In the silicone industry, to meet the user experience of the majority of consumers, multi-color products have always been the best-selling products, the process is used in silicon materials bonding and plastic bonding.
1. Soft and hard plastic two-color design
In the silicon bonding area, several silicon materials will be used to achieve different color silicon, different rubber components, so the multi_k color process is commonly used and is quite popular.
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The two materials must have a certain temperature difference in the melting point. Generally, it is recommended to reach 60°. It is recommended to be at least 30°. The melting temperature of the first shot material is high. Generally, the first shot is PC or PC/ABS, and the second shot is TPU or TPE, PC thickness is 0.6-0.7mm, soft rubber part thickness is required to be 0.4mm or more.
Try to widen the contact area, make grooves to increase the adhesion, or use the core for the first shot, and the second part of the material is injected into the first shot. The surface of the first shot is as rough as possible.
2. Material compatibility
Multi-color injection molded mating materials must meet two basic compatibility conditions. They are compatible with the adhesive compatibility and processing.
3. Transparent and non-transparent two-shot design
(1) Double shot design of small lenses
The first shot is non-transparent, and the second shot is made of a lens. The first shot uses a PC with a high melting point and the second shot uses a PMMA.
(2) Transparent and non-transparent bijective design for decoration
The first shot is a non-transparent material, the second shot is a transparent material, and the non-transparent material is generally a high temperature of the PC material of SABIC, and the second shot transparent material is PMMA or PC. The PC needs to be sprayed with UV to protect it. PMMA can choose uv or fortification. If there are characters on the surface, you must choose UV
Product Name Specification Material Steel Factory/Origin Price Today (yuan/ton) Yesterday Price (yuan/ton) Change (yuan/ton) High-line φ6.5-10mm Q235 Shougang 5450-5500 5550-5560 Down 100 High-line φ6.5 -10mm Q235 Tangshan Steel 5450-5500 5550-5560 fell 100 high-line φ6.5-10mm Q235 Xuanhua 5450-5500 5550-5560 fell 100 high-line φ6.5-10mm Q235 Tiangang 5450-5500 5550-5560 fell 100 Pu Line φ6.5-10mm Q235 Shougang 5450-5500 5550-5560 fell 100 General line φ6.5-10mm Q235 Tang 5450-5500 5550-5560 fell 100 rebar φ12-14 HRB335 rolling two 5420-5430 5420-5430 unchanged Rebar φ16-25 HRB335 Roll 2 5400-5410 5400-5410 Constant Rebar φ12-14 HRB335 Rolled Three 5420-5430 5420-5430 Constant Rebar φ16-25 HRB335 Rolled Three 5400-5410 5400-5410 Rebar Φ12-14 HRB335 Shougang 5600-5650 5550-5600 up 50 rebar φ16-25 HRB335 Shougang 5400-5450 5350-5400 up 50 rebar φ12-14 HRB335 Xuanhua 5600-5650 5550-5600 up 50 rebar φ16-25 HRB335 Xuan Gang 5400-5450 5350-5400 Up 50 Rebar φ12-14 HRB335 Tang Steel 5600-5650 5550-5600 Up 50 Rebar φ16-25 HRB335 Tang Steel 5400-5450 5350-5400 Up 50 Thread Φ16-25 HRB335 Bearing Steel 5600-5650 5350-5400 Up 50 Rebar φ28-32 HRB335 Tang Steel 5450-5500 5400-5450 Up 50 Third-grade Disk Screw φ12-14 HRB400 Steel 5800-5850 5750-5800 Up 50 Three-stage Disk screw φ16-25 HRB400 Bearing steel 5550-5600 5550-5600 Constant three-stage disk screw φ28-32 HRB400 Steel 5650-5700 5600-5650 Rising 50 Round bar Φ12mm Q235 Rolling three 5550-5600 5550-5600 Constant round steel Φ16-18mm Q235 Ansteel 5450-5500 5450-5500 Unimproved Round Steel Φ20-22mm Q235 Ansteel 5450-5500 5450-5500 Unchanged Cold-rolled Sheet 1.0*1000*2000 ST12 Angang 7150-7200 7250-7300 Or 100 Cold Rolled Thin plate 1.2*1000*2000 ST12 Angang 7150-7200 7250-7300 fell 100 cold rolled sheet 1.5*1000*2000 ST12 Angang 7150-7200 7250-7300 fell 100 cold rolled sheet 2.0*1000*2000 ST12 Angang 7150-7200 7250-7300 Drop 100 Cold Rolled Sheet 1.0*1000*2000 DC01 Ben Steel 7150-7200 7250-7300 Drop 100 Cold Rolled Sheet 1.2*1000*2000 DC01 Ben Steel 7150-7200 7250-7300 Drop 100 Cold Rolled Sheet 1.5*1000*2000 DC01 Steel 7150-7200 7250-7300 fell 100 cold rolled sheet 2.0*1000*2000 DC01 Ben Steel 7150-7200 7250-7300 fell 100 hot rolled sheet 2.0*1250*C Q235 TISCO 6150-6200 6200-6250 Dropped 50 hot-rolled plates 2.75*1250*C Q235 Tangshan/TISCO 6050-6100 6100-6150 fell 50 Hot-rolled plates 3.0*1500*C Q235 Tang/Shan Iron and Steel 5900-5950 5950-6000 fell 50 Hot-rolled plates 4.75 *1500*C Q235 Tangshan Iron & Steel/Taigang 5700-5750 5750-5800 fell 50 hot rolled steel plate 5.5*1500*C Q235 Tangshan Steel/clad steel 5700-5750 5750-5800 fell 50 hot rolled plate 11.75*1500*C Q235 Tang Steel/clad steel 5850-5900 5900-5950 fell 50 plate 6mm Q235 steel 6800-6850 6800-6850 unchanged plate 8mm Q235 steel 6800-6850 6800-6850 unchanged plate 10mm Q235 steel 6430 -6440 6430-6440 No Change Plate 12mm Q235 Sky Steel 6290-6300 6290-6300 No Change Plate 14-20mm Q235 Sky Steel 6200-6210 6200-6210 No Dash Plate 3.0mm Q235 Mei Steel 6100-6150 6100 -6150 Invariable tread plate 4.0mm Q235 Meigang 6100-6150 6100-6150 Invariable tread plate 5.0mm Q235 Benxi steel 6100-6150 6100-6150 Invariable tread plate 6.0mm Q235 Benxi steel 6100-6150 6100-6150 Unchanged shipbuilding Board 6mm CCSB Jinan Steel 8350-8400 8350-8400 Unchanged Shipbuilding 8mm CCSB Jinan Steel 8150-8200 8150-8200 Unchanged Shipbuilding 10mm CCSB Jinan Steel 8170-8180 8170-8180 Unchanged Shipbuilding 12-25mm CCSB Jinan Steel 7780 -7790 7780-7790 unchanged Low-alloy plate 16-25mm Q345B Skysteel 6500-6510 6500-6510 Low-alloy plate 16-25mm Q345B Jinan Steel 6940-6950 6940-6950 Constant color plate 0.326*1000*C SGCC Langfang 8800-8850 8800-8850 Constant color coating 0.426*1000*C SGCC Xinyu 8450-8500 8450-8500 Invariable color coating 0.476*1000*C SGCC Xinyu 8300-8350 8300-8350 Invariable color coating 0.5*1000*C TST01 Baosteel 8950- 9000 8950-9000 Invariable Color Coated Sheet 0.6*1200*C TST01 Baosteel 8900-8950 8900-8950 Invariable galvanized sheet 1.0*1000*C DX51D+Z Benxi Steel 7450-7500 7450-7500 Invariable galvanized sheet 0.7* 1250*C DX51D+Z Angang 7550-7600 7550-7600 Invariable galvanized sheet 0.6*1250*C DX51D+Z Angang 7700-7750 7700-7750 Invariable galvanized sheet 0.5*1000*C SGCC Hengtong 7550-7600 7550- 7600 Invariable galvanized sheet 0.4*1000*C SGCC Hengtong 7700-7750 7700-7750 Invariable hot rolled universal tape 4.0*685 Q235 Xingtai 5600-5610 5600-5610 Constant hot rolled universal tape 5.5/5.6*520 Q235 Xingtai 5600 -5610 5600-5610 constant hot-rolled universal tape 6.5*685 Q235 Xingtai 5600-5610 5600-5610 constant hot-rolled universal tape 3.5*685 Q235 Tangshan 5600-5610 5600-5610 constant cold-rolled universal tape 0.5mm*355 Q195 Tianjin Qifeng 5900-5910 5900-5910 unchanged Cold Rolling Tape 1.2mm*355 Q195 Tianjin Qifeng 5900-5910 5900-5910 Constant Cold Rolling Tape (0.5-0.8)*(500-700) Q195 Tianjin Qifeng 6550 6550 Cold Rolling Tape (0.8- 2.0)*(500-700) Q195 Tianjin Qifeng 6550 6550 Invariable channel steel 10#*6mm Q235 Jiangtian 5400-5410 5400-5410 Constant channel steel 16#12mm Q235 Jiangtian 5400-5410 5400-5410 Steel channel 20 #*12mm Q235 Jiangtian 5350-5400 5350-5400 Never changing angle steel 50mm*50*5/6m Q235 Zhaobo 5300-5310 5300-5310 Changing angle 80mm*80*8/6m Q345 trillion Bo 5300-5310 5300-5310 No Variable angle steel 100mm*100*10/9m Q235 trillion Bo 5300-5310 5300-5310 Constant I-beam 16#12mm Q235 Haicheng 5250-5260 5250-5260 Constant I-beam 20#12mm Q235 Haicheng 5250-5260 5250 -5260 Constant I-beam 25#12mm Q235 Haicheng 5450-5460 5450-5460 Constant H-beam 200*100*5.5*8 Q235/SS400 Rizhao 5350-5400 5350-5400 Constant H-beam 150*150*7* 10 Q235/SS400 Laiwu Steel 5400-5450 5400-5450 unchanged H-beam 300*300*10*15 Q235/SS400 Ma Steel 6200-6250 6200-6250 unchanged H-beam 400*400*13*21 Q235/SS400 Ma Steel 6400-6450 6400-6450 Invariable welded pipe 6 points/2.5mm Q235 Youfa 5860-5870 5860-5870 No Welded pipe 1 inch/3.0mm Q235 Youfa 5860-5870 5860-5870 Welded pipe unchanged 1.5 inch/3.25mm Q235 Youfa 5780-5790 5780-5790 Welded pipe 4 inch/3.75mm Q235 Youfa 5780-5790 5780-5790 No Change the welded pipe 6 inch/4.0mm Q235 Youfa 5800-5850 5800-5850 Change the welded pipe 1 inch/3.0mm Q235 Lida 6080-6090 6080-6090 Change the welded pipe 1.5 inch/3.25mm Q235 Lida 6070-6080 6070-6080 Invariable welded pipe 4 inch / 3.75mm Q235 Lida 6000-6010 6000-6010 Invariable welded pipe 6 inch / 4.0mm Q235 Lida 6150-6160 6150-6160 Invariable welded pipe 8 inch / 5.0mm Q235 Lida 6150-6160 6150- 6160 Invariable seamless tube 76*4.5 20# Tianjin 7500-7510 7500-7510 Invariable seamless tube 108*4.5 20# Tianjin 7600-7610 7600-7610 Invariable seamless tube 114*4.5 20# Ansteel 7350-7400 7350-7400 Seamless seamless tube 159*5 20# Angang 7450-7500 7450-7500 Seamless seamless tube 219*6 20# Angang 8000-8050 8000-8050 Seamless seamless tube 377*10 20# Clad steel 8200 -8210 8200-8210 Invariable seamless tube 426*11 20# Baotou steel 8200-8210 8200-8210 Invariable galvanized tube 4-6 points 2.75 Lida 7910-7920 7910-7920 Invariable galvanized tube 1-1.25 inch 3mm Lida 7540-7550 7540-7550 Invariable galvanized tube 1.5 inch 3.25mm Lida 7290-73 00 7290-7300 Invariable galvanized tube 2 inch 3.25mm Lida 7180-7190 7180-7190 Constant galvanized tube 2.5 inch 3.75mm Leader 7180-7190 7180-7190 Invariable galvanized tube 3 inch 3.75mm Leader 7180 -7190 7180-7190 Invariable galvanized tube 4 inch 4mm Leada 7180-7190 7180-7190 Constant galvanized tube 5 inch 4mm Leada 7380-7390 7380-7390 Invariable galvanized tube 6 inch 4mm Lida 7380-7390 7380-7390 invariable galvanized pipe 8 inch 5mm Lida 7380-7390 7380-7390 unchanged