Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Welding material for ZG50Ni35Cr17

A technology of zg50ni35cr17 and welding materials, applied in the direction of welding/cutting medium/material, welding medium, welding equipment, etc., can solve the problems of hidden dangers in stability and safety, unsatisfactory high-temperature mechanical properties of welds, etc., and achieve superior synergistic functions , high temperature mechanical properties advantages, the effect of excellent corrosion resistance

Inactive Publication Date: 2018-09-07
李泳澎
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is found in the application that the high temperature mechanical properties of the weld are not ideal
This defect makes the stability and safety of ZG50Ni35Cr17 products in high-temperature application environments hidden dangers, thus limiting the application of ZG50Ni35Cr17 products in certain high-temperature environments that require mechanical properties

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Welding material for ZG50Ni35Cr17
  • Welding material for ZG50Ni35Cr17

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Two nickel-based rolled plates with specifications of 450mm×75mm×20mm were selected as welding samples, and a V-shaped butt groove was adopted. The groove type was: the length of the blunt side was 1mm, and the groove angle was 60°.

[0020] The above-mentioned welding samples were welded by GTAW welding process; the welding machine model used was WSM-4000 inverter pulse argon arc welding machine; the welding material used was welding wire with a diameter of φ2.4mm, and its composition was: C 0.03% , Cr 16.8%, Fe7.2%, Mn 0.4%, Nb 2.45%, Si 0.85%, S 0.002%, P 0.002%, Ni balance.

[0021] The connection mode between the welding machine and the welding sample is direct current connection. The welding process includes the following steps:

[0022] (1) Clean the groove surface of the sample to be welded, keep it clean and dry, then connect the groove according to the above-mentioned V-shaped butt joint method, fix the position by spot welding, and then pass argon gas for pr...

Embodiment 2

[0026] Two nickel-based pipe sections with specifications of φ120mm (outer diameter) × 15mm (wall thickness) × 150mm (length) were selected as welding samples, and U-shaped butt joint grooves were adopted. The groove form was blunt edge length 1mm, radius 4mm, Groove angle 25°.

[0027] Using the same welding consumables, equipment and welding process as in Example 1, the above welding samples were welded. The connection mode between the welding machine and the welding sample is direct current connection.

[0028] The welding process includes the following steps:

[0029] (1) Clean the groove surface of the sample to be welded, keep it clean and dry, then connect the groove according to the above U-shaped butt joint method, fix the position by spot welding, and then pass argon gas for protection;

[0030] (2) Carry out bottom welding on the welding sample, the welding current is 90A, the voltage is 12V, the welding speed is about 0.8mm / s, and two layers are welded;

[0031]...

Embodiment 3

[0032] Embodiment 3 (comparison)

[0033] The welding material in Example 1 was changed to ERNiCr-3 welding wire with a diameter of φ2.4mm, and other conditions remained unchanged.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a welding material for ZG50Ni35Cr17 and relates to the field of welding materials. The welding material comprises, by mass percentage, not larger than 0.5% of C, 16.0-18.0% ofCr, 6.0-10.0% of Fe, not larger than 1.0% of Mn, 1.5-3.0% of Nb, 0.6-1.0% of Si, not larger than 0.015% of S, not larger than 0.015% of P and not smaller than 70.0% of Ni. A welding seam obtained by the welding material has good surface appearance, the welding material not only has excellent corrosion resistance and normal temperature mechanical properties, but also shows remarkably improved hightemperature mechanical properties, the quality of the product can be greatly improved, and the service life of the product can be greatly prolonged.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and in particular relates to a welding material used for ZG50Ni35Cr17. Background technique [0002] The high temperature resistant casting alloy ZG50Ni35Cr17 has the following chemical composition (mass percentage): C0.4~0.6%, Cr15.0~19.0%, Ni 33.0~37.0%, Mo≤0.5%, Mn≤1.5%, Si0.5~2.0 %, S≤0.03%, P≤0.03%, Fe balance. The alloy has excellent high temperature corrosion resistance, oxidation resistance and cold and hot processing properties, and is widely used in the petrochemical field. [0003] The application of alloys is inseparable from welding, and the quality of welds is an important factor affecting the overall performance of metal products (such as mechanical properties and corrosion resistance). If the welding material is improperly selected or of poor quality, the weld will become the "short board" of the overall performance of the product. Complementary welding consumables ar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K9/167
CPCB23K35/304B23K9/167B23K35/0261
Inventor 李泳澎
Owner 李泳澎
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com