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Q

ABS product brittle cracking——excessive regrind ratio

A

ABS regrind is not unusable, but the ratio and thermal history must be controlled; the improvement in fluidity is precisely a signal of molecular weight decrease; don't be fooled by 'easy to mold'——the performance account must be calculated with impact and tensile data.

Material Drying ABS；brittle cracking；regrind ratio；molecular weight；regenerated material

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Q

ABS vacuum void (shrinkage cavity)

A

For ABS bubbles, first distinguish 'vacuum void' from 'gas-containing bubble': bubbles that exist the moment the mold opens are mostly gas-containing (moisture), those that appear later inside are mostly vacuum voids; vacuum voids rely on compensation, gas-containing bubbles rely on venting; only...

Material Drying ABS；vacuum void；shrinkage cavity；holding pressure；compensation；thick wall

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Q

Internal bubbles in products caused by ABS water content

A

For bubbles, check water content first, then check temperature and venting; the order cannot be reversed.

Material Drying ABS；bubbles；moisture；drying；back pressure

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Q

Silver streaks (material bloom) caused by insufficient ABS raw '2079851475616104451

A

More than 90% of ABS silver streaks are moisture problems; check drying first before adjusting the process; water content not only produces silver streaks, but also catalyzes degradation and makes the product brittle, so drying is both an appearance gate and a performance gate, and must be manage...

Material Drying ABS；silver streak；material bloom；drying；moisture content；catalytic cracking

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Q

ABAK BASF NM-19

A

The supplier parameters of ABAK commercial grades are the process benchmark; following them ensures quality; verification ensures application.；after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Drying ABAK；BASF；NM-19；high flow；UV resistant；parameters

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Q

ABAK impact strength improvement

A

ABAK impact strength improvement depends on ratio and compatibilizer optimization; more ABS is not always better; testing verifies the actual improvement effect.; After confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence

Material Drying ABAK；impact strength；low temperature；ratio；compatibilizer；toughness

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Q

ABAK insufficient drying bubbles and silver streaks

A

ABAK drying management must be carried out according to the strict standards of the PA component; 4~6 hours is the alloy drying benchmark; moisture verification cannot be omitted.; After confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence

Material Drying ABAK；drying；silver streak；bubbles；moisture absorption；PA component

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Q

Electrostatic adsorption of powder during cold pressing causes inaccurate filling

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.

Material Drying powder，humidity，PTFE，cold pressing

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Q

Insufficient imidization of polyimide (PI) sintered parts

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.

Material Drying bubbles，polyimide，of sintered parts，insufficient imidization

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Q

Shadow curing defect appears in photo-curing lamination

A

The core of the poor curing problem is that the chemical reaction conditions do not meet the requirements; it is necessary to precisely control the formulation ratio and curing process parameters.

Material Drying fiber，photo-curing lamination occurrence，shadow curing defect

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