CN1082406C - Method for manufacturing or repairing hydro-cylinder and pipeline using composite material - Google Patents
Method for manufacturing or repairing hydro-cylinder and pipeline using composite material Download PDFInfo
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- CN1082406C CN1082406C CN97110496A CN97110496A CN1082406C CN 1082406 C CN1082406 C CN 1082406C CN 97110496 A CN97110496 A CN 97110496A CN 97110496 A CN97110496 A CN 97110496A CN 1082406 C CN1082406 C CN 1082406C
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- composite bed
- pipeline
- oil cylinder
- repairing
- spinning
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Abstract
The present invention provides a method for manufacturing or repairing an oil cylinder and a pipeline by using compound materials. Carbon steel pipes or alloy steel pipes are used as base layers of an oil cylinder and a pipeline, stainless steel pipes or other anti-corrosive metal pipes are used as compound layers, and two layers of metal are integrally compounded by adopting a rotary press method. The oil cylinder and the pipeline after being compounded can have the characteristics of high intensity and good anti-corrosive performance at the same time. The present invention has the advantages of simple manufacture process, high processing precision, low production cost, long service life and low maintenance cost, is an ideal and advanced technical method at present and is greatly worth popularization and application.
Description
The present invention relates to a kind of method that adopts composite manufacturing or repairing hydro-cylinder and pipeline.
Many important oil cylinders and pipeline all adopt the homogenous material manufacturing now, as mine individual prop oil cylinder, fully mechanized mining supporter oil cylinder and chemical pipeline etc.Because condition of work is special, require oil cylinder and pipeline must possess certain intensity and antiseptic property, if make, often can only satisfy one and require and weaken another requirement of homogenous material.With regard to support (post) oil cylinder, adopt 27 SiMn material manufacturings at present, though can satisfy the supporting intensity requirement, antiseptic property is relatively poor, the operation and maintenance cycle is all shorter.As adopt the good stainless steel material of antiseptic property to make, then can strengthen use cost because of cost is doubled and redoubled.The chemical pipeline strong to the ask for something decay resistance generally selects for use stainless steel material to make, and will take into account its requirement of strength, must strengthen wall thickness, caused the economic problems of cost costliness so again.
The hydraulic prop scrapped because of corrosion every year of China has about 1,000,000 according to statistics, for the reparation of pillar cylinder cavity multiple exploration is arranged once, and the method for employing successively has: metals such as (1) inner chamber plating iron, copper, nickel, chromium; (2) inner chamber spraying resin anticorrosive coat; (3) adopt the metal inner lining cover as composite bed.Adopting composite bed is the at present domestic a kind of new method of attempting of having begun, now adopts bonding and the pultrusion method is compound more, from operating position, adopt bonding method in conjunction with not firm, geometric accuracy is poor, influences serviceability, and the pultrusion method is easily pulled the composite bed inner surface, influences the cylinder body quality.The ZL95223874 that formerly applies for a patent of the present invention proposes the individual prop oil cylinder that a kind of method with spinning is made interior edge carbon steel lining, and ZL96204117 provides a kind of spinning diameter-setting equipment of making compound cylinder body or pipeline of implementing spin-on process.Roller rotation by tapered arrangement, revolve round the sun and move axially the rotational pressure of generation, inside and outside layer parent tube combined closely.Find in the practice that the selection of concrete steps and parameter will play a very important role in the process of implementing spin-on process.
The objective of the invention is at problems of the prior art, a kind of method that adopts composite manufacturing or repairing hydro-cylinder and pipeline is provided, and this method can make composite bed in conjunction with firm, inside surface roughness grade height, etch resistant properties is good, has characteristics such as economical and practical simultaneously.
Technical solution of the present invention is:
With carbon steel pipe or alloy pipe basic unit as oil cylinder and pipeline, be used for satisfying the requirement on oil cylinder or the pipeline strength, as composite bed, in order to satisfy the requirement of product to antiseptic property, the method for taking spinning is one with double layer of metal is compound with stainless steel tube or other non-corrosive metal (NCM) pipe.Concrete steps are:
(1) determines the thickness of composite bed
When making oil cylinder or pipeline, inner chamber reserves the surplus of composite bed, and the surplus size depends on the thickness of composite bed, and general thickness is got 0.3～2.0mm.
When repairing old oil cylinder or pipeline, earlier the boring of inner chamber corrosion part is fallen, according to the internal diameter size behind the bore hole, select the thickness of composite bed, so that oil cylinder and internal diameter of the pipeline after repairing are constant, composite bed thickness is generally got 0.3～3mm.
(2) determine gap between basic unit's internal diameter and the composite bed external diameter
Can be pressed in the parent tube with the composite bed sleeve pipe and to be advisable, general clearance control is at 0.05～0.5mm.
(3) recombination process
Earlier the composite bed sleeve pipe is pressed in the parent tube, end and parent tube with the composite bed sleeve pipe carries out boxing again, spinning head with spinning apparatus screws in inner chamber by welding ends then, the control workpiece rotational frequency and the amount of feeding, it is compound to carry out spinning, composite bed attenuation rate ψ is controlled in 8～95% scopes, and composite bed and basic unit can be combined as a whole securely.
Further describe the present invention below in conjunction with embodiment:
Embodiment adopt wall thickness be the SUS304 stainless steel tube of 0.7mm as composite bed, 27SiKn hydraulic prop oil cylinder is carried out Combined Processing.In the recombination process, earlier the composite bed sleeve pipe is pressed into cylinder cavity, again with an end and the oil cylinder boxing of composite bed sleeve pipe, then spinning head is screwed in cylinder cavity from an end that has welded, utilize a plurality of spinning rollers on the spinning head to carry out spinning, along self axis rotation, an edge composite bed axially moves, and finishes whole spinning process with composite bed on spinning roller one side.During spinning, should determine working speed and swivel feeding amount according to the diameter of oil cylinder and pipeline and the thickness of composite bed, general workpiece rotary speed is controlled at 100～600 rev/mins, spinning head swivel feeding amount fs is controlled at 0.1～0.8mm/ to be changeed, composite bed attenuation rate ψ is controlled in 8～95% scopes, generally should obtain smaller for raising the efficiency the ψ value.The workpiece rotary speed is 400 rev/mins in the present embodiment, and spinning head swivel feeding amount fs is that 0.6mm/ changes, and composite bed attenuation rate ψ is 15%.After spinning is finished, also can be as required the other end of composite bed sleeve pipe and parent tube be carried out boxing, make it airtight fully, reach the corrosion-resistant purpose.
Advantage of the present invention and effect:
But 1, with this method one-shot forming manufacturing or restoring oil cylinder and pipeline, make its possess simultaneously the intensity height, The characteristic that antiseptic property is good can significantly improve service life, greatly reduces manufacturing cost and maintenance cost.
2, basic unit and composite bed bond strength height, more than 99%, destructiveness is tried through bonded area behind the spinning In testing, cylinder body is cut into ring, all can't takes off composite bed with methods such as extruding. Its compound pipeline complex pipeline can carry out The processing such as bending, flange layering and cracking can not occur.
3, composite bed issues raw and cold the sclerosis in shear spinning, and its intensity and inner surface hardness are obviously improved, This is the unexistent characteristics of other composite algorithm.
4, machining accuracy height adopts the method size of finished face precision can reach ± 0.02mm, fully can Satisfy oil cylinder and pipeline to the requirement of precision.
5, level and smooth bright and clean, the no marking of machined surface, its roughness can reach
, can satisfy oil cylinder fully Inner surface is to the requirement of roughness.
6, present mining bracket oil cylinder adopts nondecomposable emulsion as transmission medium, each release After, discharge in a large number liquid to environment. With the method manufacturing or repairing hydro-cylinder, adopt SUS304 stainless Steel can reduce mining cost as transmission medium for water without emulsion like this as composite bed, Eliminate again pollution, protected environment.
Claims (3)
1, a kind of method with composite manufacturing or repairing hydro-cylinder and pipeline, it is characterized in that with carbon steel pipe or alloy pipe basic unit as oil cylinder and pipeline, with stainless steel tube or other non-corrosive metal (NCM) pipe as composite bed, the method that adopts spinning with double layer of metal compound be one, concrete steps are:
(1) determines the thickness of composite bed
When making oil cylinder or pipeline, inner chamber reserves the surplus of composite bed, and the surplus size depends on the thickness of composite bed, and general thickness is got 0.3～2.0mm;
When repairing old oil cylinder or pipeline, earlier the boring of inner chamber corrosion part is fallen, according to the internal diameter size behind the bore hole, select the thickness of composite bed, so that oil cylinder and internal diameter of the pipeline after repairing are constant, composite bed thickness is generally got 0.3～3mm;
(2) determine gap between basic unit's internal diameter and the composite bed external diameter
Can be pressed in the parent tube with the composite bed sleeve pipe and to be advisable, general clearance control is at 0.05～0.5mm;
(3) recombination process
Earlier the composite bed sleeve pipe is pressed in the parent tube, end and parent tube with the composite bed sleeve pipe carries out boxing again, spinning head with spinning apparatus screws in inner chamber by welding ends then, the control workpiece rotational frequency and the amount of feeding, it is compound to carry out spinning, composite bed attenuation rate ψ is controlled in 8～95% scopes, and composite bed and basic unit can be combined as a whole securely.
2, the method with composite manufacturing or repairing hydro-cylinder and pipeline according to claim 1 is characterized in that the workpiece rotary speed is controlled at 100～600 rev/mins, and spinning head swivel feeding amount fs is controlled at 0.1～0.8mm/ to be changeed.
3, the method with composite manufacturing or repairing hydro-cylinder and pipeline according to claim 1, it is characterized in that spinning is finished after, the other end of composite bed sleeve pipe and parent tube carries out boxing, makes composite bed airtight fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97110496A CN1082406C (en) | 1997-05-29 | 1997-05-29 | Method for manufacturing or repairing hydro-cylinder and pipeline using composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97110496A CN1082406C (en) | 1997-05-29 | 1997-05-29 | Method for manufacturing or repairing hydro-cylinder and pipeline using composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1171986A CN1171986A (en) | 1998-02-04 |
| CN1082406C true CN1082406C (en) | 2002-04-10 |
Family
ID=5171462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97110496A Expired - Fee Related CN1082406C (en) | 1997-05-29 | 1997-05-29 | Method for manufacturing or repairing hydro-cylinder and pipeline using composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1082406C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322265C (en) * | 2004-12-21 | 2007-06-20 | 上海宝钢综合开发公司 | Gas pipe-line composite reinforcement construction and construction method thereof |
| CN108895240A (en) * | 2018-07-26 | 2018-11-27 | 郑州新锐石油工程技术有限公司 | Method of the composite material to pipeline rehabilitation reinforcement or enhancing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228385Y (en) * | 1995-10-17 | 1996-06-05 | 王保东 | Spinning diameter fixing device for making composite cylinder |
| CN2252914Y (en) * | 1996-02-03 | 1997-04-23 | 王保东 | Single support cylinder with simple steel bushing inside |
-
1997
- 1997-05-29 CN CN97110496A patent/CN1082406C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228385Y (en) * | 1995-10-17 | 1996-06-05 | 王保东 | Spinning diameter fixing device for making composite cylinder |
| CN2252914Y (en) * | 1996-02-03 | 1997-04-23 | 王保东 | Single support cylinder with simple steel bushing inside |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1171986A (en) | 1998-02-04 |
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Granted publication date: 20020410 Termination date: 20100529 |