Composite material of wear-resisting rod piece and preparation method thereof

A technology of composite materials and wear-resistant rods, applied in the direction of chemical instruments and methods, layered products, metal layered products, etc., can solve the problems of complex manufacturing process, low production efficiency, thermal shock fatigue, etc., and achieve simple production process, Low investment in equipment and high bonding strength

Inactive Publication Date: 2011-03-09
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Put a cylindrical ceramic sleeve on the low-carbon steel wire rod, and bond it with an adhesive to make a rod-shaped material, which takes advantage of the high wear resistance of ceramics and the low price of low-carbon steel, but the ceramic sleeve is in the process of use. It is easy to be damaged by impact, and the life span is limited
[0005] Chinese patent CN85108954 discloses a method for making a metal sieve plate with a wear-resistant surfacing layer, which is characterized in that the sieve holes are processed on the steel plate first, and then made of casting molding materials with 3% to 5% water glass Fill the sieve hole with high temperature resistant non-metallic paste, and then use arc or plasma arc to surfacing wear-resistant alloy on the surface of the steel plate with holes. Low efficiency, difficult to mass-produce
The sieve plate working at high temperature fails due to high temperature oxidation, high temperature creep fracture, thermal shock fatigue and high temperature wear, etc.

Method used

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  • Composite material of wear-resisting rod piece and preparation method thereof
  • Composite material of wear-resisting rod piece and preparation method thereof
  • Composite material of wear-resisting rod piece and preparation method thereof

Examples

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preparation example Construction

[0051] There are two preparation methods for the above-mentioned wear-resistant rod composite material, method one (see figure 2 ) includes the following steps:

[0052] (1) Choose a cross-sectional area of ​​3mm 2 ~3000mm 2 The metal rod 1, the length of the metal rod 1 is arbitrarily determined according to needs. Pickling or mechanical methods are used to remove dirt such as rust and oil on the surface of the metal rod 1 .

[0053] The pickling adopts the existing hydrochloric acid or sulfuric acid pickling process, and the mechanical method adopts the existing wire brush derusting process.

[0054] (2) The metal rod 1 prepared in step (1) is vertically inserted into the former 5 at the lower part of the ladle 3 through the guide mechanism 2 and the existing feeding mechanism 9 . The guide mechanism 2 and the drawing mechanism 8 at the lower part of the ladle 3 ensure that the metal rod 1 passes through the center of the former 5, and make the gap between the latter an...

Embodiment 1

[0075] Prepare wear-resistant rod composite materials, the core metal rod 1 is low-alloy steel Q345, the geometric shape of the cross-section is a circle with a diameter of 18mm, the wear-resistant alloy layer 10 is high-chromium alloy cast iron, the thickness is 4mm, and the wear-resistant alloy The alloy composition of layer 10 is designed (mass %): 3.5C, 24.0Cr, 0.25B, 0.7Mn, 0.5Si, 0.8V, S less than 0.035, P less than 0.035, and the rest is Fe. The wear-resistant rod composite material can be used for screening sintered ore and other materials with abrasive wear.

[0076] (1) The cross-sectional diameter is selected to be 18mm (the area is 254.34mm 2 ) bar-shaped Q345 steel with a length of 1.2m. The existing hydrochloric acid pickling process is used to remove dirt such as rust and oil on the surface of the rod-shaped steel, and the metal rod 1 is obtained.

[0077] (2) The metal rod 1 prepared in step (1) is vertically inserted into the former 5 at the lower part of th...

Embodiment 2

[0089] Prepare bimetal wear-resistant rod composite material, the core metal rod 1 is Q235 low-carbon steel, the geometric shape of the cross-section is a circle with a diameter of 6.5mm, the wear-resistant alloy layer 10 is high-chromium alloy cast iron, and the thickness is 2mm. The alloy composition of the wear-resistant alloy layer 10 is designed (mass %): 3.8C, 22.0Cr, 0.5Mn, 0.8Si, 1.2V, 1.2Mo, S less than 0.035, P less than 0.035, and the remainder being Fe.

[0090] (1) The cross-sectional diameter is selected to be 6.5mm (the area is 33.17mm 2 ) rod-shaped Q235 low-carbon steel wire rod with a length of 0.8m. The rust on the surface of Q235 was removed by the existing wire brush derusting process, and the metal rod 1 was obtained.

[0091] (2) The metal rod 1 prepared in step (1) is vertically inserted into the former 5 at the lower part of the ladle 3 through the guide mechanism 2 and the existing feeding mechanism 9 . The guide mechanism 2 and the billet drawing m...

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Abstract

The invention relates to a composite material of a wear-resisting rod piece and a preparation method thereof. The composite material of the wear-resisting rod piece is low in cost, convenient in processing and good in wear resistance, can be used for manufacturing sieve plates of various working conditions and can be used for other fields. The composite material of the wear-resisting rod piece ismainly composed of a metal rod piece as a core part and a surrounding wear-resisting alloy layer arranged along the length direction of the rod piece, and the metal rod piece and the surrounding wear-resisting alloy layer are in metallurgical bonding; and the thickness of the wear-resisting alloy layer is 1-10 mm.

Description

[0001] technical field [0002] The invention relates to a composite material, in particular to a wear-resistant rod composite material and a preparation method thereof. Background technique [0003] At present, screening equipment is widely used at home and abroad to classify materials, or to remove large and small impurities in materials through screening, such as vibrating screens is a common screening equipment. The sieve plate of the vibrating screen is a spare part with relatively large consumption. Using rod material to make sieve plates is a simple and highly productive method, and the amount of sieve plates in this form is increasing day by day. The length of the rod material is much larger than the dimensions in the other two directions, and the shape and size of the rod can be described by the two main geometric elements of the cross section and the axis of the rod. The cross-section refers to the section perpendicular to the length direction of the rod, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B15/18C22C38/22C22C38/38B22D19/08B22D19/16B22D11/041
Inventor 孙俊生李梦实孙逸群
Owner SHANDONG UNIV
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