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 Notched broach for u5mm high hardness impact specimen

Notched broach for u5mm high hardness impact specimen

Product brand: U5mm high hardness impact specimen notch broach

Classification: impact specimen notch broach

The notched broach of European standard u5mm high hard impact specimen and HuiFu u5mm broach meet the European standard GB / t229-2007, EN10045, iso148, iso083 and other international standards. The U-shaped notch or key shaped notch is 5mm deep, and the radius of the bending part at the bottom of the notch is 1mm. For export enterprises

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1 Notched broach for European standard u5mm high hardness impact specimen

HuiFu u5mm broach meets European standard GB/T229-2007, EN10045, iso148, iso083 and other international standards. Notch, U-shaped notch, 5mm deep, curved at the bottom. Provide impact test notch broach for export enterprises. The notch broach of the impact sample is 375mm in length and 40mm in width. Shandong HuiFu Automation Co., Ltd U V V-notch broach is suitable for all kinds of impact sample notch broaching machines, including hydraulic double knife broaching machines, electric broaching machines and manual broaching machines. It can be configured according to the actual needs of users V type 2mm U type 2mm U type 3mm or U type 5mm Any one or more of them. The notch of impact sample is formed by broaching once eight Second, the operation is simple and reliable.

2、 European standard u5mm Advantages of notched broach for impact specimen:

HuiFu impact sample notch broach is of the highest quality Material, special process precision processing and manufacturing. Longer working life of broach, longer working life twenty 000 Multiple. 2mm broach fifty-four Teeth (depth 5mm Notch broach is seventy-four Teeth), and finally four There are two shaping teeth, and each tooth is different four Wire, notch high precision, processed V Type notch or U T-Notch is consistent with GB/T229-2007 Metallic materials Charpy pendulum impact test method 》、 GB 2106-80 Metal Charpy( V Impact test method EN10045 Pendulum impact test of metallic materials and ASTM E23-02a Standard impact test method for notched specimens of metallic materials ISO148 And other domestic and foreign standards.

It can be configured according to the actual needs of users V type 2mm U type 2mm U type 3mm or U type 5mm One or more of them. GB national standard U Die mouth 5mm 3 mm ; European standard 5mm ; and American Standard special broach for notch.

3、 European standard u5mm Application industry of impact sample notch broach:

This series broach is the first choice for notch sample preparation in metallurgy, machinery manufacturing, boiler and pressure vessel, vehicle and ship, engineering, steel plate, steel pipe, wind power generation, hardware, metal, casting, pump, valve, solar energy, ordnance, fastener, diesel engine, railway, electric power, anchor chain, iron tower, petroleum, chemical industry, aerospace, physical and chemical laboratory, scientific research and other departments. It is also a special impact test accessory for the physical and chemical laboratory of various mechanical and physical properties testing, analysis and research departments of metals and new materials applied in various fields of national economy. Long term users: Hangang, Lingang, WISCO, Shanghai Baosteel Research Institute, Qinnan heavy industry, Wuqiao heavy industry group, etc.

Extension: verification of pendulum impact testing machine

EN 10045-1 is based on the following ISO standards:

ISO 83-1976: Steel Charpy impact test (u-notch) ISO 148-1983: Steel Charpy impact test (V-notch)

List of national standards corresponding to European standards in preparation

Application object and field

This European standard describes the Charpy impact test (u-notch and V-notch) for metallic materials. For some special metal materials and applications, Charpy impact test may be the subject of specific standards and special requirements.
Reference standard
ISO 286-1-1988, ISO limits and fits - Part 1: general, tolerances and deviations

Charpy impact test for materials - Part 45: impact test for metallic materials

One shot impact with a swinging pendulum on the specimen with a gap in the middle and supported at each end in the state defined below. The absorption function was measured by Joule. The absorbed work is a measure of the impact strength of a material.

 Notched broach for European standard u5mm impact specimen
Specimen

1 the sampling and quantity of test pieces and their location shall be in accordance with the relevant product standards. 5.2 the standard specimen length shall be 55mm and square section with side length of 10mm. There should be a gap in the middle of the length. There are two types of gaps specified.

a) The radius of the bending part at the bottom of the notch is 0.25 mm.

If the standard test piece cannot be prepared, the small size test piece with the width of 7.5mm or 5mm can be used (see Table 2), and the notch should be opened on the narrow surface of the test piece.

b) The U-shaped notch or key shaped notch is 5mm deep, and the radius of the bending part at the bottom of the notch is 1mm.

All specimens should be machined, but if it is a foundry specimen with two sides parallel to the symmetry plane of notch, it can not be machined.

The symmetry plane of notch should be perpendicular to the longitudinal axis of the specimen.

4 the tolerance of the specified dimensions of the test piece shall be as given in Table 2.

1) In preparation. At the time of publication of this European standard, reference can be made to the corresponding national or international standards, and the list is listed in Appendix A.

5 as long as the relevant product standards permit, test pieces with a width different from those shown in Table 2 may be used, for example, a test piece whose width is equal to the thickness of the product. However, the comparison of the results is meaningful only when the specimens of the same form and size are compared.

6 machining shall minimize changes to the test piece (e.g. due to cold working or heating). The notch shall be carefully prepared so that no visible grooves parallel to the bottom of the notch are produced.

The specimen may be marked on any surface not in contact with the anvil or support at least 5 mm from the notch to avoid cold working due to marking.

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