GB/T 39816-2021 PDF English
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Master alloy electrode for titanium and titanium alloy casting
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GB/T 39816-2021: PDF in English (GBT 39816-2021) GB/T 39816-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.50
CCS H 64
Master alloy electrode for titanium and titanium alloy
casting
ISSUED ON: MARCH 09, 2021
IMPLEMENTED ON: OCTOBER 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Technical requirements ... 4
5 Test method ... 6
6 Inspection rules ... 6
7 Marking, packaging, transportation, storage and accompanying documents 7
8 Order form content ... 9
Master alloy electrode for titanium and titanium alloy
casting
1 Scope
This document specifies the technical requirements, test methods, inspection
rules, marking, packaging, transportation, storage and accompanying
documents and order forms of master alloy electrode for titanium and titanium
alloy casting.
This document applies to master alloy electrode for titanium and titanium alloy
casting (hereinafter referred to as master alloy electrode).
2 Normative references
The contents of the following documents constitute the indispensable clauses
of this document through normative references in the text. For dated references,
only the version corresponding to that date is applicable to this document; for
undated references, the latest version (including all amendments) is applicable
to this document.
GB/T 2524, Titanium sponge
GB/T 4698, Methods for chemical analysis of titanium sponge, titanium and
titanium alloys
GB/T 15073, Casting titanium and titanium alloys
YS/T 1262, Method for chemical analysis of titanium sponge, titanium and
titanium alloys - Determination of multielement content - Inductively coupled
plasma atomic emission spectrometry
3 Terms and definitions
No terms and definitions need to be defined in this document.
4 Technical requirements
4.1 Raw materials and preparation methods
4.4.2 The two end faces of the master alloy electrode are allowed to retain the
center hole that is drilled during processing.
5 Test method
5.1 The chemical composition analysis is carried out according to GB/T 4698
or YS/T 1262; the chemical composition arbitration analysis is carried out
according to GB/T 4698.
5.2 Size and shape inspection shall be carried out with measuring tools of
corresponding precision.
5.3 Appearance quality inspection shall be carried out with visual inspection and
measuring tools of corresponding precision.
6 Inspection rules
6.1 Inspection and acceptance
6.1.1 The product shall be inspected by the supplier or a third party, to ensure
that the product quality meets the requirements of this document and the
requirements of the purchase order.
6.1.2 The buyer can inspect the received products in accordance with the
provisions of this document. If the inspection result does not conform to the
provisions of this document or the purchase order, it shall be submitted to the
supplier in written form, and the supplier and the buyer shall negotiate and
resolve. Objections of dimensions and appearance quality shall be filed within
one month from the date of receipt of the product; objections of other
performances shall be filed within three months from the date of receipt of the
product. If arbitration is required, it shall be determined by both the supplier and
the buyer in the buyer’s joint sampling or negotiation.
6.2 Batch
Master alloy electrodes shall be submitted for acceptance in batches; each
batch shall be composed of master alloy electrodes of the same designation,
specification, preparation method, state and continuous production not
exceeding 20 smelting furnaces.
6.3 Inspection items and sampling rules
The inspection items, sampling position and quantity of the master alloy
electrode shall meet the requirements of Table 2.
7.2 Packaging, transportation, storage
7.2.1 The master alloy electrodes shall be packed in a wooden box or wooden
bracket, and fixed firmly; loading, unloading, and transportation shall be
handled gently.
7.2.2 Master alloy electrodes shall be stored in a dry indoor environment, and
shall not be mixed with acid or alkaline media.
7.3 Accompanying documents
Each batch of products shall be accompanied by accompanying documents,
which shall include supplier information, product information, standard number
of this document, date of manufacture or packaging date, and should also
include:
a) Product quality guarantee:
● Main performance and technical parameters of the product;
● Product features (including the features of manufacturing process and
raw materials);
● Responsibility for product quality;
● Quality certification obtained by the product and various analysis and
inspection results checked and printed by the technical supervision
department of the supplier.
b) Product certification;
● Inspection items and their results or inspection conclusions;
● Batch or batch number;
● Inspection date;
● Inspector's signature or seal.
c) Inspection report and finished product inspection report during product
quality control.
d) Product instructions: correct handling, use, and storage methods.
e) Others.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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