CN101618433A

CN101618433A - Bronze drum casting method

Info

Publication number: CN101618433A
Application number: CN200910114265A
Authority: CN
Inventors: 韦启初; 韦启参
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-29
Filing date: 2009-07-29
Publication date: 2010-01-06

Abstract

The invention relates to a bronze drum casting method. The method comprises the following working procedures: 1. preparing molding sand; 2. filling a die, tamping sand and exhausting; 3. opening the die; 4. preparing model powders, processing decorative patterns on the appearance of a bronze drum model and closing the die; and 5. casting. The molding sand comprises the following prescriptions (in percentage by mass): 60-80 of river sand, 10-30 of refractory mortar and 3-10 of water, preferably 75 percent of river sand, 20 percent of refractory mortar and 5 percent of water; and the model powders comprise the following prescriptions (in percentage by mass): 50-80 of quartz powders, 5-30 of gypsum powders, 5-20 of lime powders and 3-10 of wood ash powders, preferably 60 of quartz powders, 20 of gypsum powders, 15 of lime powders and 5 of wood ash powders. All the working procedures have convenient and rapid operation, and a bronze drum product can be cast in short time. The bronze drum is a heavy musical instrument used by some minorities in south of China, and the production method has convenient and rapid operation and can cast the bronze drum product in short time so that the precious cultural heritage of Chinese nation is inherited.

Description

Bronze drum casting method

Technical field

The present invention relates to a kind of bronze drum casting method, specifically is the casting method of the musical instrument of a kind of ethnic group use.

Background technology

Bronze drum is the heavy musical instrument that some ethnic groups of China south use, with the bronze is mainly to join other metal casting and form, and be one of Chinese nation's preciousness cultural heritage.(Wei Qichu Wei Qican) has applied for and has been awarded the utility model patent of " bronze drum mould ", patent No. ZL200720153464.1 to Guangxi Huan Jiangxian Webster brother in 2007.This utility model patent is hereby incorporated by reference.Lost bronze drum casting technique has for many years obtained continuity and development thus.The Webster brother through constantly exploring improvement, has summed up complete, the practical bronze drum casting technique of a cover on the basis that utilizes this bronze drum die casting bronze drum.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of bronze drum casting method.Traditional bronze drum casting technique is used wax-pattern method and special-purpose fire-resistant sand, and the drying time of mould is long, operation is numerous and diverse, and the patterned surfaces fineness of products obtained therefrom is not high.The present invention improves traditional handicraft, and each production process is easy to operate, quick, can cast out the bronze drum product at short notice, makes the valuable cultural heritage of the Chinese nation obtain succession.Bronze drum casting method of the present invention specifically comprises following operation:

One. blending type sand

Two. dress mould, husky, the exhaust of rammer

Three. die sinking

Four. preparation model powder, bronze drum model appearance decorative pattern are handled, matched moulds

Five, casting

Concrete operations are as follows:

One. blending type sand

Use river sand, fire clay and water are prepared, and its prescription is (quality %): river sand 60-80, and fire clay 10-30, water 3-10, preferably river sand 75%, fire clay 20%, water 5%.After above-mentioned raw materials mixed, pulverize with making husky machine.

Two. dress mould, husky, the exhaust of rammer

1. the bronze drum mould is placed on the base, jacket casing in two bronze drums is installed on the base, refill bronze drum drum body mould and tighten, between interior jacket casing and drum body mould, fill the type sand for preparing, compacting layer by layer, the type sand that jacket casing top in the bronze drum is unnecessary pats, and covers bulging face mould.

2. the outer jacket casing of dress is docked at bronze drum die frame outer edge to jacket casing outside 2 to 4 and fixes, and the type sand for preparing is filled in the space between outer jacket casing and the bulging body mould, tamps.Because outer jacket casing than bulging body mould height, is thrown into 2-4 timber wedge in the type sand of compacting, stays and does tapping hole.Cover the mould loam cake, the timber wedge (tapping hole) below aiming at 2 to 4 big slightly timber wedges fills up with type sand and tamps uniform then 8 to 12 steam vents.

Dress mould, rammer beneficial effect husky, exhaust are:

The dress mould is fixing good more, and bronze drum thickness is even more; Ram the evenly moderate good exhaust effect to the drum body of husky dynamics, the bronze drum tonequality that casts out is good, and the decorative pattern pattern of drum face is more clear, and the probability that bubble occurs is few.

Three, die sinking

Open the die cap of mould, deployed model powder evenly is sprinkling upon on the bronze drum drum face mould, puts down die cap again, open die cap after the compacting, take outer jacket casing apart, unload bulging face mould and drum body mould, expose the husky mould of bronze drum, repair the type sand that husky mould and urceolus put, take the tapping hole timber wedge away, and dig in drum body corresponding position and to rouse ear, enlarge tapping hole, with convenient casting.

The beneficial effect of die sinking is:

It is careful that die sinking is wanted, and it is smooth to repair the type sand that husky mould and urceolus put, and the bronze drum rat tail that casts out is just little, and the drum body is attractive in appearance; The husky mould of drum body leaves down tapping hole, and copper water can flow from the bottom up, can better solve the trachoma phenomenon that occurs on the bronze drum drum face; The top-pour blowhole is corresponding with following tapping hole, so as when casting copper water Channel Group without hindrance, bronze drum can one-shot forming, N/D.

Four, preparation model powder, the processing of bronze drum model appearance decorative pattern, matched moulds

1. the prescription of preparation model powder is (quality %): silica flour 50-80, land plaster 5-30, pulverized limestone 5-20, wood ash powder 3-10, preferred silica flour 60, land plaster 20, pulverized limestone 15, wood ash powder 5.

2. will prepare uniform model powder and be sprinkling upon on the bronze drum sand mould surface of repairing well, push the model powder of dispenser again with bronze drum drum body mould.The bronze drum decorative pattern seal of having made is imprinted on the bulging face and the drum body surface of the husky mould of bronze drum.

With deployed model powder again dispenser one deck at Sha Moshang outer jacket casing is installed, cover die cap, fix up and down bolt junction button.

The characteristics of model powder are can be high temperature resistant, and antiscour can make the bronze drum clear patterns, the smooth surface that cast out; The decorative pattern seal by the seal convenient, fast, can in half an hour, press printed whole bronze drum, broken traditional characteristics that cured modeling method is of long duration, operation is numerous.

Five, casting

To dissolve good copper moisture and become 2 to 4 strockles, and aim at casting gate and cast simultaneously, cooling forming in the gap that copper water forms after taking out drum face mould and drum body mould.

The beneficial effect of casting is:

Casting is particular about and is carried out simultaneously, injects copper water when 2 to 4 tapping holes advance, and it is fast that speed is wanted.It is few to reach bronze drum trachoma, the effect that tonequality is good.

Description of drawings

Fig. 1 is the die cut view that bronze drum casting technique of the present invention is used.

The definition of Reference numeral is handle 3, bolt junction button 4, drum body mould 5, fan-shaped bulging body module 6, fan-shaped outer module 7, interior jacket casing 8, drum face mould 9, louvre 10, dividing plate 11, die cap 12, the handle 13 of die cap, the support 14 of metab 1, outer jacket casing 2, outer module among the figure.

The specific embodiment

The present invention is further described below in conjunction with the drawings and specific embodiments.

Embodiment 1

With river sand 75 quality %, fire clay 20 quality %, water 5 quality %.After mixing, pulverize, make type sand with making husky machine.

Filled-type sand in the space in Fig. 1 between jacket casing 8 and the drum body mould 5, compacting is wipeed the back off and is placed drum face mould 9.

Outer jacket casing 2 is installed on metab 1, between jacket casing 2 and the drum body mould 5 and the husky and compacting of filled-type in the space between outer jacket casing 2 and the drum face mould 9, is covered die cap 12 outside, toward die cap 12 interior filled-type sand, when filled-type sand, the reservation tapping hole.

After type sand is all populated, dig die cap 12, take outer jacket casing 2 apart, take out drum face mould 9 and rouse body mould 5, expose the husky mould of bronze drum, repair the type sand on husky mould and the outer jacket casing 2.

Preparation model powder, the prescription of model powder is silica flour 60 quality %, land plaster 20 quality %, pulverized limestone 15 quality %, wood ash powder 5 quality %.At the even dispenser model powder in the husky mould of bronze drum surface, bronze drum decorative pattern seal is printed bulging face and the drum body surface that is placed on the husky mould of bronze drum, dispenser one layer model powder is installed outer jacket casing 2 and die cap 12 again.

To dissolve good copper water and pour tapping hole fast into, copper water is cooling forming in the gap of taking-up drum face mould 9 and the 5 back formation of drum body mould, die sinking.

Embodiment 2

Repeat embodiment 1, just the prescription with type sand is revised as river sand 60 quality %, fire clay 30 quality %, water 10 quality %; The prescription of model powder is revised as silica flour 50 quality %, land plaster 30 quality %, pulverized limestone 10 quality %, wood ash powder 10 quality %.

Embodiment 3

Repeat embodiment 1, just the prescription with type sand is revised as river sand 80 quality %, fire clay 10 quality %, water 10 quality %; The prescription of model powder is revised as silica flour 80 quality %, land plaster 5 quality %, pulverized limestone 5 quality %, wood ash powder 10 quality %.

Claims

1. bronze drum casting method comprises following operation:

One. blending type sand

Two. dress mould, husky, the exhaust of rammer

Three. die sinking

Five, casting

The prescription that it is characterized in that type sand is (quality %): river sand 60-80, fire clay 10-30, water 3-10;

The prescription of model powder is (quality %): silica flour 50-80, land plaster 5-30, pulverized limestone 5-20, wood ash powder 3-10.

2. bronze drum casting method according to claim 1 is characterized in that the prescription of said type sand is (quality %): river sand 75, fire clay 20, water 5.

3. bronze drum casting method according to claim 1 and 2 is characterized in that the prescription of said model powder is (quality %): silica flour 60, land plaster 20, pulverized limestone 15, wood ash powder 5.

4. bronze drum casting method according to claim 1 is characterized in that in the husky operation of blending type, after raw material is mixed, pulverizes with making husky machine; In the press setter preface, filled-type sand in the space between interior jacket casing (8) and drum body mould (5), compacting is wipeed the back off and is placed drum face mould (9), jacket casing (2) outside metab (1) is gone up installation, filled-type is husky between jacket casing (2) and the drum body mould (5) and in the space between outer jacket casing (2) and the drum face mould (9) outside also tamps, and covers die cap (12), toward the interior filled-type sand of die cap (12), when filled-type is husky, reserve tapping hole and steam vent; In the die sinking operation, dig die cap (12), take outer jacket casing (2) apart, take out drum face mould (9) and drum body mould (5), expose the husky mould of bronze drum, repair the type sand on husky mould and the outer jacket casing (2); In the preparation model powder operation, at the model powder of the even dispenser preparation in the husky mould of bronze drum surface, bronze drum decorative pattern seal seal is placed on the bulging face of the husky mould of bronze drum and rouses the body surface, dispenser one layer model powder is installed outer jacket casing (2) and die cap (12) again; In the casting operation, will dissolve copper water well and pour tapping hole fast into, copper water is cooling forming in the gap of taking out drum face mould (9) and the formation of drum body mould (5) back, die sinking.