There are many kinds of seamless steel pipe production equipment according to the seamless steel pipe production process. However, no matter the manufacturing process of rolling, extrusion, top pressing or spinning seamless steel pipe is adopted, it is inseparable from the pipe blank heating equipment, so the pipe blank heating equipment is a very important production equipment in the seamless steel pipe production equipment. Here,
PMC carbon steel pipe manufacturers will talk about seamless steel pipe production equipment and production process.
1) Types of seamless steel pipes
Seamless steel pipes that can be produced by seamless steel pipe production equipment generally include: seamless steel pipes for main structures, seamless steel pipes for hydraulic props, seamless steel pipes for fluid transmission, semi-trailer axles, seamless pipes for axles, seamless steel pipes for semi-axle casings, seamless steel pipes for high-pressure boilers, etc., as well as special seamless steel pipes such as
oil casing pipes and line pipes.
2) Production process of seamless steel pipe
Seamless steel pipes are rolled into round steel from steel ingots, which are hot pierced to obtain tube blanks (capillaries), and then made into seamless pipes by hot rolling, cold rolling or cold drawing. There are many production processes for seamless steel pipe production equipment. Whether it is continuous pipe rolling, periodic pipe rolling, pipe jacking production or extruded pipe production process, it is necessary to heat the round steel or tube billet to the process temperature with an intermediate frequency heating furnace, enter the rolling machine or extrusion machine to produce seamless steel pipes, and then perform straightening and shaping, pipe cutting and marking, and bundling into storage.
3) Seamless steel pipe production equipment
Seamless steel pipe production equipment includes blanking sawing machine, tube billet heating equipment, intermediate frequency heating furnace, conical piercing machine, Accu-Roll rolling mill, 8-stand three-roll micro-tension reducing machine, step-by-step cooling bed, six-roll straightening machine, high-efficiency pipe cutting machine, 180mm automatic magnetic flux leakage flaw detection equipment, 80MPa hydraulic testing machine, and length measuring, weighing, spraying, laser marking, and bundling equipment.
4) Tube billet heating furnace for seamless steel pipe production equipment
The round steel or tube billet heating furnace for seamless steel pipes is one of the most important equipment for the production of seamless steel pipes. The round steel must be heated to 1150 degrees and then perforated into pores, which is the most basic work for subsequent shaping, detection, and marking. The basic configuration of the seamless tube billet heating furnace is as follows:
1. Intermediate frequency power supply system: 200KW-6000KW, hourly output 0.2-16 tons.
2. Medium-frequency induction heating system: Customize the design of the inductor according to your needs, the workpiece specification, shape and size induction furnace body, the temperature of the furnace body is controllable, energy-saving, high-efficiency, and fast.
3. Material storage system: The thick-walled square tube is welded into a material storage platform with a slope of 13 degrees and can store more than 20 pieces of material.
4. Temperature control system: infrared temperature measurement PLC temperature closed-loop automatic temperature control system.
5. PLC control: Customized man-machine interface, highly humanized operation instructions, remote operation console of industrial computer system with touch screen, full digital and high-depth adjustable parameters, make you more comfortable to control the equipment. There is a Haishan electric furnace "one-key restoration" system and multiple language switching functions.
6. Roller conveying system: Rotary conveying mechanism is adopted, and the angle between the axis of the roller and the axis of the workpiece is 18-21 degrees. The roller between the furnace body is made of 304 non-magnetic stainless steel and water-cooled, and the workpiece is heated evenly.
7. Intermediate frequency heating energy conversion: heating each ton of steel to 1050°C consumes 310-330°C of electricity.
8. Specifications of round steel perforated capillary after heating: diameter φ95～140mm, wall thickness 5～20mm, length 4500-7500mm
Go here to learn more about "Heating Defects and Preventive Measures of Seamless Steel Tube Billets"
