CN101403031A - Weldless steel tube hole shrinkage - Google Patents
Weldless steel tube hole shrinkage Download PDFInfo
- Publication number
- CN101403031A CN101403031A CNA2007101810913A CN200710181091A CN101403031A CN 101403031 A CN101403031 A CN 101403031A CN A2007101810913 A CNA2007101810913 A CN A2007101810913A CN 200710181091 A CN200710181091 A CN 200710181091A CN 101403031 A CN101403031 A CN 101403031A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- quenching
- steel tube
- weldless steel
- tube hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Heat Treatment Of Articles (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention relates to a technology which applies heat treatment to reduce the diameter of a seamless steel pipe, and mainly solves the problem that an expansion cylinder and the inner aperture of a hydraulic cylinder used for industry, agriculture and engineering machinery are damaged. Compared with the shielded welding of electroplating and carbon dioxide, the technology has more practical significance on environmental protection, energy-saving and high efficiency.
Description
Affiliated technical field
Weldless steel tube is with middle and high frequency Equipment for Heating Processing.The heating quenching technology.According to certain technical parameter, reach the purpose that diameter of steel tube shrinks.
Background technology
Modern industry, agricultural and every engineering project thereof are widely applied hydraulic pressure, pneumaticly are the automatic production preferred unit.Hydro-cylinder, cylinder etc. are done the equipment of cylinder body with weldless steel tube so, and total amount accounts for 80~90%.Bloated cylinder of generation and internal breakdown are more and more serious in liquefaction cylinder, the cylinder use.How to be welded as means automatically now and to repair cylinder body with plating iron or carbonic acid gas.Plating, electric welding have caused to environment damage, wasted energy in a large number and have prolonged the duration of processing.Yet middle and high frequency heat treatment technics enjoys favor with efficient, energy-saving and environmental protection.Middle and high frequency heat treatment technics is used widely.
Summary of the invention
Middle and high frequency thermal treatment makes cylinder diameters such as hydro-cylinder, cylinder shrink 0~1.5 millimeter.Through boring cylinder, Hang mill, reach the purpose of reparation again.
Embodiment
Cylinder body is stuck on the quenching machine.Inductor block heating, quenching with suitable diameter.The principle that utilization is expanded with heat and contract with cold reaches cylinder body and is retracted in the technical indicator.
Claims (1)
- A kind of New Technology of Heat Treatment to hydro-cylinder, cylinder, the technological process (use of cool time length, hardening liquid) that comprises quenching, the use-pattern of quenching machine, the technical parameter of equipment (making of the voltage of equipment, electric current, frequency, ruhmkorff coil), the survey report of quenching cylinder spare (original paper, metallographic sheet, the back metallographic sheet that quenches, the back material analysis report of quenching).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2007101810913A CN101403031A (en) | 2007-10-07 | 2007-10-07 | Weldless steel tube hole shrinkage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2007101810913A CN101403031A (en) | 2007-10-07 | 2007-10-07 | Weldless steel tube hole shrinkage |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101403031A true CN101403031A (en) | 2009-04-08 |
Family
ID=40537189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2007101810913A Pending CN101403031A (en) | 2007-10-07 | 2007-10-07 | Weldless steel tube hole shrinkage |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101403031A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103433686A (en) * | 2013-08-14 | 2013-12-11 | 山西乡宁焦煤集团台头前湾煤业有限公司 | Cylinder barrel repairing process |
CN103695624A (en) * | 2013-12-19 | 2014-04-02 | 常州天山重工机械有限公司 | Heat treatment process for remedying too high expansion of inner gear ring |
CN103894778A (en) * | 2014-04-02 | 2014-07-02 | 焦作市广成液压机械制造有限公司 | Novel reducing reshaping technology for mining oil cylinder |
CN111041164A (en) * | 2019-12-25 | 2020-04-21 | 浙江金固股份有限公司 | Heat treatment repairing method for roller type die |
-
2007
- 2007-10-07 CN CNA2007101810913A patent/CN101403031A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103433686A (en) * | 2013-08-14 | 2013-12-11 | 山西乡宁焦煤集团台头前湾煤业有限公司 | Cylinder barrel repairing process |
CN103695624A (en) * | 2013-12-19 | 2014-04-02 | 常州天山重工机械有限公司 | Heat treatment process for remedying too high expansion of inner gear ring |
CN103894778A (en) * | 2014-04-02 | 2014-07-02 | 焦作市广成液压机械制造有限公司 | Novel reducing reshaping technology for mining oil cylinder |
CN103894778B (en) * | 2014-04-02 | 2016-07-06 | 焦作市广成液压机械制造有限公司 | Mining oil cylinder undergauge reproduces manufacturing process |
CN111041164A (en) * | 2019-12-25 | 2020-04-21 | 浙江金固股份有限公司 | Heat treatment repairing method for roller type die |
CN111041164B (en) * | 2019-12-25 | 2022-01-25 | 浙江金固股份有限公司 | Heat treatment repairing method for roller type die |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090408 |