How important the raw material property document is！

When start to make a new mold, some customers don't sent the raw material property to their mold maker. Even though the raw material is rare use/customized, they still don't provide it.

Now I would like to show you some raw material property contents means to mold maker.

1.Acidity, Fiberglass and Mineral Reinforced

Verify if the mold cavity steels is qualified for this raw material.

2.Melt flow index

Help designer to design the mold runner, gate location and size.

3,Mold temperature

Affect to chose mold components. Such as;Insulation plate,Hot runner system,self lubrication components,Hydraulic cyclinder,O-Ring,water connector, lubrication oil,hydraulic oil ,limited switch,counter,and other electric components

Affect the mold trial condition

Affect to choose the right connecting pipes, heating/cooling device.

It will affect the melt flow,so it will cause the injection speed and pressure difference than normal,and it will cause relative defect

It will cause low quality of part property.

4,Melt temperature range, Decomposition temperature

Setting the barrel temperature which will affect the melt flow, so it will cause the injection speed and pressure difference than normal.

It would cause relative issues occur, such as high injection pressure cause high clamping force .If it over the machine, the flash will appears.

It will avoid melt decomposition which will cause the part property quality very low.

5.Drying temperature and Drying time

Choose the right drying device ,and set enough drying time

It will also affect the property and appearance of the part.

6, Density

It will help us to estimate the part weigh, so we have goal when we are in setting the packing phrase.

7,Shrinkage

we could check if the customer provide the shrinkage is in the range.

I just drawing out some affections, and you can notice that if the mold maker make wrong judge of the raw material ,it will has risk causing serious result.Such as: Replace the mold components, Measure wrong part and make wrong dimensions report ,Modify the mold with wrong reason, re-take mold trial, Affect the part property test, Cause relative accident by the low property quality.

 In my opinion ,once customers want to make a new mold, they need to make sure their mold maker know the raw material property first, then begin the project.As a mold maker,they also need to follow the raw material property to design the mold,set the right temperature for mold trial.

Kevin Liao（廖志文）

FSMOLD CO., LIMITED

E-mail:[email protected]

Tel:+86 13728928880