JIS B6914-2002

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J
IS
JAPANESE
I
N
D USTR
I
AL
STANDARD
Translated and Published by
Japanese Standards Association
Process
of
carburizing and
carbonitriding, quenching and
tempering
of
iron and steel
ICs
25.200;
77.140.01
Reference number
:
JIS
B
6914
:
2002
(E)
PROTECTED
BY
COPYRIGHT
11
s
B
6914
:
2002
Foreword
This translation has been made based on the original Japanese Industrial
Standard revised by the Minister
of
Economy, Trade and Industry through
deliberations at the Japanese Industrial Standards Committee, as the
result
of
proposal for revision of Japanese Industrial Standard submitted
by the Heat Treatment Trade Association of Japan (HTTAJ)/the Japanese
Standards Association (JSA) with the draft being attached, based on the
provision of Article 12 Clause
1
of
the Industrial Standardization Law.
Consequently
JIS
B
6914
:
1997 is replaced with
this
Standard.
In this revision? the title
of
Standard? scope, material for processing, types
of processing? and the quality of processed goods have been revised, and
newly the types and symbol of processing, environmental protection to
the heat treatment
oil
and
so
on, and Annex (normative)
:
History
of
sintered ferritic material, and quality and test method of processed goods
have been provided.
Attention is drawn
to
the possibility that some parts
of
this Standard
may conflict with
a
patent right, application for a patent after opening
to
the public, utility model right
or
application for registration of utility
model after opening
to
the public which have technical properties. The
relevant Minister and the Japanese Industrial Standards Committee
are not responsible for identifying the patent right, application for
a
patent after opening to the public, utility model right or application for
registration
of
utility model after opening to the public which have the
said technical properties.
Date of Establishment: 1970-10-01
Date of Revision: 2002-01-20
Date of Public Notice in Official Gazette: 2002-01-21
Investigated by: Japanese Industrial Standards Committee
Standards Board
Technical Committee on Iron and Steel
JE
B
6914
:
2002,
First English edition published in
2002-10
Translated and published by: Japanese Standards Association
4-1-24,
Akasaka, Minato-ku,
Tokyo,
107-8440
JAPAN
In the event of any doubts arising as
to
the contents,
the original JIS is
to
be
the final authority.
O
JCA2002
All rights reserved. Unless otherwise specified, no part
of
this publication may be reproduced or
utilized
in
any
form or
by
any means, electronic
or
mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
Printed
in
Japan
PROTECTED
BY
COPYRIGHT
JAPANESE INDUSTRIAL STANDARD
@
JIS
B
6914:
2002
Process
of
carburizing and
carbonitriding, quenching and
tempering
of
iron and
steel
1
This Japanese Industrial Standard specifies the process of carburizing
and carbonitriding, quenching and tempering of iron and steel (hereafter referred
to
as
“processing”).
Remarks
:
This Standard shall not be applied
to
cast iron.
Scope
2
Normative references
The standards listed in Attached Table
1
contain pro-
visions which, through reference in this Standard, constitute provisions
of
this Stan-
dard. The most recent editions of the standards (including amendments) shall be
applied,
3
Definitions
6905
and the following definitions apply.
For the purposes of this Standard, the definitions given in
JIS
B
material for processing
The parts which become the object
of
processing.
The materials
for
processing are machinery parts, jigs, apparatuses,
or
parts
thereof which are iron and steel products under almost
or
nearly completed con-
ditions.
processed goods
ing
to
this Standard.
single body
A
unit or lot of processed goods.
atmospheric furnace
A
heating furnace which
is
capable of controlling the
oxidation
or
reduction, and decarburization
or
carburization of the atmosphere
used
for
heating the material for processing
so
as
to
meet the purpose of pro-
ces sing.
hot bath vessel
An
equipment which
is
capable of heating or quenching and
cooling the material for processing in hot bath
of
oil,
molten
salt,
molten metal,
etc.
The material for processing having been processed accord-
air furnace
A
furnace
for
heating the material for processing in air or fuel
burnt gas.
vacuum furnace
An equipment which
is
capable
of
carburizing and quench-
ing
or
carbonitriding and quenching by heating the material for processing in
the carburizing gas or inert gas with reduced pressure, as well
as
it is
a
heat-
ing furnace which is capable of regulating the pressure
to
meet the purpose of
processing. For cooling, any one
of
water, oil
or
gas shall be used.
plasma carburizing furnace and plasma carbonitriding furnace
A
fur-
nace which is capable
of
carburizing
or
carbonitriding with plasma by glow dis-
charge generated between a cathode
of
the material for processing and
an
anode,
in carburizing
or
carbonitriding atmosphere with reduced pressure. Some fur-
naces provide cooling equipment for quench hardening.
PROTECTED
BY
COPYRIGHT
摘要：

JIS B6914-2002 是日本工业标准中关于钢铁材料淬火与回火处理工艺的规范文件，属于热处理技术领域的重要基准标准。该标准于2002年修订发布，取代了早期的版本，详细规定了碳钢和合金钢在淬火及回火过程中的温度控制、冷却介质选择、时间参数设定以及硬度检验方法。内容涵盖预处理、加热规范、冷却速率、回火温度范围及显微组织评价等关键技术要求，适用于机械制造、汽车、模具等行业中需获得均匀回火马氏体组织的零件加工。该标准为热处理操作提供了系统性指导，帮助生产方确保产品力学性能的可靠性并满足质量验证需求

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作者：阿拉丁 分类：国际标准 价格：14星币 属性：20 页 大小：1.08MB 格式：PDF 时间：2024-09-15

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