Problem & Solution

Q

Scorched core but normal surface appears in PU flexible foam

A

Surface defects are the result of the combined action of mold condition, process parameters, and material formulation; it is necessary to systematically investigate each factor and optimize accordingly.

Molds & Tooling exotherm，flexible foam occurrence，scorched core but normal surface

Q

Toxic gas released during the foaming process

A

This problem requires comprehensive analysis from multiple dimensions of material, process, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.

Processing Machinery flame retardant，Toxic gas released during the foaming process，Process optimization

Q

Insufficient gram weight appears in EPS molding but appearance is acceptable

A

This problem requires comprehensive analysis from multiple dimensions of material, process, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.

Processing Machinery EPS，density，molding occurrence，insufficient gram weight

Q

Boiling phenomenon appears in PU rigid foam pouring

A

This problem requires comprehensive analysis from multiple dimensions of material, process, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.

Processing Machinery rigid foam pouring occurrence，boiling，phenomenon

Q

Cell burst appears in foamed products at low temperature

A

This problem requires comprehensive analysis from multiple dimensions of material, process, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.

Processing Machinery cells，foamed products at low temperature occurrence，cell burst

Q

Corrugated patterns appear on XPS extruded board

A

This problem requires comprehensive analysis from multiple dimensions of material, process, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.

Extrusion & Post extruded board occurrence，corrugated，Process optimization

Q

Blue discoloration/pink discoloration appears in foam products during use

A

This problem requires comprehensive analysis from multiple dimensions of material, process, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.

Processing Machinery catalyst，foam products during use occurrence，blue discoloration，pink discoloration

Q

Delayed foaming appears in self-foaming systems

A

This problem requires comprehensive analysis from multiple dimensions of material, process, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.

Processing Machinery self-foaming system occurrence，delayed foaming，Process optimization

Q

Unfoamed core layer appears in microcellular foaming

A

This problem requires comprehensive analysis from multiple dimensions of material, process, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.

Processing Machinery impregnation，bubbles，cells

Q

Chalking erosion appears in epoxy castings during outdoor use

A

This problem requires comprehensive analysis from multiple dimensions of material, process, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.

Processing Machinery epoxy，casting，epoxy castings during outdoor use occurrence，chalking

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