CN101403031A - Weldless steel tube hole shrinkage - Google Patents

Weldless steel tube hole shrinkage Download PDF

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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
Application number
CNA2007101810913A
Other languages
Chinese (zh)
Inventor
王笑银
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CNA2007101810913A priority Critical patent/CN101403031A/en
Publication of CN101403031A publication Critical patent/CN101403031A/en
Pending legal-status Critical Current

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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

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  • 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

Weldless steel tube hole shrinkage
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)

  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).
CNA2007101810913A 2007-10-07 2007-10-07 Weldless steel tube hole shrinkage Pending CN101403031A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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