문제 및 해결책

Q

Holographic Embossed Coating Disturbed by Micro Airflow During the Short Untouchable Period After Coating

A

This problem is a typical manifestation of holographic embossed coating disturbed by micro airflow during the short untouchable period after coating in coating. The core of the solution lies in ensuring the substrate surface condition, optimizing the rheological properties of the coating fluid, a...

Extrusion & Post incomplete curingcuring temperaturecuring timecuring agent ratioUV lamp

Q

Axial Stripe Memory Effect When Roller Coating Ultra-high Viscosity Coatings (≥5000 cP)

A

This problem is a typical manifestation of axial stripe memory effect when roller coating ultra-high viscosity coatings (≥5000 cP) in coating. The core of the solution lies in ensuring the substrate surface condition, optimizing the rheological properties of the coating fluid, and precisely contr...

Extrusion & Post roll surface wearhard impuritiesnatural wearroll surface protectionmetal detection

Q

Long-term Incompatible Corrosion Between Coating Head Metal Materials and Active Agents in the Coating Fluid (Such as Isocyanates)

A

This problem is a typical manifestation of long-term incompatible corrosion between coating head metal materials and active agents in the coating fluid (such as isocyanates) in coating. The core of the solution lies in ensuring the substrate surface condition, optimizing the rheological propertie...

Extrusion & Post long-term incompatible corrosion between coating head metal materials and active agents in the coating fluid (such as isocyanates)material

Q

Severe Shrinkage of Heat-sensitive Substrates (Such as Certain Degradable Plastics PLA) During Coating Curing

A

The essence of degradation yellowing is that the polymer molecular chains undergo chain scission and chemical changes under high-temperature and high-shear conditions. The core of the solution is "three controls": control the processing temperature within the material's recommended range, control...

Extrusion & Post degradation yellowingprocessing temperatureresidence timeheat stabilizerPVC dehydrochlorination

Q

Layered Curing of Thixotropic Coating Fluid in Static Pipes

A

The essence of incomplete curing is that the crosslinking reaction has not reached the designed conversion rate. The core of the solution is the precise matching of the three elements of "temperature + time + formulation": ensure that the curing temperature and time are within the recommended win...

Extrusion & Post incomplete curingcuring temperaturecuring timecuring agent ratioUV lamp

Q

Difficult-to-control Thickness of Electrostatic Powder Attraction Layer in High-speed Spraying (spray coating)

A

This problem is a typical manifestation of difficult-to-control thickness of electrostatic powder attraction layer in high-speed spraying (spray coating) in coating. The core of the solution lies in ensuring the substrate surface condition, optimizing the rheological properties of the coating flu...

Extrusion & Post spinning static electricityambient humiditystatic eliminationantistatic agentyarn guide material

Q

Micro-bubble Defects of Barrier Coatings (Such as PVDC) Under Humid and Hot Conditions

A

This problem is a typical manifestation of micro-bubble defects of barrier coatings (such as PVDC) under humid and hot conditions in coating. The core of the solution lies in ensuring the substrate surface condition, optimizing the rheological properties of the coating fluid, and precisely contro...

Extrusion & Post micro-bubble defects of barrier coatings (such as PVDC) under humid and hot conditions

Q

Post-curing Dark Reaction of UV-cured Coatings Causing Products to Become Sticky After a Long Time

A

The essence of incomplete curing is that the crosslinking reaction has not reached the designed conversion rate. The core of the solution is the precise matching of the three elements of "temperature + time + formulation": ensure that the curing temperature and time are within the recommended win...

Extrusion & Post product stickinessplasticizer migrationinsufficient coolinganti-blocking isolationambient temperature

Q

Edge Effect of Electrophoretic Coating (Electrophoretic Coating)

A

This problem is a typical manifestation of edge effect of electrophoretic coating (Electrophoretic Coating) in coating. The core of the solution lies in ensuring the substrate surface condition, optimizing the rheological properties of the coating fluid, and precisely controlling the curing proce...

Extrusion & Post edge effect of electrophoretic coating (Electrophoretic Coating)

Q

Substrate Follows the Sticky Roll and Is Back-wound Into the Machine During Roll Coater Operation

A

The essence of roll sticking is that the adhesion between the melt and the roll surface exceeds the separation force required for normal peeling. The solution approach is "cooling + angle adjustment + additives": lower the temperature of the roll to reduce adhesion, adjust the peeling angle to in...

Extrusion & Post roll sticking and wrappingexcessive roll temperaturepeeling anglelubricantroll surface coating

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