GB/T 10422-2025燒結金屬摩擦材料橫向斷裂強度的測定

ICS77.160

CCSH72

中華人民共和國國家標準

GB/T10422—2025

代替GB/T10422—2002

燒結金屬摩擦材料橫向斷裂強度的測定

Sinteredmetalfrictionmaterials—Determinationoftransverserupturestrength

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/T10422—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試驗原理·················································································································1

5儀器設備·················································································································1

5.1試驗裝置···········································································································1

5.2計量器具···········································································································2

6樣品·······················································································································2

7試驗步驟·················································································································3

8試驗結果·················································································································3

9不確定度·················································································································3

10試驗報告···············································································································4

圖1橫向斷裂強度試驗裝置示意圖··················································································2

Ⅰ

GB/T10422—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/T10422—2002《燒結金屬摩擦材料橫向斷裂強度的測定》，與GB/T10422—

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“范圍”的內容（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）更改了“試驗原理”并獨立成章（見第4章，2002年版的2.1）；

d）更改了“裝置”并獨立成章，更改標題為“儀器設備”，增加了對計量器具的要求（見第5章，

2002年版的2.2）；

e）增加了裝置附圖中的尺寸標注“L=25.0mm±0.2mm”（見圖1，2002年版的圖1）；

f）更改了試樣并單獨成章，更改標題為“樣品”，并更改了樣品的要求（見第6章，2002年版

的2.3）；

g）增加了樣品不準許試驗的情況（見6.4）；

h）更改了“試驗步驟”并單獨成章，修改了步驟的內容（見第7章，2002年版的2.4）；

i）更改了“-100目球形粉末”代替“球形粉末”（見7.3，2002年版的2.4.3）；

j）更改了“試驗結果”并單獨成章，并增加了數值修約（見第8章，2002年版的2.5）；

k）更改了橫向斷裂強度計算公式中“樣品寬度”和“樣品厚度”的單位（見8.1，2002年版的2.5）；

l）增加了“不確定度”章節（見第9章）；

m）增加了試驗報告的內容（見第10章，2022年版的第3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：周煥輝、張登、呂波、王秀飛、王振波、蔣俊勇、何晨、許成法。

本文件及其所代替文件的歷次版本發布情況為：

——1989年首次發布為GB/T10422—1989，2002年第一次修訂；

——本次為第二次修訂。

Ⅲ

GB/T10422—2025

燒結金屬摩擦材料橫向斷裂強度的測定

1范圍

本文件描述了燒結金屬摩擦材料橫向斷裂強度的測定方法。

本文件適用于燒結金屬摩擦材料矩形樣品在控制條件下橫向均勻加載的斷裂強度的測定。

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。

GB/T8170數值修約規則與極限數值的表示和判定

3術語和定義

下列術語和定義適用于本文件。

3.1

橫向斷裂強度transverserupturestrength

R

tr

將具有一定形狀和尺寸的樣品平放在規定支距的兩支點上，在支距中點集中施加靜載荷直至樣品

破斷時，樣品橫截面單位面積所承受的應力。

注：單位為MPa。

4試驗原理

本文件的試驗方法采用三點彎曲加載簡支梁強度測定原理。

a）試驗裝