distribution of large section thick plates. In addition, 738 mold steel has excellent processing performance, easy cutting, grinding and electric erosion. 738 mold steel is mainly used in large-scale plastic molds, such as refrigerators, air-conditioning molds, etc., as well as molds with high gloss finishing requirements such as hard rubber (PS) and ultra-tempering (ABS).
738 mold steel physical properties: temperature 20 ° C, 250 ° C ,500 ° C
Density kg/m3: 7800, 7750 ,7700
Elastic modulus N/mm2: 212000, 197000, 175000
The coefficient of thermal expansion is from 20 ° C to 106 / ° C: 11.6 ,12.8 ,14.3
Heat transfer coefficient W/m: C34.0, 33.5, 33.0
738 mold steel nitriding treatment:
Nitriding treatment can obtain a hard surface layer, increase the wear resistance and corrosion resistance of the material, and the hardness after nitriding in ammonia gas can reach 650HV.
Nitriding temperature (°C) time (h) concentration (mm)
525 20 0.29
525 30 0.36
525 60 0.50
Benefits of using 738H die steel:
738H mold steel adopts iron ore blast furnace steelmaking, refining outside the furnace, vacuum degassing, forging using three forging and three drawing, and other advanced steelmaking processes. The obtained 2738H material has high purity, good compactness, high hardness and uniformity, and smooth milling and milling. The hardness is up to HRC38°, the mold is difficult to collapse, the product will not be draped, and the die life is 13%; the material purity is high and the mold polishing is good. Available within 830mm.
738H mold steel applications:
738H mold steel is suitable for molds requiring high gloss uniformity such as production of hard rubber (PS) and ABS. Suitable for large-sized, especially thicker than 400mm, plastic molds with uniform hardness, high toughness and good surface finish; such as home appliances, TV shells, copier shells, bumpers, shock absorbers, instrument panels and other large molds; And trash can mold; die-casting mold base.
738H is a high wear-resistant pre-hardened plastic mold steel with a quality rating between P20 and 718. The domestic 2738H has six quality grades, and the price is even more strange. The price quoted by some merchants is so low that you doubt life. Everyone has a different mentality in doing business and different gestures. Low-cost suppliers are holding the mentality and gestures of doing business with you; high-priced suppliers are holding the mentality and gestures of doing business with you for a lifetime; different attitudes, you get different products and services.
Asia Billion is a professional Custom Plastic Housing For Electronics and mold manufacturer. We clearly understand the requirements of our customers and the performance of steel. We use high quality mold steels such as LKM 738H for our mass production products, and provide global Proof of traceable steel material. This is not a guarantee that unscrupulous merchants who often do ultra-low prices can do it. If you have any need for custom molds and injection molding products, please feel free to contact us!
Asia Billion Innovational Technology Ltd