ICS

77.160

CCS

H16

中華人民共和國國家標(biāo)準(zhǔn)

GB/T26050—2024

代替GB/T26050—2010

硬質(zhì)合金

金屬元素含量的測定

X射線熒光光譜法

Hardmetals—Determinationofcontentsofmetallicelements—X-rayfluorescence

spectrometry

2024-09-29發(fā)布2025-04-01實(shí)施

國家市場監(jiān)督管理總局發(fā)布

國家標(biāo)準(zhǔn)化管理委員會

GB/T26050—2024

目次

前言

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Ⅲ

1

范圍

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1

2

規(guī)范性引用文件

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1

3

術(shù)語和定義

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1

4

原理

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2

5

干擾元素

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2

6

試劑

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2

7

儀器與設(shè)備

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2

8

樣品

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2

9

試驗(yàn)步驟

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2

9.1

試料

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2

9.2

平行試驗(yàn)

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3

9.3

預(yù)處理

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3

9.4

灼燒系數(shù)

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3

9.5

試樣樣片的制備

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3

9.6

標(biāo)準(zhǔn)樣片的制備

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4

9.7

測定

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4

10

試驗(yàn)數(shù)據(jù)處理

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4

11

允許差

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4

12

試驗(yàn)報(bào)告

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5

Ⅰ

GB/T26050—2024

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/T26050—2010《硬質(zhì)合金X射線熒光測定金屬元素含量熔融法》。與

GB/T26050—2010相比，除結(jié)構(gòu)調(diào)整和編輯性改動外，主要技術(shù)變化如下：

a）更改了Cr、Fe、Ni、Ta、Ti、V的測定范圍（見第1章，2010年版的第2章）；

b）更改了原理（見第4章，2010年版的第3章）；

c）刪除了試劑無水過氧化鋇、無水碳酸鋇、無水四硼酸鈉（見2010年版的5.1、5.2）；

d）增加了試劑無水四硼酸鋰+偏硼酸鋰混合熔劑（見6.2）；

e）更改了脫模劑（見6.6，2010年版的5.6）；

f）增加了“瓷舟、天平”（見7.8、7.9）；

g）增加了灼燒系數(shù)的計(jì)算（見9.4）；

h）更改了試驗(yàn)步驟（見第9章，2010年版的第8章）；

i）增加了試驗(yàn)數(shù)據(jù)處理（見第10章）；更改了數(shù)值修約規(guī)則（見第10章，2010年版的11.2）；

j）增加了“允許差”，刪除了偏差（見第11章，2010年版的11.1）。

請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)識別專利的責(zé)任。

本文件由中國有色金屬工業(yè)協(xié)會提出。

本文件由全國有色金屬標(biāo)準(zhǔn)化技術(shù)委員會（SAC/TC243）歸口。

本文件起草單位：崇義章源鎢業(yè)股份有限公司、自貢硬質(zhì)合金有限責(zé)任公司、株洲硬質(zhì)合金集團(tuán)有

限公司、廈門鎢業(yè)股份有限公司、南昌硬質(zhì)合金有限責(zé)任公司、國標(biāo)（北京）檢驗(yàn)認(rèn)證有限公司、

深圳市中金嶺南有色金屬股份有限公司韶關(guān)冶煉廠、廣東省科學(xué)院工業(yè)分析檢測中心、江西省鎢與稀土

產(chǎn)品質(zhì)量監(jiān)督檢驗(yàn)中心。

本文件主要起草人：鐘志強(qiáng)、徐國鉆、張欣、何紅梅、王培、王英、顏曉華、龔斌、張曉丹、

楊宇惠、吳愛華、張方、于磊、張強(qiáng)、何劍文、師世龍、李建國、袁冬梅、周明俊、陳浩楠。

本文件于2010年首次發(fā)布，本次為第一次修訂。

Ⅲ

GB/T26050—2024

硬質(zhì)合金

金屬元素含量的測定

X射線熒光光譜法

1范圍

本文件描述了熔融后測定硬質(zhì)合金中鈷、鉻、鐵、錳、鉬、鈮、鎳、鉭、鈦、釩、鎢和鋯含量的

X射線熒光光譜法，難熔金屬碳化物中金屬元素含量的測定也可參照執(zhí)行。

本文件適用于鈮、鉭、鈦、釩、鎢和鋯的碳化物及用這些碳化物合成的預(yù)燒結(jié)和燒結(jié)硬質(zhì)合金中

鈷、鉻、鐵、錳、鉬、鈮、鎳、鉭、鈦、釩、鎢和鋯含量的測定，各元素測定范圍見表1。

表1測定范圍

質(zhì)量分?jǐn)?shù)

元素

%

Co0.05～50.00

Cr0.05～5.00

Fe0.05～10.00

Mn0.05～2.50

Mo0.05～5.00

Nb0.05～15.00

Ni0.05～20.00

Ta