CN107774922A - Resin sand removable-flask moulding produces the process of large-scale sculpture - Google Patents

Abstract

The invention discloses the process that a kind of resin sand removable-flask moulding produces large-scale sculpture, including receive model, cutting, reinforce the technological processes such as pendulum-type, design running gate system welded mesh steel loading skeleton, moulding open form, mould assembly, reinforcing cast, sand removal.Its main feature is exactly to weld different size of steelframe according to the size of cast model, can also be according to the different shape of cast model with type welding steel structure, can so steelframe be reused, and in moulding because the steelframe of weldering is with type, the dosage of resin sand can be greatly reduced, the relatively thin whole processing operation time of aspect of sand shortens, that is, has saved raw material and added production efficiency again, whole production cost is had a larger reduction.

Description

Resin sand removable-flask moulding produces the process of large-scale sculpture

Technical field

The invention belongs to casting technology field, and in particular to the technique side that a kind of resin sand removable-flask moulding produces large-scale sculpture Method.

Background technology

Resin bonded sand mould casting technique has been widely used in the production of Art Casting large piece.Traditional phenolic sand molding life It is typically all to carry out moulding using sandbox is made to produce large-scale sculpture, because large-scale sculpture member is all irregular casting, so General sand using amount is bigger during using box moulding, and process cycle is grown, and causes production cost to increase, production efficiency is relatively low.Institute With for Large-scale Artistic casting, it is necessary to invent a kind of new formative technology having compared with strong adaptability, it is desirable to it is efficient and convenient, Production efficiency is improved, reduces cost.

The content of the invention

In order to overcome above-mentioned technical problem existing for prior art, it is an object of the present invention to provide a kind of resin Sand removable-flask moulding produces the process of large-scale sculpture, and cost is low, simple to operate.

Resin sand removable-flask moulding provided by the invention produces the process of large-scale sculpture, comprises the following steps：

（1）Large-scale sculpture model is received, large-scale sculpture model is cut, is divided into several sub-models, then to each point Model is cast respectively；

（2）The outer sand mold of a sub-model is prepared, it is specific as follows：

A, pendulum-type and design running gate system：According to the shape of sub-model, woodbox enclosure wall is built by laying bricks or stones with woodbox in the surrounding of sub-model, wood Brick inner surface apart from sub-model type face beeline in more than 30cm；The structure cast system during woodbox enclosure wall is built by laying bricks or stones System；

B, netted steel skeleton is welded：Netted steel skeleton is welded according to the profile forms of sub-model, steel skeleton is apart from sub-model type face 7 ~15cm；Insert solid in woodbox enclosure wall in the marginal portion of steel skeleton；

C, moulding：Parting compound graphite powder is uniformly coated with after sub-model type face is cleaned out, spreads first in sub-model type face afterwards Layer resin sand, after tamping first layer resin sand, carries out comprehensive sanding, i.e., resin sand is filled out in woodbox enclosure wall until by sub-model and Netted steel skeleton tamps resin sand after all burying；

D, after the completion of moulding, air-vent is uniformly pricked out in outer sand mold upper surface；

E, reach after turning over type requirement, steel skeleton lifting position is firmly linked with suspender（The marginal portion of steel skeleton）, slowly lifting will be outer After sand mold separates with sub-model, overturn outer sand mold and be placed into specified location, i.e., outer sand mold it is recessed face-up；

（3）The core of a sub-model is prepared, it is specific as follows：

A, patch mud is carried out according to the thickness of technological requirement in the recessed face of above-mentioned outer sand mold；

B, pendulum-type and design running gate system：Woodbox shroud is built by laying bricks or stones on the steel skeleton edge of prominent outer sand mold, is enclosed building woodbox by laying bricks or stones Running gate system is built during cylinder；

C, netted steel skeleton is welded, net-shaped steel skeleton edges are inserted solid in woodbox shroud；

D, moulding：Resin sand is filled out in the non-cylinder of woodbox until netted steel skeleton is buried, and tamps resin sand；

E, after the completion of moulding, air-vent is uniformly pricked out in core upper surface；

F, position line is demarcated in the side of outer sand mold and core；

G, reach after turning over type requirement, the steel skeleton that core is firmly linked with suspender lifts by crane position（The marginal portion of steel skeleton）, slowly rise Hang, after outer sand mold is separated with core, upset core is placed into specified location, i.e. the protrusion of core is face-up；

（4）The slice on outer sand mold recessed face and core projecting surface is removed, and after cleaning, is protruded in outer sand mold recessed face and core Uniform brushing alcohol radical fireproof coating, then lights after ethanol fully burns, clears up again on face；

（5）Mould assembly：The steel skeleton for tangling outer sand mold and core respectively with suspender plays hanging part, is positioned by position line, by outer sand mold Mould assembly is carried out with core, the steel skeleton for then welding outer sand mold and core is fastened；

（6）Outer sand mold and core after mould assembly is hung in pouring metal melt is carried out in pouring pit, complete the casting of a sub-model； Open form afterwards, obtain sub-model casting；

（7）Repeat step（2）~（6）, obtain all sub-model casting；

（8）After all sub-model casting comparison models are carried out into overall package welding, that is, obtain large-scale sculpture casting.

Resin sand removable-flask moulding provided by the invention produces the process of large-scale sculpture, and its advantage is, can be with Different size of steel skeleton is welded according to the size of cast model, steel can also be welded with type according to the different shape of cast model Frame, can so steelframe be reused, and can greatly reduce the use of resin sand because the steelframe of weldering is with type in moulding Amount, whole processing operation time shorten, that is, have saved raw material and improved production efficiency again, whole production cost is had one Larger reduction.

Embodiment

With reference to one embodiment, to the process of the large-scale sculpture of resin sand removable-flask moulding provided by the invention production It is described in detail.

Embodiment

The resin sand removable-flask moulding of the present embodiment produces the process of large-scale sculpture, comprises the following steps：

（1）Large-scale sculpture model is received, large-scale sculpture model is cut, is divided into several sub-models, then to each point Model is cast respectively；

（2）The outer sand mold of a sub-model is prepared, it is specific as follows：

A, pendulum-type and design running gate system：According to the shape of sub-model, woodbox enclosure wall is built by laying bricks or stones with woodbox in the surrounding of sub-model, wood Brick inner surface apart from sub-model type face beeline in 35cm；Running gate system is built during woodbox enclosure wall is built by laying bricks or stones；

B, netted steel skeleton is welded：Netted steel skeleton is welded according to the profile forms of sub-model, steel skeleton is apart from sub-model type face 15cm；Insert solid in woodbox enclosure wall in the marginal portion of steel skeleton；

C, moulding：Parting compound graphite powder is uniformly coated with after sub-model type face is cleaned out, spreads first in sub-model type face afterwards Layer resin sand, after tamping first layer resin sand, carries out comprehensive sanding, i.e., resin sand is filled out in woodbox enclosure wall until by sub-model and Netted steel skeleton tamps resin sand after all burying；

D, after the completion of moulding, air-vent is uniformly pricked out in outer sand mold upper surface；

E, reach after turning over type requirement, steel skeleton lifting position is firmly linked with suspender（The marginal portion of steel skeleton）, slowly lifting will be outer After sand mold separates with sub-model, overturn outer sand mold and be placed into specified location, i.e., outer sand mold it is recessed face-up；

（3）The core of a sub-model is prepared, it is specific as follows：

A, patch mud is carried out according to the thickness of technological requirement in the recessed face of above-mentioned outer sand mold；

B, pendulum-type and design running gate system：Woodbox shroud is built by laying bricks or stones on the steel skeleton edge of prominent outer sand mold, is enclosed building woodbox by laying bricks or stones Running gate system is built during cylinder；

C, netted steel skeleton is welded, net-shaped steel skeleton edges are inserted solid in woodbox shroud；

D, moulding：Resin sand is filled out in the non-cylinder of woodbox until netted steel skeleton is buried, and tamps resin sand；

E, after the completion of moulding, air-vent is uniformly pricked out in core upper surface；

F, position line is demarcated in the side of outer sand mold and core；

G, reach after turning over type requirement, the steel skeleton that core is firmly linked with suspender lifts by crane position（The marginal portion of steel skeleton）, slowly rise Hang, after outer sand mold is separated with core, upset core is placed into specified location, i.e. the protrusion of core is face-up；

（4）The slice on outer sand mold recessed face and core projecting surface is removed, and after cleaning, is protruded in outer sand mold recessed face and core Uniform brushing alcohol radical fireproof coating, then lights after ethanol fully burns, clears up again on face；

（5）Mould assembly：The steel skeleton for tangling outer sand mold and core respectively with suspender plays hanging part, is positioned by position line, by outer sand mold Mould assembly is carried out with core, the steel skeleton for then welding outer sand mold and core is fastened；

（6）Outer sand mold and core after mould assembly is hung in pouring metal melt is carried out in pouring pit, complete the casting of a sub-model； Open form afterwards, obtain sub-model casting；

（7）Repeat step（2）~（6）, obtain all sub-model casting；

（8）After all sub-model casting comparison models are carried out into overall package welding, that is, obtain large-scale sculpture casting.

Claims (1)

1. a kind of resin sand removable-flask moulding produces the process of large-scale sculpture, it is characterised in that：Comprise the following steps：

（1）Large-scale sculpture model is received, large-scale sculpture model is cut, is divided into several sub-models, then

Each sub-model is cast respectively；

（2）The outer sand mold of a sub-model is prepared, it is specific as follows：

A, pendulum-type and design running gate system：According to the shape of sub-model, woodbox enclosure wall is built by laying bricks or stones with woodbox in the surrounding of sub-model, wood Brick inner surface apart from sub-model type face beeline in more than 30cm；The structure cast system during woodbox enclosure wall is built by laying bricks or stones System；

B, netted steel skeleton is welded：Netted steel skeleton is welded according to the profile forms of sub-model, steel skeleton is apart from sub-model type face 7 ~15cm；Insert solid in woodbox enclosure wall in the marginal portion of steel skeleton；

C, moulding：Parting compound graphite powder is uniformly coated with after sub-model type face is cleaned out, spreads first in sub-model type face afterwards Layer resin sand, after tamping first layer resin sand, carries out comprehensive sanding, i.e., resin sand is filled out in woodbox enclosure wall until by sub-model and Netted steel skeleton tamps resin sand after all burying；

D, after the completion of moulding, air-vent is uniformly pricked out in outer sand mold upper surface；

E, reach after turning over type requirement, steel skeleton lifting position is firmly linked with suspender（The marginal portion of steel skeleton）, slowly lifting will be outer After sand mold separates with sub-model, overturn outer sand mold and be placed into specified location, i.e., outer sand mold it is recessed face-up；

（3）The core of a sub-model is prepared, it is specific as follows：

A, patch mud is carried out according to the thickness of technological requirement in the recessed face of above-mentioned outer sand mold；

B, pendulum-type and design running gate system：Woodbox shroud is built by laying bricks or stones on the steel skeleton edge of prominent outer sand mold, is enclosed building woodbox by laying bricks or stones Running gate system is built during cylinder；

C, netted steel skeleton is welded, net-shaped steel skeleton edges are inserted solid in woodbox shroud；

D, moulding：Resin sand is filled out in the non-cylinder of woodbox until netted steel skeleton is buried, and tamps resin sand；

E, after the completion of moulding, air-vent is uniformly pricked out in core upper surface；

F, position line is demarcated in the side of outer sand mold and core；

G, reach after turning over type requirement, the steel skeleton that core is firmly linked with suspender lifts by crane position（The marginal portion of steel skeleton）, slowly rise Hang, after outer sand mold is separated with core, upset core is placed into specified location, i.e. the protrusion of core is face-up；

（4）The slice on outer sand mold recessed face and core projecting surface is removed, and after cleaning, is protruded in outer sand mold recessed face and core Uniform brushing alcohol radical fireproof coating, then lights after ethanol fully burns, clears up again on face；

（5）Mould assembly：The steel skeleton for tangling outer sand mold and core respectively with suspender plays hanging part, is positioned by position line, by outer sand mold Mould assembly is carried out with core, the steel skeleton for then welding outer sand mold and core is fastened；

（6）Outer sand mold and core after mould assembly is hung in pouring metal melt is carried out in pouring pit, complete the casting of a sub-model； Open form afterwards, obtain sub-model casting；

（7）Repeat step（2）~（6）, obtain all sub-model casting；

（8）After all sub-model casting comparison models are carried out into overall package welding, that is, obtain large-scale sculpture casting.