Spiral steel pipe into the steel unit, multi-roll rolling strip gradually rolled up, and the formation of a gap with the open tube, squeeze roll to ...
Date:2018-02-05 Tags:LSAW,LSAW Steel Pipe
Magnetic particle inspection or penetration testing can effectively detect surface cracks, folds, serious leather surface defects, hair lines, pinhole...
Date:2018-02-02 Tags:Seamless steel tube magnetic particle inspection or penetrant inspection
Deformed mold complex is often complicated, but as long as we grasp the deformation laws, analyze the causes, the use of different prevention methods ...
Date:2018-02-02 Tags:How to prevent longitudinal seam welded pipe thermal deformation
Squeeze forging, rolling method is the difference: 1, precision seamless extrusion heating temperature than forging, rolling high 30-60 ℃; 2, deform...
Date:2018-02-02 Tags:Hot-rolled seamless steel pipe characteristics
Squeeze forging, rolling method is the difference: 1, precision seamless extrusion heating temperature than forging, rolling high 30-60 ℃; 2, deform...
Date:2018-02-02 Tags:Precision seamless steel pipe extrusion production process
Precision light pipe passivation pickling, degreasing, ordinary precision three light tube surface treatment process....
Date:2018-02-02 Tags:Precision light pipe commonly used surface treatment process
Deformed mold complex is often complicated, but as long as we grasp the deformation laws, analyze the causes, the use of different prevention methods ...
Date:2018-02-01 Tags:How to prevent longitudinal seam welded pipe thermal deformation
In the case of hot-rolled seamless pipes, cold-rolled seamless pipes are made below the recrystallization rolling temperature, but hot-rolled seamless...
Date:2018-02-01 Tags:Hot-rolled seamless steel pipe characteristics
Squeeze forging, rolling method is the difference: 1, precision seamless extrusion heating temperature than forging, rolling high 30-60 ℃; 2, deform...
Date:2018-02-01 Tags:Precision seamless steel pipe extrusion production process
Precision light pipe passivation pickling, degreasing, ordinary precision three light tube surface treatment process....
Date:2018-02-01 Tags:Precision light pipe commonly used surface treatment process
Some high-strength martensitic stainless steels, high-speed tool steels, and high-strength alloy steels, due to their high hardenability and alloying ...
Date:2018-02-01 Tags:Various factors affecting the hardenability of steel
According to the report, the Japanese finance ministry announced in December 22nd that the temporary anti-dumping duties on steel and steel parts from...
Date:2018-01-31 Tags:Japan has imposed temporary anti-dumping duties on China and South Korea's steel parts and spare par
On January 22, the Canadian Border Services Agency (CBSA) issued a public notice to initiate a double anti-sunset review of the seamless Casing origin...
Date:2018-01-31 Tags:Canada's second round of "double reverse" sunset review of seamless steel casing in China
In January 26, 2018, the United States cispi (Cast Iron Soil Pipe Institute) on behalf of the domestic industry in the United States to the United Sta...
Date:2018-01-31 Tags:US companies to China cast iron sewer pipe filed
Precision light pipe passivation pickling, degreasing, ordinary precision three light tube surface treatment process....
Date:2018-01-31 Tags:Precision light pipe commonly used surface treatment process
