GB/T 41882-2022 PDF English
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Copper and copper alloy powders for Additive manufacturing
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GB/T 41882-2022: PDF in English (GBT 41882-2022) GB/T 41882-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.160; 25.030
CCS H 71
Copper and copper alloy powders for additive
manufacturing
ISSUED ON: OCTOBER 12, 2022
IMPLEMENTED ON: MAY 01, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
Introduction ... Error! Bookmark not defined.
1 Scope ... Error! Bookmark not defined.
2 Normative references ... Error! Bookmark not defined.
3 Terms and definitions ... Error! Bookmark not defined.
4 Reagents or materials ... Error! Bookmark not defined.
5 Apparatus ... Error! Bookmark not defined.
6 Test procedure ... Error! Bookmark not defined.
7 Result calculation ... Error! Bookmark not defined.
8 Quality control ... Error! Bookmark not defined.
Copper and copper alloy powders for additive
manufacturing
1 Scope
This document specifies the designation and classification, technical requirements, test
methods, inspection rules, marking, packaging, transportation, storage, accompanying
documents, and order form content of copper and copper alloy powders for additive
manufacturing.
This document applies to copper and copper alloy powders for additive manufacturing
prepared by processes such as plasma atomization, gas atomization, plasma
spheroidization.
2 Normative references
The contents of the following documents, through normative references in this text,
constitute indispensable provisions of this document. Among them, for dated references,
only the edition corresponding to that date applies to this document. For undated
references, the latest edition (including all amendments) applies to this document.
GB/T 1479.1 Metallic powders - Determination of apparent density - Part 1: Funnel
method
GB/T 1480 Metallic powders - Determination of particle size by dry sieving
GB/T 1482 Metallic powders - Determination of flow rate - Calibrated funnel
methods (Hall flowmeter)
GB/T 5121 (all parts) Methods for chemical analysis of copper and copper alloys
GB/T 5162 Metallic powders - Determination of tap density
GB/T 5314 Powders for powder metallurgical purposes - Sampling
GB/T 19077 Particle size analysis - Laser diffraction methods
GB/T 35351 Additive manufacturing - Terminology
The chemical composition analysis of the product is carried out in accordance with the
provisions of GB/T 5121 (all parts).
6.2 Particle size
The determination of particle size composition of the product is carried out in
accordance with the provisions of GB/T 1480. The determination of particle size
distribution of the product is carried out in accordance with the provisions of GB/T
19077.
6.3 Apparent density
The apparent density of the product is determined in accordance with the provisions of
GB/T 1479.1.
6.4 Tap density
The tap density of the product is determined in accordance with the provisions of GB/T
5162.
6.5 Flow rate
The determination of flow rate of the product is carried out in accordance with the
provisions of GB/T 1482.
6.6 Appearance quality
The appearance quality of the product is visually inspected under natural scattered light.
6.7 Others
The sphericity ratio and the hollow particle ratio of the product are determined through
consultation between the supplier and the purchaser.
7 Inspection rules
7.1 Inspection and acceptance
7.1.1 The product shall be inspected by the supplier or a third party, to ensure that the
product quality complies with the provisions of this document and the order form. It
shall fill in the accompanying documents.
7.1.2 The purchaser can inspect the received products according to the provisions of
this document and the order form. If the inspection result is inconsistent with the
provisions of this document or the order form, within 45 days from the date of receipt
of the product, it shall be submitted to the supplier in writing. The supplier and the
8 Marking, packaging, transportation, storage, and
accompanying documents
8.1 Marking
Each minimum packaging unit of the product shall have a mark, which indicates:
a) Supplier name;
b) Product name;
c) Designation or code;
d) Lot number;
e) Powder specification (category);
f) Net weight;
g) Number of this document;
h) Marks such as "moisture-proof" and "prevent inhalation".
8.2 Packaging
Products can be packaged in double-layer vacuum plastic bags; or packaged in clean
plastic barrels or metal barrels as container units. The packaging container shall ensure
its integrity during transportation. It is not easy to be damaged, damp or expose the
product to foreign pollutants.
During the packaging process, the environment shall be strictly controlled, to avoid
pollution. It is recommended to use inert gas-filled protective packaging for Class I
products; and that Class II products are packaged in an atmospheric environment. The
product packaging mass is 5 kg. It can also be packaged according to the requirements
of the purchaser.
8.3 Transportation
The product shall be transported in a covered environment. During the transportation
process, it shall be protected from rain and moisture. Severe collision and mechanical
extrusion are strictly prohibited. During the handling process, it shall be loaded and
unloaded lightly. Do not turn it upside down. It is strictly forbidden to approach fire and
fire sources.
8.4 Storage
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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