CN112355249A - Coating and hanging tool for preparing shell sample and shell sample preparation method - Google Patents
Coating and hanging tool for preparing shell sample and shell sample preparation method Download PDFInfo
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- CN112355249A CN112355249A CN202011180572.4A CN202011180572A CN112355249A CN 112355249 A CN112355249 A CN 112355249A CN 202011180572 A CN202011180572 A CN 202011180572A CN 112355249 A CN112355249 A CN 112355249A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C13/00—Moulding machines for making moulds or cores of particular shapes
- B22C13/08—Moulding machines for making moulds or cores of particular shapes for shell moulds or shell cores
- B22C13/085—Moulding machines for making moulds or cores of particular shapes for shell moulds or shell cores by investing a lost pattern
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Abstract
The invention discloses a coating and hanging tool for preparing a shell sample and a shell sample preparation method, wherein the coating and hanging tool is used for clamping a wax mould base body and coating and hanging sand on a coating and hanging surface of the wax mould base body to prepare the shell sample, the coating and hanging tool comprises a support frame, a clamping mechanism for clamping the wax mould base body, a protection mechanism for protecting the non-coating and hanging surface of the wax mould base body and a control mechanism for controlling the protection mechanism are arranged on the support frame, the control mechanism controls the protection mechanism to be attached to the non-coating and hanging surface of the wax mould base body, so that the non-coating and hanging surface is prevented from being stained and bonded with materials when coating and hanging sand on the coating and hanging surface, and the control mechanism controls the protection mechanism to be separated from the non-coating and hanging surface of the wax mould base body, so that each layer of coating and hanging sand on the coating and hanging surface of the shell sample on the wax mould.
Description
Technical Field
The invention relates to the technical field of investment casting, in particular to a coating tool for shell sample preparation and a shell sample preparation method.
Background
The investment precision casting process can integrally manufacture castings with complex thin walls and curved surface shapes, has the characteristics of high precision, small machining allowance and the like, and is widely applied to the manufacturing process of precision parts of aviation, aerospace, weapons and the like. The shell in the investment precision casting process has a precise part shape cavity and needs to receive high-temperature alloy molten metal, so in order to ensure the size of a precision part and prevent metallurgical defects, the shell has excellent thermal shock resistance, comprehensive heat transfer performance and the like, meanwhile, as the shell is generally composed of a plurality of layers of refractory materials with different types, granularities, meshes and the like, the shape and the size of the shell are difficult to control, a shell sample is required to be prepared firstly to detect whether the size, the heat transfer and other performance parameters of the shell meet the requirements, and the related size performance detection equipment has certain limitation requirements on the detection of the shape and the size of the shell sample, so that only part of size performance parameters of the shell sample can be obtained, and the final shape regulation and control of the precision casting cannot be achieved. When the existing shell sample is prepared, when coating and sand hanging are carried out on a coating and hanging surface, the non-coating and hanging surface is stained with the material and sand sticking, so that the shape and the size of the shell sample are deviated, the excess material needs to be removed after the shell sample is prepared, the preparation efficiency of the shell sample is reduced, and particularly, only one surface of the wax mold substrate is coated with the hanging surface for preparing the shell sample with the unidirectional surface layer.
Disclosure of Invention
The invention provides a coating and hanging tool for shell sample preparation and a shell sample preparation method, and aims to solve the technical problems that the shape and the size of a shell sample are deviated and the shell sample preparation efficiency is reduced due to material sticking and sand sticking on a non-coated surface during the existing shell sample preparation.
According to one aspect of the invention, the coating and hanging tool for preparing the shell sample is used for clamping a wax mould base body to coat and hang sand on a coating and hanging surface of the wax mould base body to prepare the shell sample, and comprises a support frame, wherein a clamping mechanism for clamping the wax mould base body, a protection mechanism for protecting the non-coating and hanging surface of the wax mould base body and a control mechanism for controlling the protection mechanism are installed on the support frame, the control mechanism is used for controlling the protection mechanism to be attached to the non-coating and hanging surface of the wax mould base body, so that the non-coating and hanging surface is prevented from being stained and sand-sticking when the coating and hanging are carried out on the coating and hanging surface, and the control mechanism is used for controlling the protection mechanism to be separated from the non-coating and hanging surface of the wax mould base body, so that the shell sample on the coating and hanging surface of the wax mould base body can be dried after each layer.
Furthermore, a plurality of fixture install on the support frame, fixture and protection mechanism one-to-one, and a plurality of protection mechanism are connected with control mechanism, and a plurality of protection mechanism of simultaneous control protect the non-coating hanging surface of a plurality of wax matrix base members through control mechanism, and then carry out coating on the coating hanging surface of a plurality of wax matrix base members simultaneously and hang the sand.
Further, the protection mechanism comprises a protection plate used for being attached to the coating surface of the wax mould base body and a pre-tightening spring used for connecting the protection plate and the supporting frame and used for tightening the protection plate to the wax mould base body.
Furthermore, a plurality of protection plates are installed on the support frame through pre-tightening springs so as to respectively protect a plurality of non-coating surfaces of the wax mould base body.
Furthermore, the control mechanism comprises a control cable connected with the protection plate and a winding unit used for stretching the control cable, and the control cable is stretched or contracted through the winding unit, so that the protection plate is driven to be attached to or separated from the non-coated surface of the wax mold base body.
Further, the control cable includes the trunk of being connected with the rolling unit, many first branches of being connected with the trunk and many second branches of being connected with first branch, first branch and protection mechanism one-to-one, second branch and control mechanism's guard plate one-to-one are connected with a plurality of guard plates through many second branches, and then extend or shrink the trunk through the rolling unit to drive a plurality of guard plates on a plurality of protection mechanisms and a plurality of non-coating hanging surfaces of wax matrix laminate or separate simultaneously.
Further, the support frame comprises a support rod for mounting the control mechanism, a protective frame for mounting the clamping mechanism and the protective mechanism, and a connecting rod for connecting the support rod and the protective frame.
Further, the clamping mechanism comprises a plurality of clamping blocks arranged on the supporting frame, and the clamping blocks are embedded into the wedge-shaped part of the edge of the wax pattern base body, so that the wax pattern base body is stably clamped.
According to another aspect of the invention, the invention further provides a shell sample preparation method, and the coating tool prepared by adopting the shell sample comprises the following steps: clamping and fixing the wax mould base body on a clamping mechanism; the control mechanism controls the protective mechanism to be in fit protection with the non-coating surface of the wax mould base body; dipping the wax mould substrate clamped by the coating and hanging tool into the coating for coating and hanging a first layer of sand so as to form a first layer of a shell sample on the coating and hanging surface of the wax mould substrate; the control mechanism controls the protection mechanism to be separated from the non-coating surface of the wax mould base body, and the first layer of the shell sample is dried, so that the preparation of the first layer of the shell sample is completed; the multilayer preparation of the shell sample is completed by the same method; and (4) inverting the coating tool, and performing inverted dewaxing and roasting treatment on the wax mold matrix to prepare the shell sample.
Further, when the shell sample is dried, the control mechanism controls the protection mechanism to be separated from the non-coating surface of the wax mould base body, and the distance between the protection mechanism and the non-coating surface of the wax mould base body is 3-15 mm.
The invention has the following beneficial effects:
according to the coating and hanging tool for preparing the shell sample, the wax mould base body is clamped and fixed through the clamping mechanism, and the control mechanism controls the protective mechanism to be attached to the non-coating surface of the wax mould base body, so that when coating and sand hanging are carried out on the coating and hanging surface of the wax mould base body, the non-coating surface of the wax mould base body cannot be stained with materials or bonded with sand, the phenomenon that the shell sample formed on the coating and hanging surface of the wax mould base body extends to the non-coating surface to cause the shape and the size of the shell sample to be inaccurate is avoided, and after each layer of coating and sand hanging of the shell sample is finished, the control mechanism controls the protective mechanism to be separated from the non-coating and hanging surface of the wax mould base body, then each layer of the shell sample is dried, so that the multi-layer preparation of the shell sample is finished by the same method, and finally the coating and hanging tool is inverted, dewaxing and roasting treatment is carried out on the wax mould base body.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a coating tool for preparing a shell sample according to a preferred embodiment of the invention;
FIG. 2 is a schematic structural diagram of a coating tool for preparing a shell sample according to a preferred embodiment of the invention;
FIG. 3 is a schematic structural view of a protective frame according to a preferred embodiment of the present invention;
fig. 4 is a schematic structural view of a guard plate according to a preferred embodiment of the present invention.
Illustration of the drawings:
1. a support frame; 11. a support bar; 111. a support plate; 12. a connecting rod; 13. a protective frame; 2. a clamping mechanism; 3. a protection mechanism; 31. a protection plate; 32. pre-tightening the spring; 4. a control mechanism; 41. a control cable; 42. and a winding unit.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.
FIG. 1 is a schematic structural diagram of a coating tool for preparing a shell sample according to a preferred embodiment of the invention; FIG. 2 is a schematic structural diagram of a coating tool for preparing a shell sample according to a preferred embodiment of the invention; FIG. 3 is a schematic structural view of a protective frame according to a preferred embodiment of the present invention; fig. 4 is a schematic structural view of a guard plate according to a preferred embodiment of the present invention.
As shown in fig. 1, the coating and hanging tool for preparing the shell sample of the embodiment is used for clamping a wax mold base body to coat and hang sand on a coating and hanging surface of the wax mold base body to prepare the shell sample, and comprises a support frame 1, wherein a clamping mechanism 2 for clamping the wax mold base body, a protection mechanism 3 for protecting the non-coating and hanging surface of the wax mold base body and a control mechanism 4 for controlling the protection mechanism 3 are installed on the support frame 1, the protection mechanism 3 is controlled to be attached to the non-coating and hanging surface of the wax mold base body through the control mechanism 4, so that material sticking and sand sticking on the non-coating and hanging surface when coating and hanging sand are carried out on the coating and hanging surface, the protection mechanism 3 is controlled to be separated from the non-coating and hanging surface of the wax mold base body through the control mechanism 4, and drying is carried out after each layer of coating and hanging sand on the coating and hanging surface of the wax mold base body. The coating and hanging tool for preparing the shell sample clamps and fixes the wax mould matrix through the clamping mechanism 2, controls the protective mechanism 3 to be attached to the non-coated surface of the wax mould matrix through the control mechanism 4, therefore, when the coating and sand hanging are carried out on the coating and hanging surface of the wax mould matrix, the non-coating surface of the wax mould matrix can not be stained with materials and bonded with sand, thereby avoiding the inaccurate shape and size of the shell sample caused by the fact that the shell sample formed on the coating surface of the wax mould substrate extends to the non-coating surface, after the sand coating of each layer of coating of the shell sample is finished, the control mechanism 4 controls the protection mechanism 3 to be separated from the non-coating surface of the wax mould matrix, and drying each layer of the shell sample so as to finish the multilayer preparation of the shell sample by the same method, finally inverting the coating tool, and performing inverted dewaxing and roasting treatment on the wax mould matrix so as to prepare the shell sample. In addition, since the non-coated surfaces of the wax pattern matrix are all attached and protected by the protection mechanism 3, the wax pattern matrix can be directly immersed into the coating, and the coated surfaces of the wax pattern matrix can be coated with sand from different directions, so that the coating and the sand on the coated surfaces are distributed more uniformly, the coating and the sand coating speed are increased, and the preparation efficiency of the shell sample is improved. Alternatively, the shell sample is square, rectangular or cylindrical. In this example, the shell sample was square and the bottom surface of the shell sample was a coated surface. The four sides and the top of the shell sample were uncoated. The four sides of the shell sample are prone to sticking and sanding. The protection mechanism 3 is used for attaching and protecting four adjacent side surfaces of the bottom surface. Optionally, the protection mechanism 3 performs the joint protection on all the non-coating surfaces on the shell sample. Optionally, the protection mechanism 3 performs joint protection on a non-coating surface adjacent to the coating surface on the shell sample.
As shown in fig. 1 and 2, a plurality of clamping mechanisms 2 are installed on a support frame 1, the clamping mechanisms 2 correspond to protection mechanisms 3 one by one, the protection mechanisms 3 are connected with a control mechanism 4, the protection mechanisms 3 are simultaneously controlled by the control mechanism 4 to protect non-coating surfaces of a plurality of wax pattern matrixes, and then coating and sand-coating are simultaneously performed on the coating surfaces of the wax pattern matrixes. The wax mould base bodies are clamped and fixed on the clamping mechanisms 2 respectively, and when the coating is hung on the sand, the control mechanism 4 controls the protection mechanisms 3 to attach and protect the non-coating surfaces of the wax mould base bodies simultaneously. When each layer of the shell sample is dried, the control mechanism 4 simultaneously controls the plurality of protection mechanisms 3 to be separated from the non-coating surfaces of the plurality of wax pattern matrixes.
As shown in fig. 1, 2 and 4, the protection mechanism 3 includes a protection plate 31 for engaging with the coating surface of the wax pattern substrate and a pretension spring 32 connecting the protection plate 31 and the support frame 1 for tensioning the protection plate 31 toward the wax pattern substrate. The protection plate 31 is tightly attached to the non-coated surface of the wax pattern substrate through a pre-tightening spring 32. The protection plates 31 are installed on the support frame 1 through pre-tightening springs 32 to respectively protect the non-coating surfaces of the wax pattern substrate. Optionally, the protection plate 31 is hinged to the support frame 1.
As shown in fig. 1, 2 and 4, the control mechanism 4 includes a control cable 41 connected to the protection plate 31 and a winding unit 42 for extending and retracting the control cable 41, and the control cable 41 is extended or retracted by the winding unit 42 to bring the protection plate 31 into and out of contact with the non-coated surface of the wax pattern substrate. Alternatively, the take-up unit 42 includes a spool to which the control wire 41 is connected and a rotating handle connected to the spool. Alternatively, the winding unit 42 includes a reel connected to the control wire 41 and a driving motor connected to the reel for driving the reel to rotate.
As shown in fig. 1 and 2, the control cable 41 includes a trunk connected to the winding unit 42, a plurality of first branches connected to the trunk, and a plurality of second branches connected to the first branches, the first branches correspond to the protection mechanisms 3 one-to-one, the second branches correspond to the protection plates 31 of the control mechanism 4 one-to-one, and are connected to the plurality of protection plates 31 through the plurality of second branches, so as to extend or contract the trunk through the winding unit 42, thereby driving the plurality of protection plates 31 of the plurality of protection mechanisms 3 to be attached to or separated from the plurality of non-coating surfaces of the wax mold base body. In the present embodiment, four second branches are connected to four guard plates 31, respectively. The wax matrix is square, and the bottom surface of wax matrix base member is for scribbling the hanging face, and four sides of wax matrix base member are for not scribbling the hanging face, and when the coating hung the sand, four guard plates 31 laminated with four sides of wax matrix base member mutually respectively, and fixture 2 centre gripping is in the top of wax matrix base member.
As shown in fig. 1 and 2, the support stand 1 includes a support rod 11 for mounting the control mechanism 4, a protection frame 13 for mounting the holding mechanism 2 and the protection mechanism 3, and a connecting rod 12 for connecting the support rod 11 and the protection frame 13. The support rod 11 is provided with a support plate 111 for supporting and fixing the coating tool on the operating table. When the paint tool is inverted to perform inverted dewaxing and roasting treatment on the wax mould base body, the protective frame 13 is positioned right below the wax mould base body, after the wax mould base body is lost, the shell sample falls on the protective frame 13, and the protective frame 13 is in a net structure, so that dewaxing and loss of the wax mould base body and roasting treatment of the shell sample are facilitated. In the present embodiment, the trunk of the control wire 41 is inserted into the support rod 11. The first branches penetrate out of the support rod 11 and are respectively laid along the corresponding connecting rods 12. The connecting rod 12 is provided with a clamp for penetrating the first branch, and the plurality of second branches are laid along the protective frame 13 and connected with the outer side surface of the protective plate 31. One end of the pre-tightening spring 32 is connected with the protection frame 13, and the other end of the pre-tightening spring 32 is connected with the top surface of the protection plate 31. The winding unit 42 winds the trunk of the control cable 41, so that the second branch pulls the protection plate 31 outwards, and the tensile force of the second branch is greater than the elastic restoring force of the pretension spring 32 pulling the protection plate 31 inwards, so that the protection plate 31 is separated from the non-coated surface of the wax pattern substrate. The winding unit 42 unwinds the trunk so that the second branch is released without applying an outward pulling force to the shielding plate 31, and the shielding plate 31 is inwardly stuck to the non-coated surface of the wax pattern base body by the elastic restoring force of the pre-tightening spring 32.
As shown in fig. 3, the clamping mechanism 2 includes a plurality of clamping blocks mounted on the supporting frame 1, and the clamping blocks are inserted into the wedge-shaped portion of the edge of the wax pattern base body, thereby stably clamping the wax pattern base body. In this embodiment, the clip block is mounted on the shield frame 13 according to the shape and size of the wax pattern base.
The method for preparing the shell sample, which is the coating tool prepared by the shell sample, comprises the following steps: clamping and fixing the wax mould base body on the clamping mechanism 2; the control mechanism 4 controls the protection mechanism 3 to be in fit protection with the non-coating surface of the wax mould base body; dipping the wax mould substrate clamped by the coating and hanging tool into the coating for coating and hanging a first layer of sand so as to form a first layer of a shell sample on the coating and hanging surface of the wax mould substrate; the control mechanism 4 is used for controlling the protection mechanism 3 to be separated from the non-coating surface of the wax mould base body, and drying the first layer of the shell sample, so that the first layer of the shell sample is prepared; the multilayer preparation of the shell sample is completed by the same method; and (4) inverting the coating tool, and performing inverted dewaxing and roasting treatment on the wax mold matrix to prepare the shell sample.
When the shell sample is dried, the control mechanism 4 controls the protection mechanism 3 to be separated from the non-coating surface of the wax mould base body, and the distance between the protection mechanism 3 and the non-coating surface of the wax mould base body is 3-15 mm.
In this example, preparing a shell sample includes the following steps: manufacturing a corresponding wax mold matrix according to the detection size requirement of the shell sample; embedding a wedge-shaped part at the top edge of the wax mould base body on a clamping block of the coating tool, thereby realizing the stable clamping of the wax mould base body; coating and shell-making a plurality of layers of wax mould matrixes in a coating and hanging tool, wherein in the process of coating and hanging each layer of wax mould matrix bottom surface, firstly, a control mechanism 4 enables a control cable 41 not to apply tension to a protection plate 31, so that a pre-tightening spring 32 pre-tightens the protection plate 31 inwards to enable the protection plate 31 to be tightly attached to the side surface of the wax mould matrix, then the wax mould matrix clamped in the coating and hanging tool is completely immersed into coating for coating and hanging, then, the structural state is kept for sand hanging, after the sand hanging is finished, a rolling unit 42 of the control mechanism 4 rolls up the control cable 41 to enable the control cable 41 to have the outward lifting function on the protection plate 31 and be larger than the inward pre-tightening function of the pre-tightening spring 32 to enable the protection plate 31 to be separated from the side surface of the wax mould matrix, and the distance between the protection plate 31 and the side surface of the wax mould matrix is kept to be 3mm-15mm, thereby facilitating the quick drying of, after the drying of one layer of shell sample is finished, the winding unit 42 of the control mechanism 4 releases the control cable 41, so that the control cable 41 does not apply outward pulling force to the protection plate 31, the protection plate 31 is tightly attached to the side surface of the wax mold matrix under the self-pretensioning action of the pretensioning spring 32, further the shell sample is coated and hung on another layer, the operations are repeated, the multilayer coating and hanging of the shell sample are finished, and the shell manufacturing is realized only by coating and hanging the bottom surface of the wax mold matrix, so that the one-way surface layer shell sample is formed. Then, the coating tool with the wax pattern matrix is inverted, dewaxing and roasting treatment are carried out, the net-shaped structure of the protective frame 13 is beneficial to melting loss of the wax pattern matrix, and the protective frame plays a role in supporting and protecting the shell sample which is inverted and loses support after dewaxing; and according to the detection requirement of the shell sample, performing surface coating smoothing treatment on the back layer of the finally obtained shell sample to ensure that the surface layer and the back layer of the shell sample are both smooth and uniform surfaces.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A coating and hanging tool for preparing a shell sample is used for clamping a wax mould matrix so as to coat and hang sand on the coating and hanging surface of the wax mould matrix to prepare the shell sample,
the coating tool comprises a support frame (1), a clamping mechanism (2) for clamping a wax mould base body, a protection mechanism (3) for protecting the non-coating surface of the wax mould base body and a control mechanism (4) for controlling the protection mechanism (3) are arranged on the support frame (1),
the control mechanism (4) is used for controlling the protection mechanism (3) to be attached to the non-coating surface of the wax mould base body, so that the non-coating surface is prevented from being stained with materials and bonded with sand when coating and sand hanging are carried out on the coating surface, the control mechanism (4) is used for controlling the protection mechanism (3) to be separated from the non-coating surface of the wax mould base body, and drying is carried out after each layer of coating of the shell sample on the coating surface of the wax mould base body is coated with sand.
2. A coating tool for shell sample preparation according to claim 1,
a plurality of fixture (2) are installed on support frame (1), fixture (2) and protection machanism (3) one-to-one, and a plurality of protection machanism (3) are connected with control mechanism (4), control a plurality of protection machanism (3) simultaneously and protect the non-face of hanging of scribbling of a plurality of wax matrix base members through control mechanism (4), and then carry out coating on the face of hanging of scribbling of a plurality of wax matrix base members simultaneously and hang the sand.
3. A coating tool for shell sample preparation according to claim 1,
the protection mechanism (3) comprises a protection plate (31) which is used for being attached to the coating surface of the wax mould base body and a pre-tightening spring (32) which is used for connecting the protection plate (31) with the support frame (1) and is used for tightening the protection plate (31) to the wax mould base body.
4. A coating tool for shell sample preparation according to claim 3,
the protection plates (31) are arranged on the support frame (1) through pre-tightening springs (32) so as to respectively protect a plurality of non-coating surfaces of the wax mould base body.
5. A coating tool for shell sample preparation according to claim 4,
the control mechanism (4) comprises a control cable (41) connected with the protection plate (31) and a winding unit (42) used for stretching and retracting the control cable (41), and the control cable (41) is stretched or contracted through the winding unit (42) so as to drive the protection plate (31) to be attached to or separated from the non-coated surface of the wax mold substrate.
6. A coating tool for shell sample preparation according to claim 5,
control cable (41) are including the trunk of being connected with rolling unit (42), many first branches of being connected with the trunk and many second branches of being connected with first branch, first branch and protection machanism (3) one-to-one, protection plate (31) one-to-one of second branch and control mechanism (4), be connected with a plurality of protection plates (31) through many second branches, and then extend or shrink the trunk through rolling unit (42), thereby drive a plurality of protection plates (31) on a plurality of protection machanism (3) and a plurality of non-coating face of wax matrix base member laminate simultaneously or separate.
7. A coating tool for shell sample preparation according to claim 1,
the support frame (1) comprises a support rod (11) used for installing the control mechanism (4), a protective framework (13) used for installing the clamping mechanism (2) and the protective mechanism (3), and a connecting rod (12) used for connecting the support rod (11) and the protective framework (13).
8. A coating tool for shell sample preparation according to claim 1,
the clamping mechanism (2) comprises a plurality of clamping blocks arranged on the support frame (1), and the clamping blocks are embedded into the wedge-shaped part of the edge of the wax mould base body, so that the wax mould base body is stably clamped.
9. A shell sample preparation method, characterized in that, the coating tool for preparing the shell sample according to any one of claims 1 to 8 comprises the following steps:
clamping and fixing the wax mould base body on the clamping mechanism (2);
the control mechanism (4) is used for controlling the protection mechanism (3) to be in fit protection with the non-coating surface of the wax mould base body;
dipping the wax mould substrate clamped by the coating and hanging tool into the coating for coating and hanging a first layer of sand so as to form a first layer of a shell sample on the coating and hanging surface of the wax mould substrate;
the control mechanism (4) is used for controlling the protection mechanism (3) to be separated from the non-coating surface of the wax mould base body, and the first layer of the shell sample is dried, so that the preparation of the first layer of the shell sample is completed;
the multilayer preparation of the shell sample is completed by the same method;
and (4) inverting the coating tool, and performing inverted dewaxing and roasting treatment on the wax mold matrix to prepare the shell sample.
10. The method for preparing a shell sample according to claim 9,
when the shell sample is dried, the control mechanism (4) is used for controlling the protection mechanism (3) to be separated from the non-coating surface of the wax mould base body, and the distance between the protection mechanism (3) and the non-coating surface of the wax mould base body is 3-15 mm.
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| CN109604536A (en) * | 2018-12-25 | 2019-04-12 | 航天海鹰(哈尔滨)钛业有限公司 | A kind of shell tooling processed of large titanium alloy Melt casting |
| CN210648369U (en) * | 2019-06-27 | 2020-06-02 | 江苏龙贞智能技术有限公司 | Mould soaks thick liquid and drenches sand tool equipment |
| CN211679896U (en) * | 2019-12-26 | 2020-10-16 | 谷城宝石花机械有限公司 | Coating and hanging device |
| CN111390114A (en) * | 2020-04-27 | 2020-07-10 | 李昌跃 | Valve casting silica sol wax mold surface treatment process |
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