ICS77.160

CCSH72

中華人民共和國(guó)國(guó)家標(biāo)準(zhǔn)

GB/T10421—2025

代替GB/T10421—2002

燒結(jié)金屬摩擦材料密度的測(cè)定

Sinteredmetalfrictionmaterials—Determinationofdensity

2025?06?30發(fā)布2026?01?01實(shí)施

國(guó)家市場(chǎng)監(jiān)督管理總局

國(guó)家標(biāo)準(zhǔn)化管理委員會(huì)發(fā)布

GB/T10421—2025

目次

前言··························································································································Ⅲ

1范圍·······················································································································1

2規(guī)范性引用文件········································································································1

3術(shù)語(yǔ)和定義··············································································································1

4原理·······················································································································1

5試劑·······················································································································1

5.1浸漬試劑···········································································································1

5.2液體·················································································································1

6儀器設(shè)備·················································································································1

6.1分析天平···········································································································1

6.2稱重裝置···········································································································2

6.3容器要求···········································································································2

6.4溫度計(jì)··············································································································2

6.5吊絲·················································································································2

7樣品·······················································································································2

8試驗(yàn)步驟·················································································································2

9試驗(yàn)結(jié)果·················································································································4

10精密度··················································································································5

10.1重復(fù)性·············································································································5

10.2再現(xiàn)性·············································································································5

10.3實(shí)驗(yàn)室研究結(jié)果·································································································5

11試驗(yàn)報(bào)告···············································································································5

附錄A（資料性）實(shí)驗(yàn)室研究結(jié)果····················································································6

圖1吊簍法················································································································3

圖2吊盤法················································································································3

表1吊絲的最大推薦直徑······························································································2

表2蒸餾水在空氣中的密度值（標(biāo)準(zhǔn)大氣壓下）···································································3

表A.1密度試驗(yàn)結(jié)果····································································································6

表A.2重復(fù)性、再現(xiàn)性計(jì)算結(jié)果······················································································6

Ⅰ

GB/T10421—2025

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

本文件代替GB/T10421—2002《燒結(jié)金屬摩擦材料密度的測(cè)定》，與GB/T10421—2002相比，

除結(jié)構(gòu)調(diào)整和編輯性改動(dòng)外，主要技術(shù)變化如下：

a）更改了本文件中適用范圍（見第1章，2002年版的第1章）；

b）增加了術(shù)語(yǔ)和定義章節(jié)（見第3章）；

c）增加了原理章節(jié)（見第4章）；

d）增加了試劑章節(jié)（見第5章）；

e）增加了儀器設(shè)備章節(jié)（見第6章）；

f）更改了分析天平的精度要求（見6.1，2002年版的4.1）；

g）增加了“吊絲的最大推薦直徑”（見表1）；

h）更改了試樣要求（見第7章，2002年版的第3章）；

i）更改了所引用標(biāo)準(zhǔn)的條號(hào)（見7.4，2002年版的3.4）；

j）更改了試驗(yàn)步驟中的部分表述（見第8章，2002年版的第4章）；

k）增加了稱量裝置示意圖（見圖1、圖2）；

l）增加了“蒸餾水在空氣中的密度值（標(biāo)準(zhǔn)大氣壓下）”（見表2）；

m）更改了試驗(yàn)結(jié)果章節(jié)（見第9章，2002年版的第5章）；

n）增加了精密度章節(jié)（見第10章）。

請(qǐng)注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別專利的責(zé)任。

本文件由中國(guó)機(jī)械工業(yè)聯(lián)合會(huì)提出并歸口。

本文件起草單位：杭州前進(jìn)齒輪箱集團(tuán)股份有限公司、黃石賽福摩擦材料有限公司、北京優(yōu)材百慕

航空器材有限公司。

本文件主要起草人：楊水余、張國(guó)洪、呂波、王秀飛、閆燕、蔣俊勇、何晨、許成法、徐鯤。

本文件于1989年首次發(fā)布為GB/T10421—1989，2002年第一次修訂，本次為第二次修訂。

Ⅲ

GB/T10421—2025

燒結(jié)金屬摩擦材料密度的測(cè)定

1范圍

本文件描述了燒結(jié)金屬摩擦材料密度的測(cè)定方法。

本文件適用于不帶芯板的燒結(jié)金屬摩擦材料密度的測(cè)定。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過(guò)文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對(duì)應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用于

本文件。