Custom Stainless Steel Carbon Steel Tube Mill

Steel pipe machine is used for the production of various types of metal steel pipe industrial equipment, including welding steel pipe and special material pipe (such as stainless steel pipe) manufacturing. The core process is divided into ‌ high frequency welding ‌ and ‌ rolling molding ‌ two categories, the specific classification and application are as follows:

First, classification and core process

High-frequency pipe welding machine ‌

Applicable material ‌ : carbon steel, galvanized steel, low alloy steel, etc ‌.

Process features ‌ : The tube billet joint is heated by high frequency current, and the weld strength can reach more than 90% of the base material ‌.

Typical products ‌ : building structure pipe, automobile exhaust pipe, water pipe ‌.

Stainless steel pipe making machine ‌

Process difference ‌ : argon arc welding or plasma welding should be used, with inert gas to protect the weld to prevent oxidation ‌.

Application scenario ‌ : stainless steel pipes for food processing and decoration (such as stair handrails) ‌.

Second, equipment structure and core components

High-frequency pipe welding machine consists of ‌

Uncoiler ‌ : release strip coil material, support continuous feeding ‌.

Forming unit ‌ : multi-set roller gradually crimp strip steel into tube billet, precision error ≤0.1mm‌.

High frequency welding device ‌ : heating the joint through skin effect, extrusion roller pressure to complete the welding ‌.

After-treatment unit ‌ : including internal weld straightening machine, sizing straightening machine and online eddy current testing system ‌.

3. Comparison of process flow

Process type ‌ ‌ process steps ‌ ‌ Technical points ‌

High-frequency welding pipe unwinding → shear butt welding → forming → welding → internal welding leveling → sizing and straightening → detection and cutting ‌ welding speed up to 150 m/min, saving more than 30% ‌

Seamless steel pipe rolling tube piercing → mandrel rolling → rod stripping → sizing → cooling → finishing ‌ mandrel limiting technology can improve the wall thickness accuracy of ±5%‌

Strip pretreatment → forming → Argon shielded welding → solution annealing → Polishing → Inspection ‌ welding seams need to pass X-ray or eddy current non-destructive testing ‌

Automatic upgrade ‌

Thin-wall stainless steel pipe machine adopts automatic feeding, laser welding and real-time monitoring, reducing manual intervention ‌.