문제 및 해결책

Q

Screw design mismatch of random copolymer polypropylene pipe special material extruder (Variant: mass production scenario)

A

The screw design needs to match the material characteristics and product requirements, and a special screw needs to be customized if necessary. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery screw design compression ratio L/D ratio mixing elements screw matching

Q

Bubbles/gas pores on the surface of random copolymer polypropylene pipe special material extruded products (Variant: mass production scenario)

A

Bubbles are caused by water vaporization or gas entrainment, and need to be solved from raw '2079851475616104451 and venting system. In different production scenarios, targeted preventive measures need to be taken.

Material Drying bubble gas pore raw '2079851475616104451 venting volatiles

Q

Screw design mismatch of random copolymer polypropylene pipe special material extruder (Variant: strengthened measures)

A

The screw design needs to match the material characteristics and product requirements, and a special screw needs to be customized if necessary. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery screw design compression ratio L/D ratio mixing elements screw matching

Q

Bubbles/gas pores on the surface of random copolymer polypropylene pipe special material extruded products (Variant: strengthened measures)

A

Bubbles are caused by water vaporization or gas entrainment, and need to be solved from raw '2079851475616104451 and venting system. In different production scenarios, targeted preventive measures need to be taken.

Material Drying bubble gas pore raw '2079851475616104451 venting volatiles

Q

Melt flow rate mismatch of raw materials for random copolymer polypropylene pipe special material extrusion (Variant: mass production scenario)

A

MFR mismatch needs to be solved by selecting suitable grades and adjusting temperature parameters. In different production scenarios, targeted preventive measures need to be taken.

Extrusion & Post melt flow rate grade selection extrusion grade process adjustment batch inspection

Q

Defects caused by insufficient drying before processing of random copolymer polypropylene pipe special material random copolymer polypropylene pipe special material (Variant: strengthened measures)

A

Insufficient drying is a common root cause of processing defects, and a sound drying system and moisture content inspection system need to be established. In different production scenarios, targeted preventive measures need to be taken.

Material Drying raw '2079851475616104451 moisture content silver streak bubble dehumidifying drying

Q

Melt flow rate mismatch of raw materials for random copolymer polypropylene pipe special material extrusion (Variant: strengthened measures)

A

MFR mismatch needs to be solved by selecting suitable grades and adjusting temperature parameters. In different production scenarios, targeted preventive measures need to be taken.

Extrusion & Post melt flow rate grade selection extrusion grade process adjustment batch inspection

Q

Improper selection of the processing temperature window for random copolymer polypropylene pipe special material random copolymer polypropylene pipe special material (Variant: strengthened measures)

A

The selection of the temperature window is the basis of processing, and needs to be reasonably set according to the material characteristics and actual operating experience. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery processing temperature temperature window plasticization quality material degradation temperature calibration

Q

Sharkskin appears on the surface of random copolymer polypropylene pipe special material extruded products (Variant: strengthened measures)

A

Sharkskin is the result of stick-slip flow of the melt at the die exit, and is improved by raising the die temperature and reducing the extrusion speed. In different production scenarios, targeted preventive measures need to be taken.

Extrusion & Post sharkskin melt fracture die temperature extrusion speed die polishing

Q

Random copolymer polypropylene pipe special material (Nordic standard） extruder die head pressure fluctuation

A

Die head pressure fluctuation is caused by unstable output or filtration system problems, requiring stabilization of extrusion parameters and maintenance of the filtration system.

Extrusion & Post pressure fluctuationfilter screendie head temperaturebreaker plateuniform output

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