Product Name Specification Material Steel/Origin Price (Yuan/Ton) Than Yesterday Last Month Than General Line Φ6.5mm Q235 Tong Steel 5870 0 -50 -50 Common Line Φ8mm Q235 Tong Steel 5870 0 -50 -50 High Line Φ6 .5-10mm Q235 Xilin 5950 0 0 -30 High Line Φ6.5-10mm Q235 Tong Steel 5950 0 0 -30 High Line Φ10mm Q235 Beitai 5950 0 0 -30 High Line Φ10mm Q235 Xinfu 5950 0 0 -30 Rebar Φ12 -14mm HRB335 Tong Steel 5550 0 -30 -50 Rebar Φ12-14mm HRB335 Xilin 5550 0 -30 -50 Rebar Φ12-14mm HRB335 Wu Steel 5550 0 -30 -50 Rebar Φ16-25mm HRB335 Tong Steel 5470 0 -20 10 Rebar Φ16-25mm HRB335 Xilin 5470 0 -20 10 Rebar Φ16-25mm HRB335 Jianlong 5470 0 -20 10 Rebar Φ12mm HRB400 Tongsteel/Westwood 5900 0 0 30 Rebar Φ14mm HRB400 Tongsteel/Xilin 5900 0 0 30 Rebar Φ16-25mm HRB400 Tong Steel/Westwood 5700 0 -50 0 Hot Roll 2.0mm*1050*C Q235 Angang (1700) 6400 0 0 100 Hot Roll 2.5mm*1050*C Q235 Angang (1700) 6280 0 0 130 Hot rolled coil 2.75mm*1050*C Q235 Angang (1700) 6250 0 0 100 Hot rolled coil 3.0mm*1250*C Q235 Angang (1700) 6230 0 0 100 Hot rolled coil 4.75mm*1500*C Q235 Angang (1700 ) 6120 0 -30 20 Hot rolled coil 3.0mm*1250*C Q235 Bengang 6230 0 0 100 Hot rolled coil 5.5-7.5mm*1250*C Q235 Benxi Steel 6120 0 -30 20 Hot rolled coil 3.0mm*1250*C Q235 Tangshan Steel 6230 0 0 100 Hot rolled coil 5.5mm*1250*C Q235 Tangshan Steel 6120 0 -30 20 Hot rolled coil 3.0mm*1250*C Q235 Tonghuang 6230 0 0 100 Cold rolled sheet 1.0mm*1000*2000 Q195 Ansteel 7400 0 0 50 Cold rolled sheet 2.0mm*1000*2000 Q195 Angang 7300 0 0 50 Cold rolled sheet 2.5mm*1000*2000 Q195 Angang 7300 0 0 50 Cold rolled sheet 3.0mm*1000*2000 Q195 Angang 7500 0 0 50 Cold Rolled plate 2.0mm*1000*2500 Q195 Baotou steel 6950 0 0 50 Cold rolled plate 1.0mm*1000*2000 Q195 Bengang 7350 0 0 100 Puzhong plate 8mm Q235 Sky steel 7050 0 0 0 Puzhong plate 10mm Q235 Tiangang 6670 0 0 0 Puzhong Plate 16-25mm Q235 Tiangang 6450 0 0 0 Low Alloy Plate 16-25mm Q345 Tian Steel 6700 0 0 Low Alloy Plate 16-25mm Q345 Jinan Steel 6700 0 0 0 Low Alloy Plate 16-25mm Q345 Angang 6700 0 0 0 Color Coil 0.426mm*1000*C SGCC Tianjin Xinyu 8400 0 -150 -150 Color Coil 0.476mm*1000*C SGCC Tianjin Xinyu 8300 0 -200 -200 Galvanized Coil 0.5mm*1000*C SGCC Hengtong 7400 0 -100 -100 Galvanized coil 1.0mm*1000*C ST02Z Bengang 7000 0 0 0 Welded pipe 1.5 inch* 3.25mm Q235 birch forest 6100 0 0 welded pipe 2.5 inch *3.5mm Q235 birch forest 6050 0 0 0 welded pipe 4 inch * 4.0mm Q235 birch forest 6050 0 0 0 I-beam 12# Q235 A-steel 5300 0 0 0 I-beam 26# Q235 Angang 5800 0 0 Channel 16# Q235 A-steel 5200 0 0 Channel 25# Q235 Laiwu Steel/ 0 0 0 Angle Steel 50*5mm Q235 Tong Steel 5400 0 0 0 Angle Steel 100*10mm Q235 Tong Steel 5600 0 0 0
Glue Binding
The glue with good performance also has a large change in melt viscosity with temperature. Specifically: when the use temperature rises above 150 degrees, the melt viscosity of the glue can be quickly reduced, so that the coating can maintain proper permeability; and when the temperature of the glue is lowered, the viscosity of the glue can quickly increase. , and quickly solidifies, thus ensuring the effect of rapid limb binding. Hot melt adhesives can maintain good permeability only if they have a suitable melt viscosity, which is very important for glue binding. But too low melt viscosity will cause insufficient amount of glue on the back of the book. The melting degree of hot melt adhesive is more suitable in the range of 4000-5000 centipoise. Good adhesion and penetration performance, that is, when the equipment is running at high speed, the glue must be able to quickly infiltrate the spine of the book, and have excellent cohesion, which can ensure "no wire drawing", and will not crack or fall apart after cooling. In order to achieve this goal, changing the composition of the glue is one aspect. The key is to improve the cohesion and toughness of the base resin, and to introduce strong adhesive force, hard quality, low melt viscosity into the composition, and when the temperature changes up and down, Resins that dissolve or set rapidly. Adhesives with good performance should also have good tensile strength. The phenomenon of loose pages, falling pages, and breaking during the use of adhesive books is directly related to the tensile strength of hot melt adhesives. The tensile strength is usually 20-30kg/cm2. Hot melt adhesives must have good elongation. The elongation at break is high, and the toughness of the hot melt adhesive is good; only with good toughness can the book not be easily broken. The elongation requirement is greater than 300%
Adhesive Binding,Hot Glue For Book Binding,Glue For Paper Binding,Book Binding Glue Spine
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