CN103014406A - Multicomponent alloy material for sealing microwave oven magnetron - Google Patents

Abstract

The invention discloses a multicomponent alloy material for sealing a microwave oven magnetron. The multicomponent alloy material comprises the following components by mass percentage: 58-65.6% of Ag, 11-13% of In, 22-24% of Cu, 1-2% of Ge, 0.2-1% of Co, and 0.2-2% of Ni. A preparation method comprises the following steps of (1) placing Cu, Co and Ni into a vacuum melting furnace, and preparing a copper-cobalt-nickel intermediate alloy, (2) calendering the copper-cobalt-nickel intermediate alloy into a plate strip, wrapping In, and placing In, Ag and Ge into the vacuum melting furnace, (3) cooling after fusion, and obtaining a cast ingot, and (4) conducting rolling, calendering and heat treatment on the cast ingot, and finishing and stamping the cast ingot to a required shape. According to the multicomponent alloy material, the material cost is lowered, the energy loss during sealing is reduced, the cleanliness and airtightness of the sealing material are improved greatly, and the cold processing performance of the alloy material is also improved as Ni and Co are added.

Description

A kind of multicomponent alloy material of sealing-in microwave oven magnetic

Technical field

The present invention relates to electronic sealing material technology field, especially relate to a kind of multicomponent alloy seal, sealing materials for the sealing-in microwave magnetron and preparation method thereof.

Background technology

With in the sealing-in of magnetron, particularly in the sealing-in of pottery and metal, metal and metal, in order to reach its sealing property, people mostly adopt the conventional seal, sealing materials of argentiferous more than 70% at microwave, and its sealing temperature is generally between 830 ~ 900 ℃.Because silver is precious metal element, conventional seal, sealing materials silver content height and welding temperature are also higher, the market requirement that high energy consumption when high material cost and sealing-in is difficult to meet competition and is growing more intense, the novel sealing material that a kind of sealing property of people's active demand is good and cheap, welding temperature is lower.Although content and the temperature of fusion of noble silver have reduced in the conventional silver-bearing copper indium seal, sealing materials, because its sealing property is not good enough, cold deformation is little and color and luster is gloomy, generally is not used to the sealing-in of magnetron.

Summary of the invention

For the problems referred to above that prior art exists, the applicant provides a kind of multicomponent alloy material of sealing-in microwave oven magnetic.The present invention had both reduced material cost, and the energy waste when having reduced again sealing-in makes the degree of cleaning of seal, sealing materials and resistance to air loss be greatly improved simultaneously, because the adding of Ni, Co element also makes moderate progress the cold-forming property of alloy material.

Technical scheme of the present invention is as follows:

A kind of microwave magnetron sealing alloy material, the mass percent of its component and each component is: Ag:58 ~ 65.6%, In:11 ~ 13%, Cu:22 ~ 24%, Ge:1 ~ 2%, Co:0.2 ~ 1%, Ni:0.2 ~ 2%

Concrete preparation method is as follows:

(1) Cu, Co, Ni are put into vacuum melting furnace, be evacuated to 1 ~ 0.1Pa in the stove, reheat 1200 ~ 1350 ℃, then cool to room temperature is made copper cobalt nickel master alloy;

(2) copper cobalt nickel master alloy is rolled into the strip that thickness is 0.1 ~ 0.5mm, by the folding bending of strip the In component is wrapped, insert in the vacuum melting furnace with Ag, Ge component again, be evacuated to 0.4 ~ 0.04Pa in the stove, reheat 1000 ~ 1200 ℃;

(3) until Ag, Cu, In, Ge, Co, Ni in vacuum melting furnace after the melting, be cooled to 850 ~ 950 ℃, with fused solution to shaper, after temperature drops to room temperature, shaper is taken out in vacuum oven, obtained making the required ingot casting of this seal, sealing materials;

(4) the ingot casting that obtains through rolling calendering, thermal treatment, thickness reaches 0.04 ~ 0.2 mm, through the finishing punching press to desired shape get final product.

The treatment process that step (4) is optimized is: repeatedly cold rolling the ingot casting that obtains, thermal treatment, cold worked pass reduction should be controlled at about 10%, and the general working rate between the twice annealing can reach about 50%, make its thickness reach 0.04 ~ 0.2 mm, get final product through finishing punching press to desired shape.

The technique effect that the present invention is useful is:

(1) because Co, Ni high-melting-point element in the alloy compositions are made master alloy with the Cu element, multicomponent alloy fusing point when melting is reduced greatly, raw-material volatilization when having reduced high melt makes the formulated component of multicomponent alloy more accurate.

(2) Energy Intensity Reduction during sealing-in: the temperature of fusion of this multicomponent alloy is at 620 ~ 670 ℃, and needed sealing temperature is between 730 ~ 780 ℃; And the temperature of fusion of conventional AgCu scolder is at 780 ~ 800 ℃, and required sealing temperature is at 830 ~ 880 ℃.Both compare, and use the required energy consumption of this seal, sealing materials obviously to reduce.

(3) adding of Ni element in the multicomponent alloy can improve the wettability of scolder on Wimet, can also improve by the bonding strength of closure simultaneously.

(4) raw-material cost: this multicomponent alloy seal, sealing materials Ag content 65.6 ~ 58%, compare with the Ag content more than 70% in the seal, sealing materials of routine, greatly reduce the usage quantity of precious metals ag, cost is declined to a great extent.

Embodiment

Embodiment 1

(1) Cu, Co, Ni are put into vacuum melting furnace, be evacuated to 1Pa in the stove, reheat 1350 ℃, then cool to room temperature is made copper cobalt nickel master alloy;

(2) copper cobalt nickel master alloy is rolled into the strip that thickness is 0.1 ~ 0.5mm, by the folding bending of strip the In component is wrapped, insert in the vacuum melting furnace with Ag, Ge component again, be evacuated to 0.4Pa in the stove, reheat 1200 ℃;

(3) in vacuum melting furnace, after the melting, be cooled to 950 ℃ until Ag, Cu, In, Ge, Co, Ni, fused solution to shaper, after temperature drops to room temperature, is taken out shaper in vacuum oven, obtain making the required ingot casting of this seal, sealing materials;

(4) repeatedly cold rolling the ingot casting that obtains, thermal treatment, cold worked pass reduction should be controlled at about 10%, and the general working rate between the twice annealing can reach about 50%, makes its thickness reach 0.04 ~ 0.2 mm, gets final product through finishing punching press to desired shape.

Embodiment 2

(1) Cu, Co, Ni are put into vacuum melting furnace, be evacuated to 0.1Pa in the stove, reheat 1200 ℃, then cool to room temperature is made copper cobalt nickel master alloy;

(2) copper cobalt nickel master alloy is rolled into the strip that thickness is 0.1 ~ 0.5mm, by the folding bending of strip the In component is wrapped, insert in the vacuum melting furnace with Ag, Ge component again, be evacuated to 0.04Pa in the stove, reheat 1000 ℃;

(3) in vacuum melting furnace, after the melting, be cooled to 900 ℃ until Ag, Cu, In, Ge, Co, Ni, fused solution to shaper, after temperature drops to room temperature, is taken out shaper in vacuum oven, obtain making the required ingot casting of this seal, sealing materials;

(4) repeatedly cold rolling the ingot casting that obtains, thermal treatment, cold worked pass reduction should be controlled at about 10%, and the general working rate between the twice annealing can reach about 50%, makes its thickness reach 0.04 ~ 0.2 mm, gets final product through finishing punching press to desired shape.

Embodiment 3

(1) Cu, Co, Ni are put into vacuum melting furnace, be evacuated to 0.5Pa in the stove, reheat 1270 ℃, then cool to room temperature is made copper cobalt nickel master alloy;

(2) copper cobalt nickel master alloy is rolled into the strip that thickness is 0.1 ~ 0.5mm, by the folding bending of strip the In component is wrapped, insert in the vacuum melting furnace with Ag, Ge component again, be evacuated to 0.2Pa in the stove, reheat 1100 ℃;

(3) in vacuum melting furnace, after the melting, be cooled to 850 ℃ until Ag, Cu, In, Ge, Co, Ni, fused solution to shaper, after temperature drops to room temperature, is taken out shaper in vacuum oven, obtain making the required ingot casting of this seal, sealing materials;

(4) repeatedly cold rolling the ingot casting that obtains, thermal treatment, cold worked pass reduction should be controlled at about 10%, and the general working rate between the twice annealing can reach about 50%, makes its thickness reach 0.04 ~ 0.2 mm, gets final product through finishing punching press to desired shape.

The quality of each feed composition that embodiment 1 ~ 3 is used is as shown in table 1, and unit is kg.

Table 1

The seal, sealing materials of embodiment 2 preparation through after being welded on the microwave oven magnetic, is tested its welding property, and its test result is as shown in table 2.

Table 2

Industry standard in the table 2 comes from " soldering handbook second edition, China Machine Press, Zhang Qiyun, Zhuan Hongshou chief editor.As can be seen from Table 2, the welding property of the seal, sealing materials that the present invention is prepared is better than conventional seal, sealing materials, can satisfy microwave magnetron high-air-tightness service requirements.

Claims (2)

1. the multicomponent alloy material of a sealing-in microwave oven magnetic is characterized in that the mass percent of its component and each component is: Ag:58 ~ 65.6%, In:11 ~ 13%, Cu:22 ~ 24%, Ge:1 ~ 2%, Co:0.2 ~ 1%, Ni:0.2 ~ 2%.

2. the multicomponent alloy material of sealing-in microwave oven magnetic according to claim 1 is characterized in that concrete preparation method is as follows:

(1) Cu, Co, Ni are put into vacuum melting furnace, be evacuated to 1 ~ 0.1Pa in the stove, reheat 1200 ~ 1350 ℃, then cool to room temperature is made copper cobalt nickel master alloy;

(2) copper cobalt nickel master alloy is rolled into the strip that thickness is 0.1 ~ 0.5mm, by the folding bending of strip the In component is wrapped, insert in the vacuum melting furnace with Ag, Ge component again, be evacuated to 0.4 ~ 0.04Pa in the stove, reheat 1000 ~ 1200 ℃;

(3) until Ag, Cu, In, Ge, Co, Ni in vacuum melting furnace after the melting, be cooled to 850 ~ 950 ℃, with fused solution to shaper, after temperature drops to room temperature, shaper is taken out in vacuum oven, obtained making the required ingot casting of this seal, sealing materials;

(4) the ingot casting that obtains through rolling calendering, thermal treatment, thickness reaches 0.04 ~ 0.2 mm, through the finishing punching press to desired shape get final product.