CN211516468U

CN211516468U - Coating brazing filler metal

Info

Publication number: CN211516468U
Application number: CN202020337225.7U
Authority: CN
Inventors: 王立文
Original assignee: Rizhao Dazheng Welding Materials Co ltd
Current assignee: Rizhao Dazheng Welding Materials Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-09-18
Anticipated expiration: 2030-03-17

Abstract

The utility model relates to a weld material technical field, and disclose a coating brazing filler metal, including the coating, the inside brazing filler metal inner core that is provided with of coating, the brazing filler metal inner core includes dampproof course, antirust coat, active layer, oxide layer and thermal stabilization layer, the dampproof course is outmost of coating, one side that the dampproof course is close to the antirust coat is connected with one side that the antirust coat is close to the dampproof course. The utility model discloses a set up the dampproofing of dampproofing course having increased the brazing filler metal inner core, thereby prevent that the solder flux from absorbing moisture and condensing into the piece and drop and corrode the brazing filler metal inner core, rust-resistant property through setting up the antirust coat and having increased the brazing filler metal inner core, the good performance of brazing filler metal inner core has been guaranteed, activity through setting up the active layer and increasing the brazing filler metal inner core, make the brazing filler metal inner core have good toughness and intensity, through setting up the deoxidation nature that the deoxidation layer has increased the brazing filler metal inner core, make the coating can cover brazing filler metal and mother metal uniformly, isolated air effectively, play the guard action.

Description

Coating brazing filler metal

Technical Field

The utility model relates to a weld material technical field, specifically be a coating brazing filler metal.

Background

At present, manual flame brazing of wire or strip-shaped brazing filler metal is mostly adopted for brazing of air conditioners and refrigerator pipelines, the brazing filler metal is dipped in brazing flux for use or the brazing flux is coated on a workpiece in advance during brazing, one-time pre-welding working procedure and operation time are increased, a variable is added in a brazing process, and welding consistency and quality stability are affected. The brazing process has low production efficiency, is difficult to realize automation, is difficult to accurately control the dosage of the brazing filler metal and the brazing flux, depends on the level of an operator mostly in quality of joints, easily produces defects of welding blockage, leakage and the like in brazing seams, and then wastes the brazing filler metal and raw materials due to reworking, repairing and even scrapping, and increases the manufacturing cost. In addition, flux has to be added in excess to ensure the quality of the weld. A large amount of brazing flux volatilizes before playing a role, so that air is polluted, the health of operators is very unfavorable, and the brazing flux is wasted, so that the flux-coated brazing filler metal is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coating brazing filler metal reaches the purpose of environmental protection.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a coating brazing filler metal, includes the coating, the inside brazing filler metal inner core that is provided with of coating, the brazing filler metal inner core includes dampproof course, antirust coat, active layer, deoxidation layer and heat stable layer, the dampproof coat is the outmost of coating, one side that the dampproof coat is close to the antirust coat is connected with one side that the antirust coat is close to the dampproof coat, one side that the antirust coat is close to the active layer is connected with one side that the active layer is close to the antirust coat, one side that the active layer is close to the deoxidation layer is connected with one side that the deoxidation layer is close to the active layer, one side that the deoxidation layer is close to the heat stable layer is connected with one side that the heat stable layer is close to the.

Preferably, the coating uniformly covers the surface of the brazing filler metal inner core, and the outer diameter ratio of the coating to the brazing filler metal inner core is 1: 3.

preferably, the coating is arranged in a circular ring shape, and the brazing filler metal inner core is arranged in a cylindrical shape.

Preferably, the moisture-proof layer is made of an inorganic binder, and the inorganic binder is composed of one or more of borate, phosphate, aluminate, boric anhydride, fluoroborate and inorganic fluoride.

Preferably, the rust-proof layer is made of copper chromium plating powder.

Preferably, the active layer is made of zinc alloy powder.

Preferably, the oxide removal layer is made of copper-based solder powder.

Preferably, the thermally stable layer is made by mixing hot polyvinyl chloride with braze powder.

The utility model provides a coating brazing filler metal. The method has the following beneficial effects:

(1) the utility model has the advantages that the combination of the solder inner core and the coating is firm, the moisture resistance of the solder inner core is increased by the moisture-proof layer, the solder inner core is prevented from absorbing moisture and condensing into blocks to drop and corrode the solder inner core, the rust resistance of the solder inner core is increased by the rust-proof layer, the good performance of the solder inner core is ensured, the activity of the solder inner core is increased by the active layer, the solder inner core has good toughness and strength, the deoxidation property of the solder inner core is increased by the deoxidation layer, the coating can uniformly cover the solder and the base metal, the air is effectively isolated, the protective effect is achieved, the thermal stability of the solder inner core is increased by the thermal stabilization layer, the problem that the solder keeps the stable component and action capacity in the heating process is well ensured, the air pollution of the solder in the using process is solved, and the problem that the residual solder is cleaned after welding to cause the water resource pollution is solved, the purpose of environmental protection is well achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a sectional view of the coating of the present invention.

In the figure: 1 coating, 2 brazing filler metal inner cores, 3 dampproof layers, 4 antirust layers, 5 active layers, 6 oxide removing layers and 7 heat stabilizing layers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-3, the utility model provides a technical solution: the coating brazing filler metal comprises a coating 1, wherein the coating 1 is uniformly covered on the surface of a brazing filler metal inner core 2, and the outer diameter ratio of the coating 1 to the brazing filler metal inner core 2 is 1: 3, the coating 1 is arranged in a circular ring shape, so that the brazing filler metal inner core 2 and the coating 1 are firmly combined, the brazing filler metal inner core 2 is arranged in a cylindrical shape, the brazing filler metal inner core 2 and the coating 1 are high in compactness, the brazing filler metal inner core 2 is arranged in the coating 1, the brazing filler metal inner core 2 comprises a moisture-proof layer 3, an anti-rust layer 4, an active layer 5, a deoxidation layer 6 and a heat stabilizing layer 7, the moisture-proof layer 3 is the outermost layer of the coating 1, the moisture-proof layer 3 is made of an inorganic binder, the inorganic binder is one or more of borate, phosphate, aluminate, boric anhydride, fluoborate and inorganic fluoride, the moisture-proof layer 3 is arranged to increase the moisture resistance of the brazing filler metal inner core 2, the solder is prevented from absorbing moisture and condensing into blocks to fall to corrode the brazing filler metal inner core 2, one side, close to the anti-rust layer 4, of the moisture-proof layer 3 is connected with one side, close to the anti-rust layer 3, the antirust layer 4 is made of copper chromium-plated powder, the antirust property of the brazing filler metal inner core 2 is improved by arranging the antirust layer 4, the good performance of the brazing filler metal inner core 2 is ensured, one side of the active layer 5 close to the oxidation removing layer 6 is connected with one side of the oxidation removing layer 6 close to the active layer 5, the active layer 5 is made of zinc alloy powder, the activity of the brazing filler metal inner core 2 is improved by arranging the active layer 5, the brazing filler metal inner core 2 has good toughness and strength, the brazing filler metal inner core 2 is wear-resistant, the oxidation removing layer 6 is connected with one side of the thermal stabilizing layer 7 close to the oxidation removing layer 6 and is made of copper-based welding powder, the copper-based welding powder is melted to cover and isolate oxidation resistance, a welding surface is cleaned by corrosion, fusion welding is participated, the oxidation removing property of the brazing filler metal inner core 2 is improved by arranging the oxidation removing layer 6, a coating can uniformly cover, play the guard action, thermal stabilization layer 7 is made by heat polyvinyl chloride and brazing powder mixture, through setting up thermal stabilization layer 7, the thermal stability of brazing filler metal inner core 2 has been increased, fine assurance the brazing flux keep its composition and the unchangeable ability of effect in the heating process, thereby the contaminated air of brazing filler metal in the use has been solved, thereby the problem of the water resource is led to with the incomplete solder flux of postweld clearance, manufacturing cost has also been reduced, fine play the purpose of environmental protection.

When using, make brazing filler metal inner core 2 through twining the back with the brazing filler metal, make 2 adhesions of brazing filler metal inner core inside coating 1, after the drying, can make the coating brazing filler metal, the moisture resistance of brazing filler metal inner core 2 has been increased through setting up dampproof course 3, antirust property through setting up antirust coat 4 and having increased brazing filler metal inner core 2, toughness and intensity through setting up active layer 5 and increasing brazing filler metal inner core 2, through setting up the oxidability that removes oxide layer 6 and has increased brazing filler metal inner core 2, through setting up thermal stabilization layer 7, the thermal stability of brazing filler metal inner core 2 has been increased.

In conclusion, the solder inner core 2 and the coating 1 are firmly combined, the moisture resistance of the solder inner core 2 is increased by the moisture-proof layer 3, the solder is prevented from absorbing moisture and condensing into blocks to fall off to corrode the solder inner core 2, the rust resistance of the solder inner core 2 is increased by the rust-proof layer 4, the good performance of the solder inner core 2 is ensured, the activity of the solder inner core 2 is increased by the active layer 5, the solder inner core 2 has good toughness and strength, the deoxidation property of the solder inner core 2 is increased by the oxidation removal layer 6, the coating can uniformly cover the solder and the base metal to effectively isolate air and play a role in protection, the thermal stability of the solder inner core 2 is increased by the thermal stabilizing layer 7, the capacity of keeping the components and the functions of the soldering flux stable and unchanged in the heating process is well ensured, and the problem that the solder pollutes air in the use process is solved, and the problem of water resource pollution caused by cleaning residual flux after welding is solved, the manufacturing cost is reduced, and the purpose of environmental protection is well achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The coating brazing filler metal comprises a coating (1) and is characterized in that: the brazing filler metal is characterized in that a brazing filler metal inner core (2) is arranged inside the coating (1), the brazing filler metal inner core (2) comprises a moisture-proof layer (3), an anti-rust layer (4), an active layer (5), a deoxidation layer (6) and a heat-stable layer (7), the moisture-proof layer (3) is the outermost layer of the coating (1), one side, close to the anti-rust layer (4), of the moisture-proof layer (3) is connected with one side, close to the moisture-proof layer (3), of the anti-rust layer (4), one side, close to the active layer (5), of the anti-rust layer (4) is connected with one side, close to the anti-rust layer (4), of the active layer (5) is connected with one side, close to the active layer (5), of the deoxidation layer (6) is connected with one side, close to the heat-stable layer (7), of the deoxidation layer (6) is connected with one side.

2. The flux-cored solder as claimed in claim 1, wherein: the coating (1) is uniformly covered on the surface of the brazing filler metal inner core (2), and the outer diameter ratio of the coating (1) to the brazing filler metal inner core (2) is 1: 3.

3. the flux-cored solder as claimed in claim 1, wherein: the coating (1) is arranged in a circular ring shape, and the brazing filler metal inner core (2) is arranged in a cylindrical shape.

4. The flux-cored solder as claimed in claim 1, wherein: the moisture-proof layer (3) is made of an inorganic binder, and the inorganic binder is composed of one or more than two of borate, phosphate, aluminate, boric anhydride, fluoborate and inorganic fluoride.

5. The flux-cored solder as claimed in claim 1, wherein: the anti-rust layer (4) is made of copper chromium plating powder.

6. The flux-cored solder as claimed in claim 1, wherein: the active layer (5) is made of zinc alloy powder.

7. The flux-cored solder as claimed in claim 1, wherein: the oxide removing layer (6) is made of copper-based welding powder.

8. The flux-cored solder as claimed in claim 1, wherein: the heat stable layer (7) is prepared by mixing heat polyvinyl chloride and brazing filler metal powder.