CN103014406B - 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 sealing-in microwave magnetron and preparation method thereof.

Background technology

At microwave, 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 more than 70% seal, sealing materials of conventional argentiferous, and its sealing temperature is generally between 830 ~ 900 DEG C.Because silver is precious metal element, conventional seal, sealing materials silver content is high and welding temperature is also higher, high energy consumption when high material cost and the sealing-in market requirement being growing more intense that is difficult to meet competition, 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 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, is not generally used to the sealing-in of magnetron.

Summary of the invention

The problems referred to above that exist for prior art, the applicant provides a kind of multicomponent alloy material of sealing-in microwave oven magnetic.The present invention had both reduced material cost, and 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 also make moderate progress the cold-forming property of alloy material adding of Ni, Co element.

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 stove, reheat 1200 ~ 1350 DEG C, then cool to room temperature, makes copper cobalt nickel master alloy;

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

(3) until Ag, Cu, In, Ge, Co, Ni after melting in vacuum melting furnace, be cooled to 850 ~ 950 DEG C, by 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 obtaining through rolling calendering, thermal treatment, thickness reaches 0.04 ~ 0.2 mm, through finishing punching press to desired shape.

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

The technique effect that the present invention is useful is:

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

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

(3) the adding of Ni element in 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%, compared with more than 70% Ag content in conventional seal, sealing materials, 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 stove, reheat 1350 DEG C, then cool to room temperature, makes copper cobalt nickel master alloy;

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

(3) until Ag, Cu, In, Ge, Co, Ni after melting in vacuum melting furnace, be cooled to 950 DEG C, 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) ingot casting obtaining is repeatedly cold rolling, thermal treatment, cold worked pass reduction should be controlled at 10% left and right, and the general working rate between twice annealing can reach 50% left and right, makes its thickness reach 0.04 ~ 0.2 mm, through repairing punching press to desired shape.

Embodiment 2

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

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

(3) until Ag, Cu, In, Ge, Co, Ni after melting in vacuum melting furnace, be cooled to 900 DEG C, 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) ingot casting obtaining is repeatedly cold rolling, thermal treatment, cold worked pass reduction should be controlled at 10% left and right, and the general working rate between twice annealing can reach 50% left and right, makes its thickness reach 0.04 ~ 0.2 mm, through repairing punching press to desired shape.

Embodiment 3

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

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

(3) until Ag, Cu, In, Ge, Co, Ni after melting in vacuum melting furnace, be cooled to 850 DEG C, 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) ingot casting obtaining is repeatedly cold rolling, thermal treatment, cold worked pass reduction should be controlled at 10% left and right, and the general working rate between twice annealing can reach 50% left and right, makes its thickness reach 0.04 ~ 0.2 mm, through repairing punching press to desired shape.

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

Table 1

Seal, sealing materials prepared by embodiment 2, through after being welded on microwave oven magnetic, is tested its welding property, and its test result is as shown in table 2.

Table 2

Industry standard in 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 prepared seal, sealing materials of the present invention is better than conventional seal, sealing materials, can meet the service requirements of microwave magnetron high-air-tightness.

Claims (1)

1. a multicomponent alloy material for 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%;

Concrete preparation method is as follows:

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

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

(3) until Ag, Cu, In, Ge, Co, Ni after melting in vacuum melting furnace, be cooled to 850 ~ 950 DEG C, by 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 obtaining through rolling calendering, thermal treatment, thickness reaches 0.04 ~ 0.2 mm, through finishing punching press to desired shape.