rough machining operations before or after heating

Some mould makers prefer to perform certain rough machining operations on the mould block before the mould undergoes normalizing heating, while others prefer to carry out the latter process immediately… Read more

injection molding machine operation

False Injection molding machine operation will cause poor quality, rejected Plastic parts, lessen machine life and the damaged screw. The following lists a detailed and comprehensive description of the standard… Read more

plastic runnerless molding

The definition of runnerless moulding is employed to explain any kind of mould tool in which a traditional cold runner and sprue will not be generated : Sprueless moulding Insulated… Read more

5 key points on how to dry plastic material

For many Plastic molding companies, how to dry material is an inevitable problem and engineering plastics especially need drying. The drying purpose is to make good quality products. The main… Read more

Design principle of ejection system

Design principle of ejection system Product ejection is the last step of the injection process, the ejection quality will directly affect the quality of the product, and design should follow… Read more

hotrunner system

hotrunner system of Plastic mold The ideal injection molding system delivers molded parts of uniform density free from runners, flash and gate stubs from every cavity, leaving no runners, sprues,… Read more

How to plastic molding

plastics molds Topworks Plastics Injection Molding is truly a comprehensive Plastic injection molding seller, an expert in Specialized in Plastic Manufacturing. We are an expert in plastic injection molding, warehousing… Read more

Gate Optimization

Aspects affecting ideal entrance dimension consist of components size, components quantity, filling speed, polymer attributes, and amount of gates. Entrance size controls packing ability. For appropriate packing, gates must stay… Read more

What is Injection mould design?

  What is Injection mould design? As to how to judge the quality of the mould, its 85% depends on the Plastic mould design. And the quality of mould design… Read more

Mould Finishing

Mould Finishing-Nearly all cavity and punch forms require a Finish to be applied to them. This may be a Polished finish, a photo-etched finish or a plated finish. However, for… Read more

Spin Welding,Solvent and Adhesive Bonding

Spin welding is utilized extensively to knit circular components with constant joints. Spin welding depends on frictional heat generated among fitting components, 1 spinning and 1 stationary, to melt polymer… Read more

custom mold and tool,mold making methods and process

Most of the time, the  start of mold making process is to choose conventional and right mould base and components which  can help to eliminate time and expense for the… Read more

Cracking,Delamination and Distortion

Cracking or Crazing This fault occurs only when there is residual stress in a moulding which may be affected by an aggressive environment. The term ‘aggressive,may be considered a misnomer… Read more

Ribs and Gusset,bosses of plastic mold design

When constructing ribs and gussets, it’s essential to adhere to the proportional thickness guidelines .In the event the rib or gusset is also thick in relation-ship towards the voids,component wall,… Read more

3 ways controlling the temperatures of injection mold

3 ways controlling the temperatures of injection mold Closed-Loop Command A temperature indicator, normally a thermocouple,calculates the temperature of the heaters or the hot runner channel. The positioning of the… Read more

Operation of Plastic Mold-3

Check points for the Plastic mold 1, parting surface.Regularly clean and keep no foreign body on that.the burr and scrape on the surface should be removed immediatly otherwise they will… Read more

Decorative vs Industrial or Hard Chromium Plating

Decorative vs Industrial or Hard Chromium Plating Chromium plating manifests itself in two commercial forms namely “decorative” and “industrial” or “hard” chromium plating. The nature, functions and purposes of the… Read more

Injection moulding process variables and their causes

Injection moulding process variables and their causes Variable Possible cause Injection pressure 1. Dirty oil; blocked filter 2. Faulty pump; cavitation 3. Faulty relief valve 4. Overheated or cold oil… Read more

quality mold

We know quality is the core of Plastic mold company. We have complete capability of the designing development and manufacture of the quality mold and fixture. We have rich technology… Read more

injection mold damage

It is safe to state that any given mold will require a certain amount of repair for damage occurring during the use or storage of that mold. The more it… Read more