CN202193831U

CN202193831U - Smelting device for high phosphor copper alloy

Info

Publication number: CN202193831U
Application number: CN201120315951XU
Authority: CN
Inventors: 丁天然; 龙伟民; 张雷; 于新泉; 潘世师; 黄俊兰; 张冠星; 程亚芳; 赵建昌; 张强; 张翼
Original assignee: Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Current assignee: Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Priority date: 2011-08-27
Filing date: 2011-08-27
Publication date: 2012-04-18
Anticipated expiration: 2021-08-27

Abstract

The utility model discloses a smelting device for high phosphor copper alloy, which compromises a closed device; a crucible is arranged in the closed device, a sensing heating device is arranged outside the crucible, a Venturi tube communicated with a nitrogen output pipeline enters the closed device through a phosphorus leading pipeline and extends to the bottom of the crucible, a phosphorus outlet pipeline communicated with a yellow phosphorus tank is communicated with another inlet of the Venturi tube, a valve F1 and a valve F2 are respectively arranged on the nitrogen output pipeline and the phosphorus outlet pipeline, an exhaust pipe led from the lower part of the closed device goes deep into an external water tank, and a heating water jacket is coated on the outside of the phosphorus leading pipeline. The smelting device has the advantages of being simple in structure, safe in operation, free from pollution, and low in production cost and can obviously improve the production efficiency.

Description

A kind of smelting device of high phosphorus copper alloy

Technical field

The utility model belongs to technical field of soldering materials, especially relates to a kind of smelting device of high phosphorus copper alloy.

Background technology

Over nearly 30 years, flourish along with industries such as electronics and information industry, household electrical appliances, automobile, military project and material of construction, increasing to the demand of solder, and soldering tech has been played the part of important role in these emerging industries.For manufacturability and the Technological Economy property of pursuing soldering, usually preferentially select for use money base to contain the cadmium solder, the production of the accessory that especially freezes is almost all used to contain the cadmium solder.Because the promulgation of European Union " WEEE " and " RoSH " two instructions; And in enforcement on July 1 in 2006; The material that contains cadmium will not allow in household electrical appliances are produced, to use, and contain the developing direction that the cadmium solder is following no cadmium manufacturing so adopt low-cost copper base solder to substitute some practicality.The high phosphorus copper alloy is the important alloy that is used to make Cu-P series braze material and non-ferrous metal metallurgy and all size copper coin band, the good and bad performance of braze material and the quality of non-ferrous metal metallurgy of directly influencing of its quality.

The smelting process of at present the most general high phosphorus copper alloy is to prepare two plumbago crucibles earlier, and a crucible baking is passed through and cooling, and phosphorus is put into wherein; The another crucible is put electrolytic copper, is heated to 1200～1250 ℃ and forms copper solutions, and copper liquid is poured in last the crucible, and jog crucible 5～10min promotes reaction, and uncap stirs alloy solution, the cast of skimming.This method is when melting high phosphorus copper alloy, because phosphorus content is higher, phosphorus floats to the surface rapidly and contacts with air in copper solutions, cause a large amount of phosphorus in reaction, to become P ₂O ₅Gaseous volatilization, contaminate environment not only, and cause a large amount of losses of phosphorus raw material.In addition, if directly in the crucible of the phosphorus of packing into, add copper solutions must cause copper solutions violent boiling, splash, jeopardize operator's personnel safety.

Summary of the invention

It is a kind of pollution-free that the utility model purpose is to provide, and cost is low, the smelting device of the high phosphorus copper alloy that operational safety and efficient are high.

For realizing above-mentioned purpose, the utility model can be taked following technical proposals:

The smelting device of the described high phosphorus copper alloy of the utility model; It comprises closed unit; In said closed unit, be provided with crucible, be outside equipped with induction heating device at said crucible, the outlet of the venturi tube that is connected with the nitrogen delivery conduit gets into closed unit and extends into crucible bottom through drawing the phosphorus seal for pipe joints; The phosphorus outlet tube road that is connected with the yellow phosphorus jar is connected with another import of venturi tube, on said nitrogen delivery conduit and phosphorus outlet tube road, is respectively arranged with valve F1, F2; The vapor pipe of drawing from said closed unit bottom deeply advances in the outside tank.

Freeze when drawing the phosphorus pipeline for preventing that phosphorus solution from being sucked by nitrogen, said external packets of drawing the phosphorus pipeline is covered with the heating water jacket.

The advantage of the utility model is mainly reflected in:

1, crucible is put into closed unit, can prevent the copper solutions oxidation during electrolytic copper heating and melting of inner splendid attire.

2, nitrogen attracts phosphorus to get into the copper solutions bottom, has reduced phosphorus and has contacted the deleterious P of generation with airborne oxygen ₂O ₅Gas reduces environmental pollution.

3, a small amount of P that residual oxygen generates in phosphorus and the closed unit ₂O ₅, entering in the outside tank through vapor pipe, the phosphoric acid of generation can also be recycled, and both save energy was avoided contaminate environment again.

4, the technology that adopts this device to smelt is compared with copper phosphorus smelting method commonly used at present, and the utilization ratio of phosphorus improves greatly, can practice thrift the mass production cost.

5, in smelting process, can not produce the splash of phosphorus, more not have explosion phenomenon and take place, not have big smog yet and emerge, safety and environmental protection.

6, the utility model is simple in structure, simple to operate, can enhance productivity greatly.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

As shown in Figure 1; The smelting device of the described high phosphorus copper alloy of the utility model; It comprises closed unit 1; In closed unit 1, be provided with crucible 2, outside crucible 2, be set with induction heating device 3, the outlet of the venturi tube 4 that is connected with the nitrogen delivery conduit gets into closed unit 1 and extends into crucible 2 bottoms through drawing 5 sealings of phosphorus pipeline; The phosphorus outlet tube road that is connected with yellow phosphorus jar 6 is connected with another import of venturi tube 4, on nitrogen delivery conduit and phosphorus outlet tube road, is respectively arranged with valve F1, F2; The vapor pipe 7 of drawing from closed unit 1 bottom deeply advances in the outside tank 8, and the external packets of drawing phosphorus pipeline 5 is covered with heating water jacket 9, and the inner hot water that feeds 80-90 ℃ can prevent to freeze when phosphorus solution from being drawn phosphorus pipeline 5 by the nitrogen suction.

When the smelting device of the utility model uses; At first take by weighing an amount of electrolytic copper and put into crucible 2; With crucible 2 place use then in the closed unit 1 induction heating device 3 to its induction heating to 1200-1250 ℃, electrolytic copper is molten into copper solutions fully under this temperature; Take by weighing yellow phosphorus and put into yellow phosphorus jar 6, be heated to 80 ℃, yellow phosphorus becomes phosphorus solution fully; Open the valve F1 on the nitrogen delivery conduit, nitrogen rapidly along venturi tube with draw phosphorus pipeline 5 flow at high speed, the copper solutions that will draw in the phosphorus pipeline 5 is discharged; And then open the valve F2 on the phosphorus outlet tube road, and along with the high speed circulation of nitrogen, producing negative pressure in the pipeline, phosphorus solution is slowly sucked crucible 2 bottoms of splendid attire copper solutions by nitrogen, fully reacts with copper solutions to obtain the high phosphorus copper alloy solution, a small amount of P of generation ₂O ₅Gas enters through vapor pipe 7 and generates phosphoric acid in the tank 8, is recovered the back recycling, and the high phosphorus copper alloy solution in the crucible 2 is poured into a mould, and can obtain required high phosphorus copper alloy.In the whole smelting process, the scaling loss of element is at 0.05-0.1%.

Claims

1. the smelting device of a high phosphorus copper alloy; It is characterized in that: it comprises closed unit (1); In said closed unit (1), be provided with crucible (2); Be outside equipped with induction heating device (3) at said crucible (2); The outlet of the venturi tube (4) that is connected with the nitrogen delivery conduit gets into closed unit (1) and extends into crucible (2) bottom through drawing phosphorus pipeline (5) sealing, and the phosphorus outlet tube road that is connected with yellow phosphorus jar (6) is connected with another import of venturi tube (4), on said nitrogen delivery conduit and phosphorus outlet tube road, is respectively arranged with valve F1, F2; The vapor pipe (7) of drawing from said closed unit (1) bottom deeply advances in the outside tank (8).

2. the smelting device of high phosphorus copper alloy according to claim 1 is characterized in that: said external packets of drawing phosphorus pipeline (5) is covered with heating water jacket (9).