There are many kinds of seamless tube (smls) production equipment according to the seamless steel tube production process. However, regardless of the rolling, extrusion, top pressing or spinning seamless steel tube manufacturing process, the billet heating equipment is inseparable, so the billet heating equipment is a very important production equipment in the seamless steel tube production equipment. Here, HGSP carbon steel seamless tube suppliers will talk about seamless steel tube production equipment.


1. Types of seamless tubes


Seamless steel tubes that can be produced by seamless steel tube production equipment generally include: seamless steel tubes for main structures, seamless steel tubes for hydraulic props, seamless steel tubes for fluid transmission, semi-trailer axles, seamless tubes for axles, and half-axle sleeves Seamless steel tubes for pipes, seamless steel tubes for high-pressure boilers, etc., as well as special seamless steel tubes for oil casing pipes and line pipes.


2. The production process of seamless steel tubes


Seamless steel tubes are rolled into round steel from steel ingots, and the tube blanks (gross tubes) are obtained through hot piercing, and then made into seamless tubes by hot rolling, cold rolling or cold drawing. There are many production processes for seamless steel tube 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 and enter the rolling process. The seamless steel tubes are produced by the forming machine or extrusion machine, and then straightened and shaped, cut and marked, and bundled into warehouses.


3. Seamless tube production equipment


Seamless steel tube 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, bundling equipment, etc.


4. Tube billet heating furnace for seamless tube production equipment


The round steel or tube billet heating furnace for seamless steel tubes is one of the most important equipment for the production of seamless steel tubes. The round steel must be heated to 1150 degrees and then perforated into pores, which is the basis for subsequent shaping, detection, marking, etc. work. The basic configuration of the seamless tube billet heating furnace is as follows:


a. Intermediate frequency power supply system: 200KW-6000KW, hourly output 0.2-16 tons.
b. 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.
c. 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.
d. Temperature control system: infrared temperature measurement PLC temperature closed-loop automatic temperature control system.
e. 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 "one-key restore" system and multiple language switching functions.
f. Roller conveying system: Rotary conveying mechanism is adopted, 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.
g. Intermediate frequency heating energy conversion: heating per ton of steel to 1050°C, power consumption 310-330°C.
h. Specifications of round steel perforated capillary after heating: diameter φ95～140mm, wall thickness 5～20mm, length 4500-7500mm