Product Name Specification Material Steel/Origin Price (yuan/ton) Compared to last week, compared to last month General line Φ6.5mm Q235 Jiu Steel 5870 0 0 High Line Φ6.5mm Q235 Kunming Steel 6050 0 0 170 High Line Φ6.5mm Q235 Jiuquan 6050 0 0 100 High Line Φ6.5mm Q335 Heavy Steel 6080 0 0 130 Rebar Φ12mm HRB335 Steel 6080 0 0 30 Rebar Φ12mm HRB335 Cold Steel 6030 0 0 30 Rebar Φ12mm HRB335 Heavy Steel 6030 0 0 30 Thread Steel Φ12mm HRB335 Degang 6030 0 0 30 Rebar Φ14mm HRB335 Heavy steel 5950 0 0 70 Rebar Φ16mm HRB335 Water steel 5850 0 0 30 Rebar Φ16-25mm HRB335 Kunming Steel 5820 0 0 20 Rebar Φ16-25mm HRB335 Heavy steel 5810 0 0 20 Level III Rebar Φ16-25mm HRB400 Water Level 6120 0 0 0 Level III Rebar Φ16-25mm HRB400 Weigang 6120 0 0 0 Level III Rebar Φ25mm HRB400 De Steel 6120 0 0 0 Hot Roll 2.75mm*1250 *C Q235 Pangang 6300 0 20 240 Hot rolled coil 3.0mm*1250*C Q235 Panzhihua Steel 6200 0 20 240 Hot rolled coil 4.75mm*1250*C Q235 Panzhihua Steel 6050 0 20 250 Hot rolled coil 6.0mm*1250*C Q235 Pangang 6020 0 20 240 Hot rolled coil 3.0mm*1250*C Q235 TISCO 6120 0 0 200 Hot rolled coil 5.5mm*1500*C Q235 Baotou Steel 6130 0 80 280 Hot rolled coil 5. 5*1500*C Q235 Jiuquan 6030 0 60 250 Cold rolled coil 0.5mm*1000*C Q195 Panzhihua Steel 7500 0 70 300 Cold rolled coil 0.7mm*1000*C Q195 Panzhihua Steel 7330 0 80 330 Cold rolled coil 1.0mm* 1000*C Q195 Panzhihua Steel 7150 0 100 350 Cold rolled coil 1.2mm*1000*C Q195 Panzhihua steel 7130 0 100 350 Cold rolled coil 1.0mm*1250*C Q195 Wuhan Iron and Steel 7250 0 220 470 Cold rolled coil 1.0mm*1000*C Q195 heavy steel 7150 0 70 380 cold rolled coil 1.0mm*1250*C Q195 silicon steel 7130 0 100 380 hot rolled steel 2.75*600*C Q235 Weigang 6100 0 50 170 hot rolled steel 3.5*685*C Q235 Granville Steel 6000 0 50 170 Hot Rolled Strip 6.0*760*C Q235 Weigang 5900 0 50 170 Hot Rolled Strip 7.85*820*C Q235 Yuxi Xinxing 5850 0 50 130 Hot Rolled Strip 5.0*710*C Q235 Yuxi Xinxing 5950 0 60 140 Hot Rolled Strips 3.75*610*C Q195 Tianjin Rolled 1 5950 0 50 150 Puzhong Plate 8mm Q235 Heavy Steel 7150 0 0 300 Puzhong Plate 10mm Q235 Heavy Steel 6950 0 0 300 Puzhong Plate 14-25mm Q235 Weight Steel 6750 0 0 250 Puzhong Plate 14/22mm Q235 Jiu Steel 6700 0 0 250 Puzhong Plate 14-18mm Q235 Linsteel 6700 0 250 Puzhong Plate 14-20mm Q235 New Steel 6720 0 20 270 Low Alloy Plate 12-25mm Q345 Heavy Steel 7100 0 50 350 Shipbuilding Plate 10mm CCSA Xinyu 7200 0 0 250 Shipbuilding 12mm CCSA Xinyu 7050 0 0 250 Shipbuilding plate 10mm CCSA Wuhan Iron and Steel 7300 0 0 300 Boiler plate 8mm 20g Heavy steel 7850 50 50 550 Boiler plate 10mm 20g Heavy steel 7700 50 50 550 Boiler plate 12-25mm 20g Heavy steel 7600 50 50 550 Boiler plate 28mm 20g Heavy steel 7650 50 50 550 Container plates 8mm 16MnR Heavy steel 8050 50 50 600 Container plates 10mm 16MnR Heavy steel 7900 50 50 600 Container plates 12-25mm 16MnR Heavy steel 7800 50 50 600 Container plates 26-32mm 16MnR Steel 7850 50 50 600 galvanized coil 0.4mm*1000*C SGCC Chongqing Sigang 9100 1500 1500 1900 Galvanized coil 0.5mm*1000*C SGCC Chongqing Sigang 8000 600 600 1050 Galvanized coil 1.0mm*1000*C SGCC Chongqing Sigang 7600 350 350 1000 Color Coil 0.426mm*1000*C TST02Z Chongqing Fourth Steel 9000 0 0 950 Color Coil 0.476mm*1000*C TST02Z Chongqing Sigang 8700 0 0 950 Seamless Pipe 108*5mm 20# No Plant 7800 300 300 700 Seamless tube 133*5mm 20# Without plant 7800 300 300 700 Seamless tube 159*6mm 20# Without plant 7800 300 300 600 Seamless tube 219*6mm 20# Without plant 8100 300 300 800 I-beam 25# Q235 Laiwu Steel 6300 50 50 150 I-beam 36# Q235 Baotou Steel 6450 50 50 150 Channel Steel 16# Q235 Liusteel 5950 100 100 200 Tank Steel 25# Q235 Wugang 6100 100 100 250 Angle Steel 50*5mm Q235 Ansteel 5850 50 50 200 Angle Steel 50*5mm Q235 Nanchang Steel Plant 5750 50 50 200
Injection Blow Moulding
Definition of Blow molding
Blow molding is a common process for production of hollow containers, ranging from commodity products such as soda or water bottles to highly engineered products such as gas tanks and electrical enclosures. The two most common types of blow molding are extrusion blow molding and injection blow molding with many variants related to handling of the parison and molds.
Blow molding processes:
Three main types of blow molding
l Extrusion Blow Molding
u Take melted plastic
u Extrude the parison with compressed air into the mold
u Features two variations: continuous and intermittent
l Blow Molding
u Produce small medica and single-serve bottles
u Large quantities of hollow glass and plastic objects
u Via pin to blow air into mold to inflate and cool the product
u Restriction on the bottle design, only allowing a champagne base to be made for carbonated bottles.
Injection stretch molding
Injection stretch molding is suitable for cylindrical, rectangular, or oval bottles and has two different main methods, notably the single-stage and two-stage processes
With the single-stage method,
the same machine is used to both preform manufacture and bottles blow the object. This method is highly suitable for low volumes and short runs
In the case of the two-stage process,
the plastic is first molded into a [preform" using the Injection Molding process. The [preforms" are then packaged and fed after cooling into a reheat stretch blow molding machine. While a high capital cost and a large floor footprint are necessary, injection stretch molding can produce very high volumes and feature minimal restrictions on bottle design. The bottles can also be a completed item for a third party to blow
Materials: PE, PVC, PC, PP, PS
Applications:
l To produce bottle-shaped, hollow thin-wall molding products and bulky products, such as seasoning, water bottles, cleaning agents, shampoo and other packaging supplies
l And produce trash cans, gasoline cans, and even the capacity of up to a ton of chemical barrels and fishing products transport boxes
Advantages
l Thin wall forming products, materials and cost saving
l Low cost of mold, rich mold materials
l Can produce large, complex shape hollow products
Disadvantages
l Low dimensional accuracy
l Thickness of the forming product wall is difficult to control and easy to have uneven problem
l Product surface is prone to flow marks, rough but not delicate
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