Product Introduction
Suntime Precision Mould has made many similar battery lids and boxes with different size. The surface is A-3 polish. T Here are many ribs inside in the battery lid and need to do very well in mould cooling so that the warpage can be controlled great. This product is used for Automotive industry. End customer is very happy with our quality and service, Suntime had the opportunity to visit them twice before Covid-19.Project information
| Appliance and Type | Automotive battery box and lid, plastic insert moulding | |||||
| Part name | Battery Lid | |||||
| Resin | PP | |||||
| No. of cavity | 1 Cavity and 2 cavities | |||||
| Mould Base | S50C | |||||
| Steel of cavity&Core | 738H | |||||
| Tool weight | 950 ~ 1450kg ( 10 sets moulds) | |||||
| Tool size | 450*600*500 ~ 450*800*500 | |||||
| Press Ton | 380 T | |||||
| Mold life | 500000 | |||||
| Injection system | Hot runner of mold master hot tips | |||||
| Cooling system | 25 ℃ | |||||
| Ejection System | Ejector pins | |||||
| Special points | A-3 polish，ultrasonic welding | |||||
| Difficulties | Warpage caused by different wall thickness | |||||
| Lead time | 4~5 weeks | |||||
| Package | Anti-rust Paper and film, little anti-rust oil and plywood box | |||||
| Packing items | Certification of steel, final 2D & 3D tool design, hot runner document, spare parts and electrodes… | |||||
| Shrinkage | ||||||
| Surface finish | Mirror polishing | |||||
| Trade terms | FOB Shenzhen | |||||
| Export to | Australia | |||||
Drawings
Suntime has very effective mold designers.For DFM, it can be finished within 1~2 days. Mold flow / 2D layout within 2~4 days. And 3D within 3~5 days depending on mold complexity.
Battery Box mold we made
2D Layout
3D mold design
3D mold design
Mold flow
With customers
Customers came to Suntime many times to check the tool making and moulding, and Suntime team has visited them twice in 2016 and 2019 before the Covid to provide technical support. After our customers' introduction, Suntime team knew more about the the working process of automotive battery production. And we have more knowledge and confidence to do better for them based on our years' experience.
More details
> We used Becu for the lead post area for better cooling. > One side of the parts is thin and another side is very thick, Suntime had to control very well for the molded part's deformation. > The battery lid is ultrasonic welding to battery box. > We prepare spare parts every time before mold shipping.
