CN1089904A

CN1089904A - Production technology for zinc alloy ancient copper imitation handicraft article

Info

Publication number: CN1089904A
Application number: CN 93106522
Authority: CN
Inventors: 朱元风; 赵熙黔; 陈江
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-28
Filing date: 1993-05-28
Publication date: 1994-07-27

Abstract

Production technology for zinc alloy ancient copper imitation handicraft article.Adopt zinc-copper-rare earth alloy or zinc-aluminium-rare-earth alloy, through the dewax precision casting process, make kirsite handicraft foundry goods, foundry goods preplating neutral nickel after polishing, at the bottom of the pyrophosphate copper plating, plate acid bright copper, carry out bronze-colored processing with the sodium hydroxide lye that contains potassium peroxydisulfate, method with rubbing down, clash wire and strip and block decorative pattern, adopt the agent of organic chemistry ester to carry out the passivation variable color at last and handle, make the coppery that clashes part become brass, promptly obtain the imitative copper artware of antique kirsite, product has good market prospects and considerable economic.

Description

Production technology for zinc alloy ancient copper imitation handicraft article

The invention belongs to a kind of production technology of making ancient copper imitation handicraft article with kirsite.

In ancient Chinese culture, the bronze utensil of merchant Zhou Shidai has been showed brilliant Chinese art.Keep plaque copper skill artistic products so far to make, simple and unsophisticated with its moulding, vivid lively, image is unique and enjoy great prestige China and foreign countries, has the ornamental value and the reserve value of height.Lost wax process is adopted in the making of copper artware usually, because the fusing point of copper is high and the influence of casting character, be difficult to the casting accuracy that reaches higher, must be through artificial chiseling and carving meticulously of later stage, the own price height of copper material in addition, so the copper artware price is expensive and the production cycle is long, can not be accepted by level of mass consumption, thereby also limit the developing in market.

The kirsite workmanship is in the existing production of American-European countries, and color and luster has coppery, silver color and gold, and kind has tourist souvenir, building decoration, and some of household arrangement have concurrently functional and the artistry article, and moderate cost is handsome in appearance, gets consumer reception very much.Yet, be subjected to the high influence of artificial labour cost abroad.The kirsite handicraft only limits to casting die production, thereby is affected on moulding complexity and kind.

It is low to the purpose of this invention is to provide a kind of cost of material, and energy consumption is little, end product quality height, the unrestricted ancient copper imitation handicraft article production technology of moulding.

Technology contents of the present invention is as follows:

The present invention adopts zinc-copper-rare earth alloy or zinc-aluminium-rare-earth alloy, through the dewax precision casting process, make kirsite handicraft foundry goods, foundry goods preplating neutral nickel after polishing, at the bottom of the pyrophosphate copper plating, plate acid bright copper, carry out bronze-colored processing with the sodium hydroxide lye that contains potassium peroxydisulfate, method with rubbing down, clash wire and strip and block decorative pattern, adopt the agent of organic chemistry ester to carry out the passivation variable color at last and handle, make the coppery that clashes part become brass, promptly obtain the imitative copper artware of antique kirsite.The composition of the zinc-copper-rare earth alloy that adopts is Cu:1%-5%, the RE(mishmetal): 0.1%-0.4%, Zn: surplus, the composition of zinc-aluminium-rare-earth alloy is Al:4%-10%, the RE(mishmetal): 0.1-0.4%, Zn: surplus.The organic chemistry fat agent of adopting is to contain the saponified paraffin grease of 0.5%-1%, and the time that the passivation variable color is handled is 10-24 hour.

Below in conjunction with accompanying drawing technology of the present invention is described in further detail.

Fig. 1 is production process route figure of the present invention.

It is raw material that the present invention adopts the Zn-Cu-RE alloy, in zinc, add copper, the intensity of capable of regulating alloy is improved the casting character of alloy, carries heavy alloyed brazing property, in kirsite, add the group of the lanthanides mishmetal, has crystal grain thinning, the effect of purification and impurity removal, the fragility of reduction kirsite, improve the cold and hot working performance, and obviously improve the polishing performance of kirsite. The present invention is take lost-wax casting as main, and compression casting is auxiliary, changes characteristics fast and wide in variety to adapt to workmanship moulding style. Adopt lost-wax process can adapt to the production, the particularly production of complicated shape product of the many kinds of small lot. It is little that lost-wax process has investment, changes fast characteristics, adopts in the situation that compression casting is single in kind and batch is big, has the measured characteristics of high productivity and matter. The electroplating surface finish production of kirsite handicraft foundry goods is adopted and is given plating neutrality, plating Technology Bright Acidic copper, and passivation and chemical treatment coloring process, whole process is not used cyanide, avoids environmental pollution. The coating of plating piece is in conjunction with firmly, and is ornamental and resistance to corrosion is good, the variable color that do not come off of long-term touch mould.

Example 1: for the handicraft of necessary individual cast combination, usually adopt zinc-copper-rare-earth alloy material, rout up wax pattern by plaster mold, make formwork and dewax roast, melted alloy, at 420-430 ℃ alloy liquid is poured in the good formwork of roasting, after treating that alloy solidifies fully, rapidly formwork is dropped into chilling in the water, foundry goods synthesizes complete handicraft foundry goods with 60# scolding tin with its soldering group after cleaning and polishing, after the foundry goods polishing, through deoiling and activation processing, give the plating neutral nickel, plate acid bright copper, be processed into bronze-colored with the alkaline solution that contains 1% potassium peroxydisulfate, adopt polishing machine or artificial method to clash strip and block-type tread, wipe shallow place and show coppery, adopt then to contain the saponified paraffin grease coating processes product surface of 0.5%-1%, after handling in 10-24 hour, make coppery become brass, thereby obtain the kirsite copper artware modelled after an antique of conversion lucuriant in design.

Example 2: for handicraft that can complete casting, adopt zinc-aluminium-rare-earth alloy material, adopt the technology identical thereafter, also can obtain the kirsite copper artware modelled after an antique of effect same with example 1.

Production method provided by the invention, owing to adopt kirsite to make raw material, cost is low, and the low and good casting property of the fusing point of kirsite, so energy consumption is low, the casting accuracy height has reduced processing link and can do thin-wall product, greatly reduces production cost; Can in conjunction with lost-wax process, metal mold method and casting die production, have very big flexibility according to the requirement of production lot, kind and quality; The kirsite handicraft is behind the electroplating surface finish, can reach the quality sense of copper artware fully, so very big appreciation potential is arranged, the value-added content of product height, and because cost is low, product price is easily accepted by level of mass consumption, has the extremely strong market competitiveness, and good market prospects and considerable economic are arranged.

Claims

1, a kind of production technology for zinc alloy ancient copper imitation handicraft article, it is characterized in that adopting zinc-copper-rare earth alloy or zinc-aluminium-rare-earth alloy, through the dewax precision casting process, make kirsite handicraft foundry goods, foundry goods preplating neutral nickel after polishing, at the bottom of the pyrophosphate copper plating, plate acid bright copper, with the sodium hydroxide lye that contains potassium peroxydisulfate, carry out bronze-colored processing, with the method for rubbing down, clash wire and strip and block decorative pattern, adopt the agent of organic chemistry ester to carry out the passivation variable color at last and handle, make the coppery that clashes part become brass, promptly obtain the imitative copper artware of antique kirsite.

2, production technology according to claim 1, the composition that it is characterized in that zinc-copper-rare earth alloy of being adopted is Cu:1%-5%, the RE(mishmetal): 0.1%-0.4%, Zn: surplus, the composition of zinc-aluminium-rare-earth alloy is Al:4%-10%, the RE(mishmetal): 0.1-0.4%, Zn: surplus.

3, it is characterized in that according to claim 1,2 described production technologies the organic chemistry fat agent of being adopted is to contain the saponified paraffin grease of 0.5%-1%, the time that the passivation variable color is handled is 10-24 hour.