Induction Pipe Hot Expansion Machine

Patent technology research and development with mature and rich design and manufacture experience more than 20 years.
Small investment, easy operation, quick return

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Product Description

Product Description

1. Hot Pipe Expansion Machine Introduction:

As our company's patented product is a new technology. Steel pipes as raw material, combines taper die diameter expansion technology, high power medium frequency induction heating technology, hydraulic control system and smart digital control together, which can expand the small OD pipes to large OD pipe with standard or non-standard sizes, and Can meet the user's arbitrary needs.

The most important, the quality of expanded finished pipe is exactly the same as that of the parent pipe and will not be affected. At present our hot expanded pipes have been widely used in the fields of military industry, aerospace industry and marine industry equipment manufacturing, which has made a great contribution to national defense and energy construction. And formed a new industry - steel pipe hot expansion industry.

2. Hot Pipe Expansion Machine Main Technical Parameter:

1) Finished pipe OD range: 48-1420mm

2) The max mother pipe wall thickness: 120mm

3) The max mother pipe length: 25m

4) Pipe OD expansion ratio: 1-1.8

5) Pipe Wall thinning ratio: 5%-8%

6) Mother pipe length: finished pipe length×OD expansion ratio

7) Power consumption of equipment: 250-350 KWH/T

8) Pipe material can be seamless steel pipe, welded pipe, titanium alloy pipe, stainless steel pipe (austenitic, duplex steel) and other metal pipe induction heating expansion pipes.

9) Accept customized that design and manufacture of various specifications of heating expansion machine according to customer requirements .

Inducting Pipe Hot Expansion Machineg

3.Hot Pipe Expansion Machine Advantage And Features:

1) The patent technology research and development production, has obtained the national independent intellectual property rights.

2) With optimized hydraulic circuit design, high-quality hydraulic device selection, perfect quality production system, provide users with excellent quality the machine can 24H continuous production and operation.

3) Adopt PLC medium frequency heating intelligent constant temperature system, energy saving, environmental protection and low labor cost, which can make 1 operator controls normal expansion production of max 10 sets of expanding machines at the same time.

4) Equipped with IPC to store and record the operation data of the machine in the production process to provide traceability for the customer's product quality.

5) Especially suitable for the production of small batch steel tubes with multiple specifications, which is a good supplement to the rolled seamless steel tube specifications on the market.

4. Hot Pipe Expansion Machine Configuration

1) Hydraulic valves adopt international standard rexroth series products.

2) PLC Electric Control System adopts International standard Siemens or Schneider product.

3) The motor adopt famous brand HENGLI motor.

4) Medium Frequency Power Supply Cabinet Adopt IGBT, it's more energy-saving .

5)Equipped with Closed Circulated energy saving cooling water system, it's small floor space, safety and environmental protection, Easy Installation and Maintenance.

5. Hot expansion production line and auxiliary machines:

1) A complete hot expansion production line includes: sawing machine →graphite spraying machine → pipe expansion machine → pipe straightening machine → pipe inner grinding machine → pipe external grinding machine →pipe end beveling machine →pipe hydro testing machine. And all machines are manufactured by ourselves.

2) Electricity is the main cost and the largest energy consumption for the whole production line, the second is the graphite powder used to lubricate the inner wall of the pipes.

3) The equipment only needs to be maintained once a year, and no additional costs will be incurred under normal use.

4) If the workers are skilled in standard operation, the qualified rate of the finished pipe is almost guaranteed to be 100%. However, in the case of heating, there will occasionally be pipes that are not straight enough, so the straightening machine is necessary.

5. FAQ-(Frequently Asked Questions)

>Q1: What's the min pipe wall thickness can be expanded?
The Hot pipe expansion machine can be used to expand the raw pipes with the min wall thickness 3mm.
Too thin pipe is easy to happen the problem that cause wrinkle and the front and rear pipe are inserted into each other,etc while expanding.
>Q2: Will the wall reduction change for different pipe specifications?
No. The wall thin ratio 5%-8% is same for wall kinds of expanded pipes.
>Q3: Is it possible to expand a pipe two times or more?
Yes, no problem.
>Q4: How about the pipe wall thin ratio, same?
Yes, same. （5%-8%）
>Q5: How to control the pipe wall thin reduction ratio?
That can be accurately controlled by expanding mould.
>Q6: Is the expanding mandrel welded to the pull rod?
No. It is screwed on with silk head.
>Q7: Does the quotation include the mould, pull rod and heating coil?
No.
That need to order separately according to detailed pipe specifications user require.

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