Vanadium-strengthened wear resistant surfacing electrode and preparation method thereof

A technology of surfacing electrodes and welding cores, applied in welding equipment, welding media, manufacturing tools, etc., can solve the problems of fracture and spalling, low toughness reserve, etc., and achieve less welding fume, resistance to pores and welding cracks, and stable welding arc. Effect

Inactive Publication Date: 2015-04-01
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Commonly used cast iron surfacing alloys, although they have high hardness, have low toughness reserves, and are prone to fracture and spalling under high impact loads, resulting in failure

Method used

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  • Vanadium-strengthened wear resistant surfacing electrode and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] figure 1 It is a process flow chart of the preparation method described in the present invention.

[0038] Such as figure 1 Shown: the preparation technology of the embodiment of the present invention 1 is:

[0039] (1) Dry blending of the components of the coating: in terms of mass percentage, weigh the components of the coating: marble: 45%; fluorite: 25%; titanium dioxide: 8%; zircon sand: 6%; Feldspar: 4%; rare earth silicon 8%; vanadium iron: after 4%, dry blending;

[0040] (2) Wet mixing: wet mixing the components after the dry mixing of the drug skin with the binder potassium sodium water glass;

[0041] (3) Preparation of vanadium-enhanced wear-resistant surfacing electrode: the wet-mixed material and the welding core are rubbed, dried, and dried to obtain the target product. The welding core is 1Cr13 martensitic stainless steel with a diameter of Φ3.2mm, and The thickness of the drug skin is 2.0~2.5mm. After testing, the average hardness of the electrode ...

Embodiment 2

[0043] The preparation technology of the embodiment of the present invention 1 is:

[0044] (1) Dry blending of the components of the coating: in terms of mass percentage, weigh the components of the coating: marble: 43%; fluorite: 23%; titanium dioxide: 8%; zircon sand: 6%; Feldspar: 6%; Rare earth silicon: 6%; Vanadium iron: 8%, after dry mixing;

[0045] (2) Wet mixing: wet mixing the components after the dry mixing of the drug skin with the binder clay;

[0046] (3) Preparation of vanadium-enhanced wear-resistant surfacing electrode: the wet-mixed material and the welding core are rubbed, dried, and dried to obtain the target product. The welding core is 2Cr13 martensitic stainless steel with a diameter of Φ4.0mm, and The thickness of the drug skin is 2.0~2.5mm. After testing, the average hardness of the electrode surfacing layer is 52HRC.

Embodiment 3

[0048] The preparation technology of the embodiment of the present invention 1 is:

[0049] (1) Dry mixing of the components of the drug coating: in terms of mass percentage, weigh the components of the drug coating Marble: 50%; Fluorite: 15%; Titanium dioxide: 4%; Zircon sand: 8%; Potassium Feldspar: 7%; rare earth silicon: 5%; vanadium iron: 10%, dry blending;

[0050] (2) Wet mixing: wet mixing the components after dry mixing of the drug skin with the binder slaked lime;

[0051](3) Preparation of vanadium-enhanced wear-resistant surfacing electrode: the wet-mixed material and the welding core are rubbed, dried, and dried to obtain the target product. The welding core is 1Cr13 martensitic stainless steel with a diameter of Φ4.0mm, and The thickness of the drug skin is 2.0~2.5mm. After testing, the average hardness of the electrode surfacing layer is 58HRC.

[0052] The steel core used in the above embodiments has a diameter of Φ3.0-5.0 mm.

[0053] The present invention...

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Abstract

The invention discloses a vanadium-strengthened wear resistant surfacing electrode and a preparation method thereof. The vanadium-strengthened wear resistant surfacing electrode comprises a welding core and a coating which coats the surface of the welding core through adhesive, and the coating comprises 32-50% of marble, 15-25% of fluorite, 4-10% of titanium dioxide, 3-8% of zircon sand, 3-8% of potassium feldspar, 4-8% of rare earth silicon and 3-10% of ferrovanadium by weight. The vanadium-strengthened wear resistant surfacing electrode is strengthened by vanadium and made of raw materials sold on the market, the hardness and wear resistance of the metal of the surfacing layer can be obviously improved, the good welding technique performance of the electrode is guaranteed, and the cost is low; the application proves that arc striking and re-arcing are easy to perform when surfacing electrode, the electric arc is stable and difficult to break, and the blowing force is large; the welding fume is less, the splashing particle is small, and the deposition efficiency is high; the slag is removed easily, the weld ripples are fine and close, the surface is smooth, and crack, undercut and the like defects are avoided.

Description

technical field [0001] The invention relates to a vanadium-enhanced wear-resistant surfacing welding electrode and a preparation method thereof, which belongs to the technical field of welding materials and is suitable for composite manufacturing and remanufacturing of rolls, excavator bucket teeth, steam turbine blades, and the like. Background technique [0002] Construction machinery components serving in abrasive conditions are not only subject to wear damage, but also often accompanied by impact, corrosion and other damage. Although the commonly used cast iron surfacing alloys have high hardness, they have low toughness reserves, and are prone to fracture and spalling under high impact loads, resulting in failure. [0003] It is generally believed that an effective way to enhance the surface strength of materials and improve wear resistance is to provide surface hardness and toughness of materials. The ideal structure is to uniformly distribute high melting point, high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/32B23K35/40
CPCB23K35/365B23K35/3602B23K35/404
Inventor 杨可杨克包晔峰蒋永锋
Owner HOHAI UNIV CHANGZHOU
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