Build-up welding electrode for composite double-metal big gear re-manufacturing technology

A composite gear and surfacing welding rod technology, applied in the field of material science and engineering, can solve the problems of difficult to manufacture heating furnaces for heat treatment, economic losses, waste of energy, etc., and achieve the effects of reducing energy consumption, avoiding pollution, and improving service life

Inactive Publication Date: 2005-07-27
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large diameter of large gears, it is difficult to manufacture a heating furnace for its heat treatment. Even if such a large heating furnace can be manufactured, due to its large volume

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0009] Examples:

[0010] The following disclosure is an embodiment of the present invention. The chemical composition of the electrode coating is (wt%): rutile 2.4, marble 46.1, fluorite 21.5, quartz 2.7, clay 4.6, high carbon ferrochrome 2.8, high carbon ferromanganese 3.5 , Ferrosilicon 2.6, ferro titanium 8.8, ferromolybdenum 5.2, cerium oxide 2.8, metallic nickel 5. The welding core adopts H08A steel welding wire. The used binder water glass has a modulus of 2.9 and a concentration (Baume degree) of 49. For ferrosilicon, ferrochrome and ferromanganese, passivation is required before use. The passivation process is for ferrosilicon powder at 730℃, ferrochrome powder at 560℃, and ferromanganese powder at 320℃. The above metal powders are all passivated after passivation. Keep it warm for 1 hour. The relevant powders in the above formula are mixed with a blender, and then water glass is added to stir evenly, the electrode is extruded with an electrode coater, the electrode is dr...

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PUM

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Abstract

A welding electrode for the build-up welding to manufacture large bimetal gear is composed of steel wire core H08A, adhesive (water glass), and welding agent prepared from rutile, marble, fluorspar, quartz, argil, high-carbon ferrochromium, high-carbon ferromanganese, ferrosilicon, ferrotitanium, ferromolybdenum, cerium oxide and nickel.

Description

technical field [0001] The invention belongs to the field of material science and engineering. Background technique [0002] Large gears are transmission parts widely used in metallurgical machinery, mining machinery, agricultural machinery, petrochemical machinery and other industries. In the traditional manufacturing process of smelting, casting, forging, heat treatment and machining, not only consumes a lot of energy, but also Seriously pollute the environment; even after decommissioning large gears still cause environmental pollution. Through green remanufacturing technology, it can restore its original shape and size, and improve its service life, thereby reducing energy waste and environmental pollution during its manufacturing process. [0003] Remanufacturing technology is to use original parts, adopt high-tech surface engineering technology and other processing technologies to restore the size, shape and performance of parts, form remanufactured blanks, and form re...

Claims

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Application Information

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IPC IPC(8): B23K35/22
Inventor 杨庆祥王爱荣刘建华
Owner YANSHAN UNIV
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