(PA6 N252》（原料） ‖。PPO CN5246 、‖。PP HP400T PC 22SRFD 、‖。TPEE 5752SP PC/ABS EXP2SL ABS MA221 HDPE DGDA6094 、‖。PBT MIN125 PC MN-3600HA 、→，LDPE F210-6 POM 127UV-NV010 HDPE K38-20-123 PC 2256 TPE VA1801 PP 26MB777 、→，PP HP420M HDPE FE 8004 、→，TPU 2384AGMP 、‖。PC/ABS XCY620S-100 、‖。TPV 3445DN PA6 K223-HGM24 、→，PP PM383 、→，GPPS THH102 PA66 606 、→，PBT BFN4211 PC EXL1443T 、‖。PP C707-12 ABS 3325MT TPE EL530 、‖。POM EC-610B 、‖。PP H11BF 、→，EVA CL17-8 、‖。PC 945A-116 PC VRY2000 、‖。POM MT12U03 、→，THV FC2123 PEI 1000R-GN5081 TPU AH-560 PP LGF7600 PPS GB8411 、→，PC FXM1414T 、‖。PP B4002 、‖。PP 5050M 、→，PVDF 6010 PP MX02795 LDPE 510I PC/ABS C7122 、‖。TPEE S201DH550H HDPE HD5502GA PA6 XP36-E1 、→，POM 100TL 、→，PC/ABS 2599X120643 、‖。TPU UH-71DU10 、→，LLDPE SP3010 、‖。TPE TP5CCN ABS AF-312 、‖。TPE TPSD333-50A 、‖。PA66 GBF 3020 TPU E1160D50 LCP ZE16401 PP H860F 、→，POM K300EWB BK PP PH-470 、→，EVA J5019 、‖。 9J1 、→，PP EP310R PA66 GF60-02-US 、→，PPO SPN410 、→，PTFE JTH-315 TPV 3440 EVA VS440 、‖。PA6 PF004EUC 、‖。PBT GF15HFFR1 、‖。PP 9122 PC GSH2010DR 、‖。PP QR674K 、‖。PC PC1000 、→，LDPE N-34 、→，GPPS 693-AMST 、→，PP GP621-2 PP H390F 、→，CA13 、‖。TPE RU2205-1 PBT NH2306F POM F20-25 、→，PFA GF20 PP PT231 PBT 5010GPN33 、‖。PBT B6550 LDPE F41 PTFE M-2001 HDPBM1052 PP S400 LLDPE M3204RU(P) 、→，PP 、→，PP BA35H 、‖。POM K500HS 、→，PBT 3300-2FC PP SM-240 PC DF-FR BK PBT WL003 PP SG722 TPV C700BM 、‖。PA6 NT0110GB 、‖。PP H703-22 、→，EVOH 1000NT ETFE EP-546 、‖。PC/ABS TN-7700 、→，PC/ABS TC-25M 、→，PC 201-18 、‖。PBT F202G30 、‖。POE DF610 、‖。TPE 950 、‖。PPS T121J1 TPU US-65AU10 UHMWPE L5220 PC/ABS C6200-BK POM WR702 、→，PBT 1731J BK 、→，PBT GP1000H HDPE 4152 D TPV 221-64 、‖。PA66 FR60 、‖。PA66 624 、‖。PPS 7A150 、 (1) injection: the general injection molding machine can be used, and the melting index of glass fiber reinforced PPS is 50. The technological conditions of injection are: barrel temperature, pure PPS at 280~330 C, 40%GFPPS at 300-350 C, nozzle temperature, pure PPS at 305 C, 40%GFPPS at 330 C, mold temperature at 120-180 C, injection pressure, 50-130MPA. (2) extrusion: exhaust exhaust extruder. The process is as follows: the temperature of the feeding section is less than 200 degrees, the temperature of the barrel is 300-340 degrees, the connection temperature is 320-340 degrees, and the die temperature is 300-320 degrees. (3) molding: suitable for large products, using two compression, first cooling, and then hot press. The preheating temperature of hot press is pure PPS at about 360 C 15min, GFPPS is about 380 centigrade 20min, and the pressure of mould pressure is 10~30Mpa, which is cooled to 150 DEG C. (4) spray forming: suspension spraying and suspension spraying and dry powder thermal spraying were used to spray the PPS onto the metal surface, and then the coating was obtained by plasticizing and quenching. The coating temperature of PPS was above 300 C and kept 30min. Drying process Temperature: 100~105 C Time: 3hr 2. Injection molding process 1) mold temperature: 60-80 C 2) barrel temperature: the front section: 220~260 C middle section: 290~310 C after section: 300~320 C Nozzles: 290~300 C 3) injection pressure: 60~70Mpa4) injection speed: medium speed 5) injection time: according to the size of the parts, the mold is filled with the parts, and the basic surface cooling and setting is the best. ABS The wall thickness of 1. products: the wall thickness of the products is related to the flow length of the melt, the production efficiency and the requirements of the use. The ratio of the maximum flow length and wall thickness of ABS melt is 190:1, this value will vary with the grade, so that the wall thickness of ABS products should not be too thin, the products need for electroplating, wall thickness is slightly thicker, to increase the adhesion of surface coatings and products. The wall thickness of this product is selected between 1.5 and 4.5mm. Considering the wall thickness of products, should also pay attention to the uniformity of the wall thickness, are not too big, the products need for electroplating on the surface should be smooth without bump, because these parts due to electrostatic interaction is difficult to remove dust adhesion, resulting in poor fastness of coating. In addition, it is necessary to avoid the existence of the sharp angle, so as to prevent the stress concentration, so it is appropriate to use the arc for the corner of the corner and the parts of the thick and thin connection. _ 2. draft: draft articles and shrinkage is directly related to the grade of different products, different shapes and different molding conditions and molding shrinkage have some differences, generally 0.3 ~ 0.6%, sometimes up to 0.4 ~ 0.8%, the product size precision molding. The demoulding slope of ABS products is considered as: the mold core part is 31 degrees along the die direction, and the cavity part is 4 (/ 1 20') along the die direction. For products with more complex shapes?or?letters and patterns, the deviated slope should be properly increased. The top 3. requirements: products due to apparent smoothness of the electroplating performance have a greater impact, any tiny scar on the table view there will appear obviously in electroplating, so in addition to the requirements of any scars are not allowed on the cavity, but also the effective area to the top, the the root rod at the top out of sync is better in the process of ejecting force should be uniform. 4. exhaust: in order to prevent the occurrence of problems such as bad exhaust, molten material burn and obvious seam line in the process of mold filling, we need to set up exhaust holes?or?exhaust tanks which are not more than 0.04mm, so as to discharge gas generated by melting material. 5. runner and gate: in order for ABS melt to fill all parts of the die cavity as quickly as possible, the diameter of the runner is not less than 5mm, and the thickness of the gate is over 30% of the product thickness. The length of the straight part (about the part that will enter the cavity) is about 1mm. The position of the gate should be determined according to the requirements of the products and the direction of the flow of the material. For the products that need to be treated with electroplating, it is not allowed to exist on the adhesion surface of the coating. Raw material preparation LLDPE The most common method of production of PE is through slurry?or?gas processing, and a few are processed by solution. All these processes are exothermic reactions involving ethylene monomer, a- olefin monomer, catalyst system (probably more than one compound) and various kinds of hydrocarbon diluents. Hydrogen and some of the catalysts are used to control the molecular weight. The slurry reactor is usually a stirred tank?or?a more commonly used large ring reactor in which the slurry can be stirred. Polyethylene particles are formed when ethylene and copolymerized monomers are in contact with the catalyst. After removing the diluent, the polyethylene particles?or?particles are dried and added to the dosage according to the dosage to produce the granular material. The modern production line of a large reactor with a twin screw extruder can produce more than PE40000 pounds per hour. The development of the new catalyst contributes to the improvement of the performance of the new grade HDPE. The two most commonly used catalysts are Philip's chromium oxide based catalyst and an alkyl aluminum catalyst for titanium compounds. The HDPE produced by the Philip type catalyst has a medium - width molecular weight distribution, and the molecular weight distribution of the titanium - alkyl aluminum catalyst is narrow. The catalyst used in the production of narrow MDW polymers with a compound reactor can also be used to produce a wide MDW grade. For example, two series reactors that produce significantly different molecular weight products can produce Shuangfeng molecular weight polymer, which has a molecular weight distribution in the full width domain. molecular weight