문제 및 해결책

Q

Different axial/radial shrinkage rates of PTFE

A

The core of shrinkage defects lies in the contradiction between the volume change of material curing and insufficient process compensation, which needs to be comprehensively controlled through formulation optimization and process adjustment.

Molds & Tooling shrinkage rate PTFE preforming isostatic pressing

Q

Uneven distribution of filler in PTFE sintering

A

This problem needs to be comprehensively analyzed from multiple dimensions of material, process, equipment, and operation, and solved by systematically optimizing process parameters and the quality control system.

Molds & Tooling PTFE powder preforming density

Q

Temperature difference between mold and blank

A

Temperature control is a key parameter of the sintering '2079851475616104453; it is necessary to ensure that the temperature is accurate, uniform, and stable in order to guarantee the consistency of product quality.

Molds & Tooling mold temperature preforming powder

Q

Excessive demolding force of the preforming mold

A

Demolding problems need to be comprehensively solved from three aspects: mold surface treatment, release agent selection, and curing degree control.

Molds & Tooling demolding preforming powder

Q

Powder dampness causes sintering foaming

A

This problem needs to be comprehensively analyzed from multiple dimensions of material, process, equipment, and operation, and solved by systematically optimizing process parameters and the quality control system.

Material Drying powder sintering temperature PTFE preforming bubbles

Q

Hard shell effect caused by the internal-external temperature difference during sintering of large blanks

A

This problem needs to be comprehensively analyzed from multiple dimensions of material, process, equipment, and operation, and solved by systematically optimizing process parameters and the quality control system.

Processing Machinery sintering temperature caused by internal-external temperature difference during sintering of large blanks hard shell effect

Q

Excessive porosity of sintered products

A

This problem needs to be comprehensively analyzed from multiple dimensions of material, process, equipment, and operation, and solved by systematically optimizing process parameters and the quality control system.

Production & Quality preforming porosity powder

Q

Excessive creep deformation of PTFE products

A

Deformation problems originate from internal stress generated by uneven shrinkage or heating of various parts of the product, and need to be systematically solved from three aspects: structural design, process parameters, and post-processing.

Molds & Tooling PTFE crystallinity deformation

Q

Bubble holes appear in the product after sintering

A

The essence of this problem is that the gas is not effectively removed during the sintering '2079851475616104453, and it needs to be solved collaboratively from three aspects: degassing process, casting method, and venting design.

Material Drying preforming bubbles sintering temperature bubble holes powder

Q

Elastic recovery cracks appear in the PTFE preform

A

The essence of cracking is that the internal stress exceeds the strength limit of the material, and it is necessary to proceed from two aspects: reducing stress concentration and improving material toughness.

Extrusion & Post PTFE demolding preforming rebound powder

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