GB/T 36634-2018 (English Version)

Standard No.: GB/T 36634-2018
Language: Chinese, Available in English version
Release Date: 2018
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 36634-2018

Scope: This method is suitable for determining the silver content of silver-plated copper-clad steel wire

Introduction

GB/T 36634—2018 Standard Overview

This standard specifies the classification, model, requirements, test methods, inspection rules, packaging, product marking, transportation and storage of silver-plated copper-clad steel wire for electronic products.

Standard Framework Comparison

Chapter	Main Content	In-depth Analysis
1 Scope	Scope of Application and Specification Content	Clearly applicable to silver-plated copper-clad steel wire for electronic products based on copper-clad steel wire.
3 Classification and Model	Classification Basis and Model Compilation Method	It is divided into 4 categories according to relative conductivity and soft and hard state. The model consists of type code, category code, nominal diameter and plating level.
4 Requirements	Material requirements, dimensional deviation and performance indicators	Including key parameters such as baseline material, silver content, diameter deviation, DC resistivity.

Implementation Suggestions

1. Choose the right plating level

Choose A to E plating levels according to application scenarios and performance requirements.
The higher the silver content, the stronger the conductivity and oxidation resistance, but the higher the cost.

2. Ensure material quality

Use silver ingots that meet GB/T 4135 and copper-clad steel wire specified in SJ/T 11411.
Raw material inspection should include composition analysis, density test and surface treatment inspection.

3. Quality control process

Establish a complete quality inspection system covering appearance inspection, diameter measurement, resistivity test and coating continuity verification.
Ensure that the accuracy of the test equipment meets the standard requirements (such as the resolution of the metallographic microscope is not less than 0.1μm).

4. Storage and transportation precautions

The product should be stored in a dry and ventilated environment to avoid moisture and corrosion.
Prevent mechanical damage and temperature and humidity changes from affecting the coating during transportation.

Background and Technology Evolution

As electronic products develop towards high frequency and miniaturization, silver-plated copper-clad steel wire has become a key material due to its excellent conductivity and oxidation resistance. This standard is based on the technical foundation of SJ/T 11411-2010 "Copper Clad Steel Wire" and is optimized and expanded in combination with the actual needs of high-frequency cables and connectors.

GB/T 36634-2018 history

2018 GB/T 36634-2018 Silver-coated copper-clad steel wire for electronic products