CN113442354A - Casting and cladding method - Google Patents
Casting and cladding method Download PDFInfo
- Publication number
- CN113442354A CN113442354A CN202110748289.5A CN202110748289A CN113442354A CN 113442354 A CN113442354 A CN 113442354A CN 202110748289 A CN202110748289 A CN 202110748289A CN 113442354 A CN113442354 A CN 113442354A
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- CN
- China
- Prior art keywords
- casting mold
- casting
- pressing plate
- limiting block
- injection hole
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/26—Moulds or cores
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a casting and cladding method, and the equipment adopted by the method comprises a casting mould, a pressing plate and a limiting block; a liquid injection hole is formed in the center of the bottom of the casting mold; the middle part of the lower end surface of the pressing plate is fixed with the limiting block; the method comprises the following steps: bonding the upper end surface of the explosive column to the lower end of the limiting block, and pressing the pressing plate on the upper end of the casting mold; pouring an organic glass coating agent into an inner cavity of the casting mold from a liquid injection hole at the bottom of the casting mold under the condition that the lower surface of the pressing plate is kept in contact with the upper edge of the casting mold; when the liquid level of the organic glass coating agent rises to be flush with the upper end surface of the cylindrical explosive column, sealing the liquid injection hole at the bottom of the casting mold; and finishing the coating operation after the organic glass coating agent is cured. The casting coating method has stable coating quality and high yield.
Description
Technical Field
The invention relates to a casting and cladding method, and belongs to the field of charge cladding.
Background
The charge is composed of a cylindrical charge column at the center and an organic glass material coating layer coated on the end part of one end of the cylindrical charge column and the outer wall. When the coating layer of the cylindrical grain is coated by the traditional process, the casting coating process is adopted, the traditional casting mould 11 is a cylindrical part with an opening at the upper end, and the concrete casting process is as follows: pouring a predetermined amount of organic glass coating agent 5 into the inner cavity of the traditional casting mold 11, inserting the cylindrical explosive column 4 into the inner cavity of the traditional casting mold 11, and downwards extruding the cylindrical explosive column 4, wherein the extrusion process is shown in figure 1; the organic glass coating agent 5 is filled into a gap between the cylindrical grain 4 and the traditional casting mold 11 from bottom to top, so that the end part of the lower end of the cylindrical grain 4 and the outer wall are coated, and the state diagram after coating is shown in figure 2. The traditional process has the following defects during coating: firstly, when the organic glass coating agent is poured, a top-down pouring mode is adopted, air is easily wrapped into the coating agent by the operation, bubbles exist after the coating layer is cured, and the coating quality is unstable; in addition, when the cylindrical explosive column is extruded downwards, the lower pressure degree is not easy to control, and the problem of too thin coating thickness or incomplete side wall coating of the end part of the lower end of the cylindrical explosive column can be caused by too large or too small lower pressure, so that the yield is low.
Disclosure of Invention
The invention aims to solve the problems of unstable cladding quality, low yield and the like of the traditional casting cladding process, and provides a casting cladding method.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a casting and cladding method, which adopts equipment comprising a casting mould, a pressing plate and a limiting block;
the casting mould is a cylindrical part with an opening at the upper end, the size of an inner cavity of the casting mould is matched with the external size of the coated charge, and a liquid injection hole is formed in the center of the bottom of the casting mould;
the lower end face of the pressing plate is a positioning plane, and the middle part of the lower end face of the pressing plate is fixed with the limiting block;
when the lower end face of the pressing plate is tightly attached to the upper port of the casting mold, the distance between the lower end of the limiting block and the inner bottom of the casting mold is matched with the axial length of the coated charge.
The method comprises the following specific steps:
1) bonding the upper end surface of the cylindrical explosive column to the lower end of the limiting block, and pressing the pressing plate on the upper end of the casting mold to enable the cylindrical explosive column to be suspended at the upper end of the inner cavity of the casting mold;
2) pouring an organic glass coating agent into an inner cavity of the casting mold from a liquid injection hole at the bottom of the casting mold under the condition that the lower surface of the pressing plate is kept in contact with the upper edge of the casting mold; under the limiting action of the limiting block at the lower end of the pressing plate, the distance between the lower end of the cylindrical explosive column and the inner bottom of the casting mold is kept to be matched with the thickness of the coated layer of the coated end face of the explosive; under the condition of continuous pouring, the organic glass coating agent gradually fills the gap between the casting mould and the cylindrical grain from bottom to top;
3) when the liquid level of the organic glass coating agent rises to be flush with the upper end surface of the cylindrical explosive column, sealing the liquid injection hole at the bottom of the casting mold;
4) after the organic glass coating agent is solidified, the mold unloading rod is inserted into the liquid injection hole at the bottom of the casting mold, coated charge is ejected out of the inner cavity of the casting mold, and the coated charge is separated from the limiting block to complete the coating operation.
The upper end lateral wall of casting die utensil is opened there is the overflow mouth, the overflow mouth end along with the distance of casting die inner bottom and the axial length phase-match of cladding back powder charge, when organic glass cladding agent injection was too much, can follow the overflow mouth outwards flows.
Advantageous effects
According to the casting and coating method, the coating agent is poured from the bottom of the mold, and air is discharged from the upper part of the mold, so that the problem that bubbles are wrapped in the coating agent due to the fact that the coating agent is poured from top to bottom in the traditional coating process is avoided, and the coating quality of organic glass is improved; the medicine column is limited by the pressing plate and the limiting block, and the consistency of the thickness of the coating layer is ensured.
Drawings
FIG. 1 is a schematic view of an extrusion process in casting and cladding with a conventional casting mold;
FIG. 2 is a schematic view of a conventional casting mold after casting and cladding;
FIG. 3 is a schematic view of the construction of the apparatus used in the casting method of the present invention;
in the figure, 1-casting mould; 11-traditional casting mould; 2-pressing a plate; 3, a limiting block; 4-cylindrical grain; 5-organic glass coating agent;
Detailed Description
The invention is further described with reference to the following figures and examples.
Examples
The casting and cladding method adopts equipment as shown in figure 3, and comprises a casting mold 1, a pressing plate 2 and a limiting block 3;
the casting mould 1 is a cylindrical part with an opening at the upper end, the size of an inner cavity of the casting mould 1 is matched with the external size of the coated charge, and a liquid injection hole is formed in the center of the bottom of the casting mould 1;
the lower end face of the pressing plate 2 is a positioning plane, and the middle part of the lower end face of the pressing plate 2 is fixed with the limiting block 3;
when the lower end surface of the pressing plate 2 is tightly attached to the upper end opening of the casting mold 1, the distance between the lower end of the limiting block 3 and the inner bottom of the casting mold 1 is matched with the axial length of the coated charging.
The method comprises the following specific steps:
1) bonding the upper end surface of the cylindrical explosive column 4 to the lower end of the limiting block 3, and pressing the pressing plate 2 on the upper end of the casting mold 1 to enable the cylindrical explosive column 4 to be suspended at the upper end of the inner cavity of the casting mold 1;
2) keeping the lower surface of the pressing plate 2 in contact with the upper edge of the casting mold 1, and pouring an organic glass coating agent 5 into an inner cavity of the casting mold 1 from a liquid injection hole at the bottom of the casting mold; under the limiting action of a limiting block 3 at the lower end of the pressing plate 2, the distance between the lower end of the cylindrical explosive column 4 and the inner bottom of the casting mold 1 is kept to be matched with the thickness of an explosive end face coating layer after coating; under the condition of continuous pouring, the organic glass coating agent 5 gradually fills the gap between the casting mould 1 and the cylindrical grain 4 from bottom to top;
3) when the liquid level of the organic glass coating agent 5 rises to be flush with the upper end surface of the cylindrical explosive column 4, the liquid injection hole at the bottom of the casting mould 1 is sealed;
4) after the organic glass coating agent 5 is cured, a mold unloading rod is inserted into a liquid injection hole at the bottom of the casting mold 1, coated charged powder is ejected out of an inner cavity of the casting mold 1, and then the coated charged powder is separated from the limiting block 3, so that the coating operation is completed.
The lateral wall of the upper end of the casting mould 1 is provided with an overflow port, the bottom of the overflow port is matched with the axial length of the coated powder charge along the distance from the inner bottom of the casting mould 1, and when the organic glass coating agent 5 is injected too much, the organic glass coating agent can flow out from the overflow port.
Claims (2)
1. A casting and cladding method is characterized in that: the equipment adopted by the method comprises a casting mould, a pressure plate and a limiting block;
the casting mould is a cylindrical part with an opening at the upper end, the size of an inner cavity of the casting mould is matched with the external size of the coated charge, and a liquid injection hole is formed in the center of the bottom of the casting mould;
the lower end face of the pressing plate is a positioning plane, and the middle part of the lower end face of the pressing plate is fixed with the limiting block;
when the lower end face of the pressing plate is tightly attached to the upper port of the casting mold, the distance between the lower end of the limiting block and the inner bottom of the casting mold is matched with the axial length of the coated charge;
the method comprises the following specific steps:
1) bonding the upper end surface of the cylindrical explosive column to the lower end of the limiting block, and pressing the pressing plate on the upper end of the casting mold to enable the cylindrical explosive column to be suspended at the upper end of the inner cavity of the casting mold;
2) pouring an organic glass coating agent into an inner cavity of the casting mold from a liquid injection hole at the bottom of the casting mold under the condition that the lower surface of the pressing plate is kept in contact with the upper edge of the casting mold;
3) when the liquid level of the organic glass coating agent rises to be flush with the upper end surface of the cylindrical explosive column, sealing the liquid injection hole at the bottom of the casting mold;
4) after the organic glass coating agent is solidified, the mold unloading rod is inserted into the liquid injection hole at the bottom of the casting mold, coated charge is ejected out of the inner cavity of the casting mold, and the coated charge is separated from the limiting block to complete the coating operation.
2. A method of cast cladding as claimed in claim 1, wherein: and the side wall of the upper end of the casting mold is provided with an overflow port, and the distance between the bottom edge of the overflow port and the inner bottom of the casting mold is matched with the axial length of the coated charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110748289.5A CN113442354A (en) | 2021-06-30 | 2021-06-30 | Casting and cladding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110748289.5A CN113442354A (en) | 2021-06-30 | 2021-06-30 | Casting and cladding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113442354A true CN113442354A (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110748289.5A Pending CN113442354A (en) | 2021-06-30 | 2021-06-30 | Casting and cladding method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2225271A1 (en) * | 1973-04-11 | 1974-11-08 | Ducruez Raymond | Injection moulding nozzle with integral ejection ram - esp. used for deep mouldings of expanded polystyrene |
| JPH10180782A (en) * | 1996-12-24 | 1998-07-07 | Kasai Kogyo Co Ltd | Method and apparatus for molding laminated molded object |
| US20120104663A1 (en) * | 2010-10-27 | 2012-05-03 | Satoshi Ogata | Method and apparatus for forming overmolded container |
| CN203725714U (en) * | 2014-03-21 | 2014-07-23 | 博莱恩机械（昆山）有限公司 | Pouring die for parts with inwardly-sunken opening |
| CN109438143A (en) * | 2018-10-25 | 2019-03-08 | 山西北方兴安化学工业有限公司 | A kind of reversed casting coating mould |
| CN111745907A (en) * | 2019-03-27 | 2020-10-09 | 徐州祥瑞工程机械科技有限公司 | Nylon product forming die |
| CN213055676U (en) * | 2020-08-20 | 2021-04-27 | 广东紫光电气有限公司 | Vacuum casting forming die of dry type transformer coil |
-
2021
- 2021-06-30 CN CN202110748289.5A patent/CN113442354A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2225271A1 (en) * | 1973-04-11 | 1974-11-08 | Ducruez Raymond | Injection moulding nozzle with integral ejection ram - esp. used for deep mouldings of expanded polystyrene |
| JPH10180782A (en) * | 1996-12-24 | 1998-07-07 | Kasai Kogyo Co Ltd | Method and apparatus for molding laminated molded object |
| US20120104663A1 (en) * | 2010-10-27 | 2012-05-03 | Satoshi Ogata | Method and apparatus for forming overmolded container |
| CN203725714U (en) * | 2014-03-21 | 2014-07-23 | 博莱恩机械（昆山）有限公司 | Pouring die for parts with inwardly-sunken opening |
| CN109438143A (en) * | 2018-10-25 | 2019-03-08 | 山西北方兴安化学工业有限公司 | A kind of reversed casting coating mould |
| CN111745907A (en) * | 2019-03-27 | 2020-10-09 | 徐州祥瑞工程机械科技有限公司 | Nylon product forming die |
| CN213055676U (en) * | 2020-08-20 | 2021-04-27 | 广东紫光电气有限公司 | Vacuum casting forming die of dry type transformer coil |
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Application publication date: 20210928 |
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