English
русский
Insert pin of vengting design for molded parts
Insert pin of venting:
It is difficult to make exhaust slot when end runner is not in parting surface during injection, and there is no matching gap available, but we could make the venting pin at end of runner side, and also the exhasut slot will be connected with the air in outside as the venting system, there are some tips for making the insert pin as following:
1. The venting pin should fixed with the mold by H7/g6;
2. There should be an exhaust slot on the side of the venting pin and connect with the air (as shown in picture 1);
3. It will be used venting pin when air trapping position is fixed, but it will be better to use venting insert if the air trapping position is changing in local;
4. The sealing area of insert pin will be made according to the size of insert pin, and the length of sealing is 10-20mm, then it can clearance later;
5. The top of insert pin will make 3 snaps to make venting, and the depth is 0.02~0.05mm;
6. Insert pin is changed by injector pin.
Well-ventilated steel of venting design for molded parts
Mar 14, 2022Well-ventilated steel is a sintered alloy, iIt is a porous material sintered with spherical particle alloys, the pore size is 7-10μm and the strength is poor, but the texture is loose which allow the...view
Slider angle designing tips
Dec 4, 20231. Normally, all the insertion slopes of the slider are not allowed to be less than 3° to prevent excessive self-locking force and scratched; 2. The angle of the locking surface must be bigger than...view
Venting insert design of molded parts
Mar 13, 2022In the thin-walled cavity, the end of the melt flow, the bottom of the blind hole of the mold cavity, the end of the solid column of the plastic part, the bottom of the plastic part rib and screw...view
Design principles of plastic injection mold runner system
Jan 6, 20221. Quality first The design of the gating system has a big influence on part quality, firstly the gate should be set at the easiest part of the plastic part to be removed, and at the same time, the...view
Design standard of exhaust slot
Mar 3, 2022The exhaust system should ensure that the gas in the cavity is smoothly discharged, and also prevent the material from entering and exhausting channels from causing flashing of the product or blockage...view
Side gate of plastic injection mold runner system design
Jan 23, 2022In order to get the best injection quality, the gate type must be selected carefully, the coommon gate tyeps are: direct gate, side gate, pin-point gate, sub gate,valve gate of hot runner etc. Among...view