CN102181618A - Protective gas for annealing of metal materials - Google Patents

Protective gas for annealing of metal materials Download PDF

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Publication number
CN102181618A
CN102181618A CN2011100967603A CN201110096760A CN102181618A CN 102181618 A CN102181618 A CN 102181618A CN 2011100967603 A CN2011100967603 A CN 2011100967603A CN 201110096760 A CN201110096760 A CN 201110096760A CN 102181618 A CN102181618 A CN 102181618A
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CN
China
Prior art keywords
annealing
protective gas
hydrogen
metal materials
ratio
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
CN2011100967603A
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Chinese (zh)
Inventor
于付亭
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.)
TIANJIN YIBO STEEL MAKING CO Ltd
Original Assignee
TIANJIN YIBO STEEL MAKING CO Ltd
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 TIANJIN YIBO STEEL MAKING CO Ltd filed Critical TIANJIN YIBO STEEL MAKING CO Ltd
Priority to CN2011100967603A priority Critical patent/CN102181618A/en
Publication of CN102181618A publication Critical patent/CN102181618A/en
Pending legal-status Critical Current

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    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

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  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

The invention discloses protective gas for the annealing of metal materials. In the protective gas, mixed gas comprises 75 percent of hydrogen and 25 percent of nitrogen, and a ratio of the mixed gas containing the hydrogen and the nitrogen is appropriate; and the protective gas is easy and convenient to prepare and high in quality after annealing.

Description

A kind of metallic substance annealed shielding gas that is used for
Affiliated technical field
The present invention relates to a kind of thermal treatment process technology, particularly a kind of metallic substance annealed shielding gas that is used for is suitable for the protective atmosphere shield type bright annealing oven that circulates by force.
Background technology
At present, during the shield type bright annealing oven that circulates by force work, need to charge into shielding gas in the stove, originally the nitrogen Hydrogen shielding gas of Ying Yonging contains nitrogen 96～98%, hydrogen 2～4%.Product behind the clean annealing exists surface quality undesirable, and mechanical property is even inadequately, and the annealing cycle is long partially, the problem of the higher aspect of energy consumption.
Summary of the invention
Problem to be solved by this invention is, overcomes the deficiency of existing proportioning, and a kind of metallic substance annealed shielding gas that is used for is provided.This shielding gas is not only filled a prescription rationally, and preparation is simple, and the good product quality of producing.
The technical solution used in the present invention is:
The ratio of mixed gas is: hydrogeneous ratio is 75%, nitrogenous ratio is 25%.
The invention has the beneficial effects as follows, prescription rationally, preparation is simple, adopts high hydrogen decomposed ammonia as shielding gas, has significantly improved heat transfer efficiency, the annealing cycle has shortened about 10%, has improved anneal capability, has reduced energy consumption; Improve temperature uniformity, guaranteed the mechanical property of product; The inner quality and the surface quality of product all are improved.
Embodiment
Adopt the ammonia resolving device, prepare hydrogeneous ratio 75%, the hydrogen of nitrogenous ratio 25%, nitrogen mixed gas are used through can be used as shielding gas after purification system drying, the purification.
The density of hydrogen is 1/14 of nitrogen, and the thermal conductivity of hydrogen is 7 times of nitrogen.Hydrogen quality is light, and seepage force is strong, can infiltrate the coil of strip interlayer, gives full play to the big characteristics of thermal conductivity, significantly improves heat transfer efficiency.Hydrogen is reducing gas, and at high temperature can make iron oxide reduction is iron.
Make full use of and bring into play advantage and the potential of hydrogen in annealing, improve the annealing product quality, shorten the annealing cycle.

Claims (1)

1. one kind is used for metallic substance annealed shielding gas, and it is characterized in that: the ratio of mixed gas is: hydrogeneous ratio is 75%, nitrogenous ratio is 25%.
CN2011100967603A 2011-04-18 2011-04-18 Protective gas for annealing of metal materials Pending CN102181618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100967603A CN102181618A (en) 2011-04-18 2011-04-18 Protective gas for annealing of metal materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100967603A CN102181618A (en) 2011-04-18 2011-04-18 Protective gas for annealing of metal materials

Publications (1)

Publication Number Publication Date
CN102181618A true CN102181618A (en) 2011-09-14

Family

ID=44567904

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100967603A Pending CN102181618A (en) 2011-04-18 2011-04-18 Protective gas for annealing of metal materials

Country Status (1)

Country Link
CN (1) CN102181618A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102703664A (en) * 2012-05-27 2012-10-03 无锡天辰冷拉型钢有限公司 Low-carbon steel spheroidizing method
CN102923650A (en) * 2012-11-29 2013-02-13 天津市亿博制钢有限公司 Preparation method of reducing gas for annealing metal material
CN112071505A (en) * 2020-09-05 2020-12-11 安徽徽宁电器仪表集团有限公司 Post-twisting continuous annealing type aluminum alloy conductor annealing process

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101716594A (en) * 2009-12-11 2010-06-02 永鑫精密材料（无锡）有限公司 Production process of precise stainless steel band for vehicle sealing pad
CN101716595A (en) * 2009-12-11 2010-06-02 永鑫精密材料（无锡）有限公司 Process for producing accurate stainless steel band applied in electronic industry
CN101871105A (en) * 2010-06-24 2010-10-27 永鑫精密材料（无锡）有限公司 Production technique of high-accuracy cold-rolling carbon-steel steel belt for electronic industry

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101716594A (en) * 2009-12-11 2010-06-02 永鑫精密材料（无锡）有限公司 Production process of precise stainless steel band for vehicle sealing pad
CN101716595A (en) * 2009-12-11 2010-06-02 永鑫精密材料（无锡）有限公司 Process for producing accurate stainless steel band applied in electronic industry
CN101871105A (en) * 2010-06-24 2010-10-27 永鑫精密材料（无锡）有限公司 Production technique of high-accuracy cold-rolling carbon-steel steel belt for electronic industry

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102703664A (en) * 2012-05-27 2012-10-03 无锡天辰冷拉型钢有限公司 Low-carbon steel spheroidizing method
CN102923650A (en) * 2012-11-29 2013-02-13 天津市亿博制钢有限公司 Preparation method of reducing gas for annealing metal material
CN112071505A (en) * 2020-09-05 2020-12-11 安徽徽宁电器仪表集团有限公司 Post-twisting continuous annealing type aluminum alloy conductor annealing process

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Application publication date: 20110914