GB/T 3848-2017 English PDF

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GB/T 3848-2017: Hard metals -- Determination of (the magnetization) coercivity
Status: Valid

GB/T 3848: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3848-2017	119	Add to Cart	3 days	Hard metals -- Determination of (the magnetization) coercivity	Valid
GB/T 3848-1983	159	Add to Cart	2 days	Hardmetals. Determination of(the magnetization) coercivity	Obsolete

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GB/T 3488.4   GB/T 5124.4   GB/T 3850   GB/T 3849.1   

Basic data

Standard ID: GB/T 3848-2017 (GB/T3848-2017)
Description (Translated English): Hard metals -- Determination of (the magnetization) coercivity
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H16
Classification of International Standard: 77.160
Word Count Estimation: 6,653
Date of Issue: 2017-09-29
Date of Implementation: 2018-04-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 3848-2017: Hard metals -- Determination of (the magnetization) coercivity

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Hardmetals - Determination of (the magnetization) coercivity ICS 77.160 H16 National Standards of People's Republic of China Replacing GB/T 3848-1983 Carbide coercive (magnetic) force measurement method 2017-09-29 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 3848-1983 "Cemented carbide coercive (magnetic) force measurement method", this standard and GB/T 3848-1983 phase Than the main technical changes are as follows. --- Remove the relevant provisions of the carbide samples; --- Increased chart number, chart title and table title; --- The coercive (magnetic) force symbol to HcM; --- In the "7 Test Report", add the "test report should include the following." The contents of the statement. This standard is proposed by China Nonferrous Metals Industry Association. This standard by the National Non-ferrous Metal Standardization Technical Committee (SAC/TC243) centralized. This standard was drafted unit Xiamen Jinlu Special Alloy Co., Ltd., Zigong Carbide Co., Ltd., Zhuzhou Cemented Carbide Group have Limited company, Chongyi Zhangyuan Tungsten Industry Co., Ltd. The main drafters of this standard. Fan Zhi Rui, Zhang Shouquan, Sun Xiaoyu, Jiang Yuan Xiang, Juan, Zhang Weidong, Liao Silan. This standard replaces the standards previously issued as. --- GB/T 3848-1983. Carbide coercive (magnetic) force measurement method

1 Scope

This standard specifies the cemented carbide (magnetic) force measurement equipment, procedures, results and test reports. This standard applies to containing more than 3% ferromagnetic material as binder cemented carbide (magnetic) force determination.

2 principle

The sample is magnetized in a DC magnetic field to a state of magnetic saturation of the technology, and then the size of the reverse magnetic field required for the sample to be completely demagnetized (M = 0) That is, the coercivity (magnetic) force HcM to be measured.

3 symbol and name

The unit of coercivity (magnetic) force HcM is kA/m, which is the magnitude of the reverse magnetic field applied to reduce the magnetization of the sample to zero (see Figure 1), the symbols and names in Table 1. Figure 1 magnetic hysteresis loop Table 1 Symbol and name Symbol name unit H Magnetic field strength kA/m M sample magnetization kA/m ......

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