Tube Expanding Machine

The Tube Expanding Machine is a new technology to produce large diameter pipes, steel pipe expansion machine is now necessary for steel pipe manufacturer. that can meet the production of the pipes with little batch and multiple specifications. Small investment and a big return.

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Product Description

Product Description

YAXING Tube Expanding Machine：

The Tube Expanding Machine uses qualified steel pipes as the mother pipe, heats the mother pipe to the specified process temperature through intermediate frequency induction, and is driven by the continuous movement of the hydraulic cylinder through the built-in mandrel to make The steel pipe is expanded through plastic deformation to become a production process of larger diameter seamless steel pipe. This technology is designed for the production of large-diameter and thick-walled steel pipes that cannot meet the market demand and the incomplete specifications of various types of steel pipe diameters. It is especially suitable for the production of small batches of multiple varieties of steel pipes and can meet the Steel Pipe Expansion requirement of different material steel pipes and various steel pipes diameter.

Characteristics of IF tube expanding process

Types and comparison of current steel pipe production processes:

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1. Pipe hot expanding production process: the steel tube is mainly radial deformation; the production method is flexible and easy to organize; small batch, multiple varieties, multiple specifications; ratio of diameter to wall thickness above 50; maximum diameter 1500mm. For seamless steel pipes with a diameter greater than 508mm and a diameter to wall ratio (D / S)> 25, the tube rolling unit is difficult to produce. The tube expanding machine process, especially the intermediate frequency hot steel pipe expansion process is a more economical option and is also indispensable. A scientific and reasonable steel pipe production process.

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2. Hot-rolling production process: steel tubes are mainly longitudinally deformed; large-scale continuous production; large batches, few varieties; diameter-wall thickness ratio within 40; maximum diameter: 720mmunits, 820mm units are less.

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3. Cold drawing production process: cold processing of steel pipe with equal or reduced diameter, longitudinal deformation to reduce wall thickness; multiple varieties and specifications; diameter to thickness ratio of more than 50; maximum diameter of 914mm. High accuracy and high cost.

The tube expanding machine Procession Scope:

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The Tube Expanding Machine has a wide processing range for various pipes and materials to meet users’ needs. Including:

·Seamless steel tube
·Straight welded tube
·Spiral welded tube
·Carbon steel tube
·Stainless steel tube (austenitic, duplex steel)
·Titanium alloy steel tube
·Terminal sensitive cartridge case special steel
·T250 special steel tube, etc

The Pipe Expanding Machine Technical Parameter:

1) Finished tube OD range：48-1420mm
2) The MAX mother tube wall thickness：120mm
3) The MAX mother tube length：25m
4) Tube OD expanding ratio: 1-1.8
5) The tube wall thinning ratio：5%-8%
6) Mother tube length: finished tube length×OD expanding ratio

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The Pipe Expander Machine History

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The tube expanding machine was invented in the mid-1990s. the inventor Fu Bingzhong found that the demand for large-diameter steel tubes in the steel pipe market could not meet the market requirements. After years of careful design, repeated experiments, and multiple improvements, the first Hydraulic Pipe Expanding Machine was successfully trial-produced on December 25, 1996, and was put on the market in September 1997.

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With the increasing demand for large-diameter thick-walled steel pipes in the market, Mr.Fu Bingzhong engineered and invented the four-cylinder hydraulic propulsion two-step pipe making machine, which turned the parallel thrust of the original expander The thrust of the frame-type focus point strengthens the stability of the equipment, improves the freedom of operation of the Pipe Expander Equipment, and enhances the reliability and production efficiency of the equipment

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According to the different needs of users, the technical aspects are continuously improved and improved. At present, the hot pipe expanding machine unit has been successfully developed. The CNC tube expansion machine has realized the intelligent control and remote control of the steel pipe expansion unit, making the operation simpler. , High efficiency and greatly reduce labor and production costs.

steel pipe expansion industrial development

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Since the birth of the first hydraulic tube expanding machine in 1996, there have been more than 600 sets of various types of pipe expanding machines in the world. With the development of power plant boilers in the direction of high parameters and the development of petrochemical plants in the direction of large-scale, the demand for large-diameter seamless steel pipes is increasing. Domestic and foreign steel pipe manufacturers have continued to invest Steel Pipe Expansion Production Lines. such as TENARIS Argentina, BRI-STEEL Canada, CASCO Korea, TPCO GROUP, CSSC GROUP, NHI, BAOSTEEL GROUP, VALIN STEEL, ANSTEEL GROUP, SHANDONG MOLONG, etc hundreds steel pipe manufacturer.

Our Service For The Tube Expanding Machine

√ Provide customized solution and layout drawing of pipe expander machine for fee.
√ Provide oversea service to guide the machine installation and debugging, and on-site train how to operate the pipe expander machine.
√ Online technology support to update the software of pipe expander machine and solve the running fault.
√ Supplier pipe expander machine consumption parts at a cheap price.

FAQ-(Frequently Asked Questions)

>Q1: What are all the machines for whole hot expansion production line?
Sawing Machine → Graphite Spraying Machine → tube expanding machine → steel pipe straightening machine→ steel pipe inner grinding machine → steel pipe external grinding machine → pipe end beveling machine → hydro testing machine
>Q2: What is the waste rate in the expansion process?
In order to make the pipe two ends flat , it needs to saw 30-50mm for every pipe. if the operator operate standard and raw pipe quality is OK, then there’s nearly no other waste.
>Q3: What’s the maintain cost for the equipment per year?
The hydraulic oil should be filtered once a year. Cooling circulation water channel cleaning once a year; The transmission parts need to add lubricating oil. There is no much costs consumption for normally maintain. It’s about one percent of the value of the equipment in a year.
>Q4:What is the qualified rate of finished pipe?
When the workers are skilled in standard operation, it’s almost 100% qualified, but occasionally there are bent pipes, which can be straightened by a pipe straightening machine.
>Q5: It is too consuming for time and cost for us to heat the pipe to 670 ° C before pushing it forward. Can we heat and push it forward directly?
No. At the beginning, the temperature of the pipe is low, it is easy to make pipe end crack, so the temperature must be added before it.
>Q6: What kind of valve is installed at the outlet of oil pump?
Oil filter butterfly valve
>Q7: What kind of hydraulic oil is suggested to be used?
46# hydraulic oil
>Q8: Where is the extension data download SUB interface?
on the back of the touch screen

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