Customization of ABS Plastic Parts, PP Plastic Parts and PC Plastic Parts

I. Material Properties and Application Scenarios

1. Customization of ABS Plastic PartsABS plastic part customization relies on the comprehensive performance of acrylonitrile-butadiene-styrene copolymer, featuring excellent rigidity, toughness and processing fluidity. Its shrinkage rate is stably maintained at 0.4%-0.7% with a notched impact strength of ≥20kJ/m², making it suitable for customizing products with complex structures and exterior surfaces. It is widely used in household appliance casings, electronic device enclosures and automotive interior parts, especially for customization requirements that demand dimensional stability and surface finish. Through modification treatments such as flame retardancy and antistatic processing, its application can be extended to the customization of industrial instrument casings.

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3. Customization of PP Plastic PartsCentered on polypropylene material, PP plastic part customization offers advantages including low density (0.90-0.91g/cm³), strong chemical corrosion resistance and a heat distortion temperature of 100-120℃. With a shrinkage rate of 1.5%-2.5% and excellent fluidity, it is suitable for molding thin-walled parts. Typical application scenarios cover automotive bumpers, medical syringe components and household daily necessities casings. It occupies an important position in the customization of food-contact plastic parts due to its non-toxic property. After glass fiber reinforced modification, it can be applied to the customization of automotive structural parts.
4. Customization of PC Plastic PartsPolycarbonate material for PC plastic part customization boasts high transparency (light transmittance ≥88%), high strength (tensile strength ≥60MPa) and impact resistance. The molding temperature needs to be controlled at 260-320℃ with a mold temperature of 80-120℃ to reduce internal stress. It is suitable for customizing medical device casings, transparent parts of electronic equipment and automotive lamp shades. It is irreplaceable in the customization of precision plastic parts that require both impact resistance and light transmittance. The processing performance can be optimized through alloy modification such as PC+ABS.

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II. Core Processes and Parameter Control

1. Basic Process of Injection MoldingInjection molding serves as the core process for the customization of all three types of plastic parts, with the workflow consisting of: product structure analysis → mold design and manufacturing → raw material preprocessing → parameter debugging → mold testing and production → mass delivery. Mold design must adhere to the principle of "uniform filling and adequate cooling". The misalignment accuracy of the parting surface should be ≤0.05mm, and 3D-printed conformal cooling channels can be adopted for complex structures to improve efficiency.
2. Material-Specific Process PointsFor ABS plastic part customization: the material temperature is 220-260℃, injection pressure is 80-120MPa, and a mold temperature of 50-80℃ can reduce internal stress. Side gates or pinpoint gates are preferred to ensure exterior quality. For PP plastic part customization: the material temperature is 170-220℃, injection pressure is 60-100MPa, and mold temperature is 30-60℃. The filling speed for thin-walled parts can be appropriately increased to ensure molding integrity. For PC plastic part customization: strict temperature control is essential to avoid material degradation. The material temperature is 260-320℃, injection pressure is 100-140MPa, and annealing treatment is required after molding to eliminate residual stress. The depth of the venting groove should be controlled at 0.02-0.05mm.
3. Key Points for Mold Design AdaptationMold material selection must match material properties: molds for PC plastic part customization require mirror polishing (Ra≤0.05μm), S136 steel can be selected for ABS plastic part customization molds, and corrosion resistance enhancement design is necessary for PP plastic part customization molds. Gate type should be appropriately selected: pinpoint gates or submarine gates for exterior parts and side gates for structural parts to ensure the strength of weld lines meets standards.

III. Quality Assurance and Technological Trends

1. Customized Quality Control StandardsDimensional accuracy complies with IT10-IT12 standards, with a key dimension tolerance of ±0.05mm verified by coordinate measuring machines. Exterior quality is inspected via AOI, requiring surface defect area ≤0.5mm² and defect count ≤2 per part. Mechanical property sampling inspection must meet basic industry requirements: ABS notched impact strength ≥20kJ/m², PP tensile strength ≥20MPa, and PC flexural strength ≥90MPa. Statistical Process Control (SPC) is adopted for process control to ensure production stability.

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3. Industry Technological Development TrendsIn green customization, bio-based PP materials and recycled material recycling technologies are promoted, with servo injection molding machines achieving an energy-saving rate of over 30% to comply with environmental policies. For intelligent upgrading, Moldflow simulation analysis is introduced to predict defects, and industrial internet enables real-time monitoring and automatic adjustment of process parameters. In the precision direction, micro-nano molding technology is applied to the customization of small precision parts, reducing dimensional tolerance to ±0.005mm. Through material modification innovation such as glass fiber reinforcement and flame retardant modification, the application boundaries of the three materials in high-temperature and high-stress scenarios are expanded.
4. Key Points for Mass Production OptimizationEstablish a material-process parameter database to shorten mold testing cycles. Mold maintenance requires inspection of cavity wear every 100,000 molds, with timely polishing or replacement of vulnerable parts. Multi-cavity mold design is adopted for mass customization to improve production efficiency while ensuring product consistency.

Summary