GB/T 4194-2017 English PDF

US$119.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 4194-2017: Creep testing, high temperature treatment and metallographic examination of the tungsten wire
Status: Valid

GB/T 4194: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4194-2017	119	Add to Cart	3 days	Creep testing, high temperature treatment and metallographic examination of the tungsten wire	Valid
GB/T 4194-1984	159	Add to Cart	2 days	Creep testing, high temperature treatment and metallographic examination of the tungsten wires	Obsolete

Similar standards

GB/T 4184   GB/T 5838.43   GB/T 5593   GB/T 4185   

Basic data

Standard ID: GB/T 4194-2017 (GB/T4194-2017)
Description (Translated English): Creep testing, high temperature treatment and metallographic examination of the tungsten wire
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L90
Classification of International Standard: 31.030
Word Count Estimation: 6,673
Date of Issue: 2017-07-31
Date of Implementation: 2018-02-01
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 4194-2017: Creep testing, high temperature treatment and metallographic examination of the tungsten wire

---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.
Creep testing, high temperature treatment and metallographic examination of the tungsten wire ICS 31.030 L90 National Standards of People's Republic of China Replacing GB/T 4194-1984 Tungsten wire creep test, high temperature treatment and metallographic examination methods Creeptesting, hightemperaturetreatmentandmetalographicexamination 2017-07-31 Posted 2018-02-01 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 4194-1984 "tungsten filament creep test, high temperature treatment and metallographic examination methods." And GB/T 4194-1984 The main changes are as follows. --- Remove the test machine model (see 1.1.1); --- Increasing the diameter requirements, and the measurement of diameter micrometer accuracy from 0.01mm to 0.002mm (see 3.1); --- Elevator current speed quantization (see 3.1); --- Clean the tungsten surface graphite milk with sodium hydroxide from pure to pure (see 3.1); --- Vacuum units from mmHg to Pa (see 3.1); --- High temperature treatment specimen diameter nominal value from 0.40mm to 0.39mm (see 3.1.3); --- Modify the insulation current during high temperature treatment, and increase the fuse test to get the fusing current of the tungsten wire sample (see 3.1.3); --- Clearly indicate the longitudinal cross-section of the wire material microstructure examination (see 3.2); --- Metallographic samples inlaid solder from PbSn to AgSn (see 3.2.2); --- Metallographic sample polishing and etching, increase annotation, as long as the same effect can be achieved, you can use other methods of polishing and etching (see 3.2.2). Please note that some of this document may be patentable. The issuing agencies of this document do not bear the responsibility of identifying these patents. This standard by the People's Republic of China Ministry of Industry and Information Technology (E) centralized. This standard by the Chengdu Rainbow Industry Co., Ltd. is responsible for drafting. The main drafters of this standard. Wang Jinsong, Liu Yun, Zhao Denghua. This standard replaces the standards previously issued as. --- GB/T 4194-1984. Tungsten wire creep test, high temperature treatment and metallographic examination methods

1 Scope

This standard specifies the tungsten filament creep test, high temperature treatment and metallographic examination methods. This standard applies to the determination of residual tungsten filament creep elongation and tungsten creep test and high temperature treatment after the metallographic examination.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 4181 tungsten wire 3 creep test, high temperature treatment and metallographic examination 3.1 creep test and high temperature treatment 3.1.1 Equipment, instruments, tools and materials Requires the following equipment, instruments, tools and materials. a) high temperature creep testing machine; b) steel ruler (1000mm, accuracy 1mm); c) micrometer (accuracy of 0.002mm); d) heating device; e) folding the mold; f) cleaning tank g) NaOH (chemically pure). 3.1.2 Creep test 3.1.2.1 sample φ1.25mm tungsten wire, the sample surface quality should meet the requirements of GB/T 4181, the diameter of (1.25 ± 0.01) mm. 3.1.2.2 Preparation of test specimens According to the following procedure for sample preparation. a) Cut the specimen to 418 mm long and ensure that both ends are not cleaved. Heat the tip to about 800 ° C with a heating device and insert it rapidly Bending the mold into a small hook bent 90 °, at both ends of the small hook length of about 4mm and perpendicular to each other, as shown in Figure 1 shape; ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 4194-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 4194-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 4194-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 4194-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 4194-2017?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4194-2017 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.