What factors should be considered when selecting engineering plastics
1. Mechanics
Form and size of stress, form and time of load, anti fatigue requirements, allowable deformation, overload and accidental stress conditions, impact resistance requirements, etc.
2. heat
Normal operating temperature, maximum and minimum operating temperature.
3. environment
Touch the conditions of solvents and various vapors, chemical reaction with acid and alkali, water absorption, UV and environmental oxidation, sand and rain corrosion, mold and microorganism.
4. toxicity
Flame retardant, toner, additive or toxicity during decomposition.
5. appearance
Transparency, appearance brightness, consistency and persistence of color.
6. scale
Allowable error and scale stability, weight factor.
7. production
Selection of processing technology, installation method, trimming and secondary processing, quality control and supervision.
8. Economics
Material cost, mold cost, processing machinery cost, auxiliary equipment cost, operation cost, machinery maintenance cost, etc.
9. statute
Safety rules (flame retardant, food, medicine).
Industrial rules (automobile industry, electronic industry, etc.).
10. General structural parts
Requirements: there are no special requirements for strength and heat resistance. It is generally used to replace steel or other materials. The batch is large and high productivity is required. Low cost, sometimes have certain requirements for appearance.
Source: Jiangmen engineering plastics http://m.latexbbs.com/
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