SU846070A1 - Flask equipment for producing casting moulds by vacuum moulding - Google Patents
Flask equipment for producing casting moulds by vacuum moulding Download PDFInfo
- Publication number
- SU846070A1 SU846070A1 SU792777785A SU2777785A SU846070A1 SU 846070 A1 SU846070 A1 SU 846070A1 SU 792777785 A SU792777785 A SU 792777785A SU 2777785 A SU2777785 A SU 2777785A SU 846070 A1 SU846070 A1 SU 846070A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- vacuum
- flask
- vacuum moulding
- casting moulds
- producing casting
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/01—Flasks; Accessories therefor for vacuum-sealed moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/03—Sand moulds or like moulds for shaped castings formed by vacuum-sealed moulding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Description
(54) ОПОЧНАЯ ОСНАСТКА ДЛЯ ИЗГОТОВЛЕНИЯ ЛИТЕЙНЫХ ФОРМ ВАКУУМНОЙ ФОРМОВКОЙ(54) ADDITIONAL EQUIPMENT FOR THE MANUFACTURE OF CASTING FORMS VACUUM FORM
II
Изобретение относитс к литейному производству , в частности к конструкции опочной оснастки дл литейных форм, изготовленных методом вакуумной формовки.The invention relates to a foundry, in particular, to the construction of ancillary equipment for molds made by vacuum molding.
Известна конструкци опочной оснастки дл изготовлени литейных форм вакуумной формовкой, содержаща подоночную плиту и опоку, имеющую корпус, в котором выполнена система вентил ции формы в виде кольцевого канала по периметру опоки с вентил ционными отверсти ми, перекрытыми мелко чеистым фильтром. Принципиальным отличием вакуумных опок от традиционных вл етс функци создани равномерного распределени вакуума в форме , котора осуществл етс устройством вентил ции формы. В известных способах повышение равномерности распределени вакуума в форме достигаетс за счет индивидуальных средств, когда конструкци опоки и устройства вентил ции приспосабливаетс к конфигурации отливки. Такие опоки имеют ограниченное применение, так называемые специальные опоки. В универсальных опоках система вентил ции выполн етс в боковых стенках, поэтому пристеночные и центральные объе.мы формы наход тс в неравных услови х вакуумировани 1.The known design of the tooling for the manufacture of casting molds by vacuum molding, comprising a subsoil plate and a flask, having a housing in which a mold ventilation system is provided in the form of an annular channel around the perimeter of the flask with ventilation holes blocked by a fine mesh filter. The principal difference between vacuum flasks and traditional flasks is the function of creating a uniform distribution of vacuum in the form, which is carried out by a device for ventilation of the form. In the known methods, an increase in the uniform distribution of the vacuum in the mold is achieved by individual means when the design of the flask and the ventilation device adapts to the configuration of the casting. Such flasks have limited use, so-called special flasks. In universal flasks, the ventilation system is performed in the side walls, so that the near-wall and central volumes of the mold are in unequal vacuum conditions 1.
Недостатком данной опочной оснастки вл етс неравномерное распределение вакуума в форме, обусловленное тем, что система вентил ции расположена на переферии (по боковой поверхности) формы. Поэтому прочность формы в нерабочей зоне больще, чем на рабочих поверхност х полости формы.The disadvantage of this support equipment is the uneven distribution of vacuum in the mold, due to the fact that the ventilation system is located on the periphery (on the side surface) of the mold. Therefore, the strength of the form in the non-working zone is greater than on the working surfaces of the mold cavity.
Цель изобретени - повышение равномерности распределени вакуума в формовочном .материале литейной формы.The purpose of the invention is to increase the uniform distribution of vacuum in the mold casting material.
10ten
Указанна цель достигаетс тем, что подопочна плита оборудована автономной вакуумпровод щей системой, размеры которой не выступают за габариты опоки в свету , и уплотн ющим элементом. Така система может состо ть из металлической сетки, This goal is achieved by the fact that the top-plate is equipped with an autonomous vacuum system, the dimensions of which do not protrude beyond the size of the flask in the light, and the sealing element. Such a system may consist of a metal mesh,
15 наложенной на рабочую поверхность подопочной плиты или выполнена в виде вакуумпровод щего сло из прессованной бронзы или отвержденной пористой формовочной смеси.15 superimposed on the working surface of the base plate or made in the form of a vacuum-conducting layer of pressed bronze or hardened porous molding sand.
2020
В вакуумпровод щей системе практически (дл условий вакуумной фор.мовки) невозможно создать перепа.Лг давлений, поэIn a vacuum-conducting system, it is practically impossible (for the conditions of a vacuum formating) to create a re-pressure.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792777785A SU846070A1 (en) | 1979-06-11 | 1979-06-11 | Flask equipment for producing casting moulds by vacuum moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792777785A SU846070A1 (en) | 1979-06-11 | 1979-06-11 | Flask equipment for producing casting moulds by vacuum moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU846070A1 true SU846070A1 (en) | 1981-07-25 |
Family
ID=20832704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792777785A SU846070A1 (en) | 1979-06-11 | 1979-06-11 | Flask equipment for producing casting moulds by vacuum moulding |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU846070A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855481A (en) * | 2016-06-13 | 2016-08-17 | 吴江市液铸液压件铸造有限公司 | Casting sand box |
-
1979
- 1979-06-11 SU SU792777785A patent/SU846070A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855481A (en) * | 2016-06-13 | 2016-08-17 | 吴江市液铸液压件铸造有限公司 | Casting sand box |
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