GB/T 10421-2025燒結金屬摩擦材料密度的測定

ICS77.160

CCSH72

中華人民共和國國家標準

GB/T10421—2025

代替GB/T10421—2002

燒結金屬摩擦材料密度的測定

Sinteredmetalfrictionmaterials—Determinationofdensity

2025?06?30發布2026?01?01實施

國家市場監督管理總局

國家標準化管理委員會發布

GB/T10421—2025

目次

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

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

2規范性引用文件········································································································1

3術語和定義··············································································································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··············································································································2

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

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

8試驗步驟·················································································································2

9試驗結果·················································································································4

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

10.1重復性·············································································································5

10.2再現性·············································································································5

10.3實驗室研究結果·································································································5

11試驗報告···············································································································5

附錄A（資料性）實驗室研究結果····················································································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（標準大氣壓下）···································································3

表A.1密度試驗結果····································································································6

表A.2重復性、再現性計算結果······················································································6

Ⅰ

GB/T10421—2025

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結構和起草規則》的規

定起草。

本文件代替GB/T10421—2002《燒結金屬摩擦材料密度的測定》，與GB/T10421—2002相比，

除結構調整和編輯性改動外，主要技術變化如下：

a）更改了本文件中適用范圍（見第1章，2002年版的第1章）；

b）增加了術語和定義章節（見第3章）；

c）增加了原理章節（見第4章）；

d）增加了試劑章節（見第5章）；

e）增加了儀器設備章節（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）更改了所引用標準的條號（見7.4，2002年版的3.4）；

j）更改了試驗步驟中的部分表述（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（標準大氣壓下）”（見表2）；

m）更改了試驗結果章節（見第9章，2002年版的第5章）；

n）增加了精密度章節（見第10章）。

請注意本文件的某些內容可能涉及專利。本文件的發布機構不承擔識別專利的責任。

本文件由中國機械工業聯合會提出并歸口。

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

航空器材有限公司。

本文件主要起草人：楊水余、張國洪、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

燒結金屬摩擦材料密度的測定

1范圍

本文件描述了燒結金屬摩擦材料密度的測定方法。

本文件適用于不帶芯板的燒結金屬摩擦材料密度的測定。

2規范性引用文件

下列文件中的內容通過文中的規范性引用而構成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應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。