Stannum-based composite babbit metal and method for preparing welding wire

A technology of composite babbitt alloy and babbitt alloy, which is applied in the direction of metal processing equipment, welding medium, manufacturing tools, etc.

Inactive Publication Date: 2011-11-23
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has also been reported in tin-based lead-free solders to add reinforcing phases in the form of particles.

Method used

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  • Stannum-based composite babbit metal and method for preparing welding wire
  • Stannum-based composite babbit metal and method for preparing welding wire
  • Stannum-based composite babbit metal and method for preparing welding wire

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Experimental program
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Effect test

Embodiment 1

[0030] A tin-based composite babbitt alloy, comprising a babbitt alloy matrix and magnetic particles, wherein the weight percentage of the magnetic particles is 1 to 10%, and the balance is the babbitt alloy matrix, and the babbitt alloy matrix includes: Sb, Cu and Sn, its weight percentage: Sb 5-13%, Cu 1-10%, Sn balance. The magnetic particles at least include Fe, Co, Ni, Fe 2 o 3 , Fe 3 o 4 One of the particles, the particle size of the magnetic particles is 0.05-50 μm. In this embodiment, the weight percentage of magnetic particles is 1%, 6% or 10%; the weight percentage of Sb, Cu and Sn in the Babbitt alloy matrix is ​​Sb 5%, Cu 1%, Sn balance, Sb 7% , Cu 4%, Sn balance, or, Sb13%, Cu 10%, Sn balance; the magnetic particles can be Fe, Co, Ni, Fe 2 o 3 , Fe 3 o 4 One of the particles, it can also be Fe, Co, Ni, Fe 2 o 3 , Fe 3 o 4 Any combination of particles; magnetic particles with a particle size of 0.05, 15 or 50 μm.

Embodiment 2

[0032] A tin-based composite babbitt alloy, comprising a babbitt alloy matrix and magnetic particles, wherein the weight percentage of the magnetic particles is 2%, and the balance is the babbitt alloy matrix, and the grade of the babbitt alloy matrix is ​​ZCHSnSb11-6, The magnetic particles are Fe, and the particle diameter of the magnetic particles is 30 μm. refer to figure 1 , dark Fe particles are evenly distributed on the light-colored Babbitt alloy matrix. refer to Figure 6 Compared with the Babbitt alloy without Fe particles, the wear volume of Babbitt alloy containing 2% Fe particles is reduced by 14.3%, and the wear resistance is improved. The wear test is carried out on the MM-200 wear testing machine, using GCr15 steel grinding wheel Oil grinding, load 300N, sliding line speed 1m / s, wear time 20min.

Embodiment 3

[0034] A tin-based composite babbitt alloy, comprising a babbitt alloy matrix and magnetic particles, wherein the weight percentage of the magnetic particles is 4%, and the balance is a babbitt alloy matrix, and the grade of the babbitt alloy matrix is ​​ZCHSnSb11-6, The magnetic particles are Fe, and the particle diameter of the magnetic particles is 30 μm. refer to figure 2 , in the Babbitt alloy structure, the black needle-like or star-like crystals are ε(Cu6Sn5) phase, coarse and unevenly distributed, refer to image 3 , In Babbitt alloy containing 4% Fe particles, the black ε (Cu6Sn5) phase is refined and evenly distributed. refer to Figure 4 , when the tin-based babbitt alloy is wetted on the iron sheet, the magnetic field has no effect on the babbitt alloy, refer to Figure 5 , When the tin-based babbitt alloy containing 4% Fe particles is wetted on the iron sheet, after the magnetic field acts, the spreading area increases and the wettability improves. refer to ...

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Abstract

The invention relates to stannum-based composite babbit metal. The stannum-based composite babbit metal comprises 1 to 10 weight percent of magnetic particles and the balance of babbit metal matrix, wherein the babbit metal matrix comprises 5 to 13 weight percent of Sb, 1 to 10 weight percent of Cu and the balance of Sn. A method for preparing a welding wire from the composite babbit metal comprises the following steps of: mixing babbit metal powder and the magnetic particles uniformly; heating the mixture to 450 to 500 DEG C under the protection of a soldering flux; stirring and casting in the magnetic field; and preparing a wire material of 0.1 to 3 mm from the alloy by an extruding and drawing process. The babbit metal powder is prepared by the following steps of: mixing 5 to 13 weightpercent of Sb, 1 to 10 weight percent of Cu and the balance of Sn; heating the mixture to a melting state; and under the protection of nitrogen, preparing babbit metal powder from the molten liquid by using ultrasonic atomization equipment. The stannum-based composite babbit metal refines alloy crystal particles, improves wear resistance and obviously improves wettability and weldability on a steel matrix under the action of magnetic field.

Description

Technical field [0001] The present invention is a wear -resistant material and welding material field, which specializes in a high -wear -resistant composite Papa alloy welding wire. [0002] Background technique [0003] Wear -resistant materials are the core of the field of new materials, which plays an important role in promoting and supporting the development of high -tech. In the field of global new materials research, wear -resistant materials account for about 85%.The alloy used as abrasion -resistant materials mainly includes copper -based alloy, zinc conformal alloy, aluminum alloy, lead consequences and tinlocular alloy.Among these materials, tinl alloys and aluminum -based alloys are most used. [0004] Skyba's alloy has the characteristics of reduced abrasion -resistant materials, which is suitable for wear -resistant components that rotate relatively low -hardness shafts.Compared with other wear -resistant materials, it has better adaptability and compression, and is...

Claims

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Application Information

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IPC IPC(8): B23K35/26B23K35/40B23K9/04
Inventor 周健陈旭姚瑶薛烽白晶
Owner SOUTHEAST UNIV
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