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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. The particles are mainly used to improve the mechanical properties. There is no such report in Babbitt alloy.

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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