GB/T 26053-2023Carbide-based thermal spraying powders (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 26053-2010 "Cemented Carbide Spray Welding Powder". Compared with GB/T 26053-2010, except for structural adjustment and compilation In addition to editorial changes, the main technical changes are as follows.

a) Changed the scope of application (see Chapter 1, Chapter 1 of the 2010 edition);

b) Changed product classification (see Chapter 4, 3.1 of the 2010 edition);

c) Delete the brand name and examples of brand representation (see 3.1 and 3.2 of the 2010 edition);

d) Changed chemical composition requirements (see 5.1, 3.3 of the 2010 edition);

e) The particle size specification has been changed, and the particle size composition and particle size distribution requirements have been added (see 5.2, 3.4 of the 2010 edition);

f) The bulk density requirements have been changed (see 5.3, 3.4 of the 2010 edition);

g) Changed liquidity requirements (see 5.4, 3.4 of the 2010 version);

h) Appearance quality requirements have been changed (see 5.5, 3.5 of the 2010 version);

i) Packaging requirements have been changed (see 8.2, 6.2 of the 2010 version);

j) Delete "storage period not exceeding six months" (see 6.3.2 of the 2010 version);

k) Added "granularity specifications" to the order form (see Chapter 9).

1 Scope

This document specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and follow-up of carbide-based thermal spray powders. line documents and order form contents.

This document applies to carbide-based thermal spray powders produced by the agglomeration-sintering method or the sintering-crushing method.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 1479.2 Determination of bulk density of metal powders Part 2: Scott volumetric method

GB/T 1480 Metal powder dry screening method for particle size determination

GB/T 1482 Standard funnel method for determination of flowability of metal powders (Hall flow meter)

GB/T 5124.3 Methods for chemical analysis of cemented carbide Part 3: Determination of cobalt content by potentiometric titration method

GB/T 5158.4 Determination of oxygen content by metal powder reduction method Part 4: Determination of total oxygen content by reduction-extraction method

GB/T 5314 Powder sampling method for powder metallurgy

GB/T 19077 Particle size distribution laser diffraction method

GB/T 20255.2 Chemical analysis methods for cemented carbide - Determination of cobalt, iron, manganese and nickel amounts Flame atomic absorption spectrometry

GB/T 20255.5 Chemical analysis method for cemented carbide - Determination of chromium content Flame atomic absorption spectrometry

GB/T 42275 Determination of total carbon content of cemented carbide high-frequency combustion infrared absorption method/thermal conductivity method

3 Terms and definitions

There are no terms or definitions to be defined in this document.

4 Categories

Products are divided into 12 product categories according to their chemical composition, see Table 1.