CN101462295B - Method for producing ceramic lift tube without demoulding line - Google Patents
Method for producing ceramic lift tube without demoulding line Download PDFInfo
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- CN101462295B CN101462295B CN2009100762860A CN200910076286A CN101462295B CN 101462295 B CN101462295 B CN 101462295B CN 2009100762860 A CN2009100762860 A CN 2009100762860A CN 200910076286 A CN200910076286 A CN 200910076286A CN 101462295 B CN101462295 B CN 101462295B
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Abstract
The invention discloses a method for producing a ceramic riser tube without stripping lines, which belongs to the technical field of casting. The method mainly solves the problem that the prior ceramic riser tube is easy to crack during the use due to the fact that the stripping lines exist, and comprises the steps of: adopting an integral type seamless plaster cylinder mold, filling a ceramic raw material into the mold, using a special tool to eject a blank of the ceramic riser tube without the stripping lines after the raw material is hardened, and obtaining a finished product after the finishing. A method for producing the integral type seamless plaster cylinder mold (6) comprises the following steps: a steel wire gauze (1) is used to be enclosed into a hollow drum-shaped cylinder (2), both ends of the hollow drum-shaped cylinder are welded with a flange (3) respectively, the outer side surface of the steel wire gauze (1) is tightly wound with a plastic thin-film layer (4), a matched metallic cylindrical master die (5) is placed into the hollow drum-shaped cylinder (2), then plaster slurry is filled into a gap between the cylindrical master die (5) and the plastic thin-film layer (4), and the special tool is used to eject the cylindrical master die (5) after plaster is solidified to obtain the integral type seamless plaster cylinder mold (6). The method can ensure the integral continuity of the outer surface of the ceramic riser tube, and the ceramic riser tube has even surface strength and no weak position, so the ceramic riser tube is difficult to crack, has long service life, is favorable for normal production, is easy to implement, and has low cost.
Description
Technical field
The invention belongs to casting technology field, relate to the preparation method of the ceramic lift tube of no demoulding line.
Background technology
Ceramic lift tube is in the low pressure casting, the fusion casting liq flows into the only way which must be passed in the mold, the quality of its performance quality directly influence is produced, in the prior art, the making of ceramic lift tube, be to adopt two left sides, the semi-circular external mold of gypsum of right symmetrical configuration, forming method is, two semi-circular external molds of gypsum are lumped together fix, form round tube mould, in round tube mould, pour into ceramic raw material again, treat to open two semi-circular external molds of gypsum after the ceramic raw material sclerosis, promptly obtain the ceramic lift tube blank, a demoulding line is respectively arranged on these blank two sides, two semi-circular external molds form when lumping together, and must these two demoulding lines be removed with manual method when blank is repaired, and this just must cause the whole continuity of outer surface of ceramic lift tube to be damaged, form weak faying face in the demoulding line position, finally cause ceramic lift tube in use easily along demoulding line position cracking, thereby influence the service life of ceramic lift tube, influence ordinary production.
Summary of the invention
The technical problem that solves:
Adopt integral type seamless plaster cylinder mold to make ceramic lift tube, can overcome the deficiencies in the prior art, can produce the ceramic lift tube of no demoulding line, can guarantee the whole continuity of outer surface of ceramic lift tube, eliminate weak link, the surface strength of ceramic lift tube is even, there is not weak part, therefore, not easy to crack, long service life helps ordinary production.
The technical scheme that adopts:
The preparation method of the ceramic lift tube of no demoulding line, it is characterized in that: as follows according to the order of sequence, at first, make integral type seamless plaster cylinder mold, earlier make hollow cartridge type cylinder with steel wire, the spot welding of going forward side by side is fixed, respectively weld a ring flange at the two ends of hollow cartridge type cylinder again, afterwards, the winding plastic thin layer of density on the lateral surface of steel wire, and supporting surface is scribbled releasing agent round metal column type master mold coaxial line type put into hollow cartridge type cylinder, be formed with spacing δ between the outer wall of column type master mold and the plastic film layers, then, in the space that spacing δ forms, water calcium plaster through the gap S between the centre bore internal orifice of the outer wall of column type master mold and ring flange, after treating gypsum sets, with specific purpose tool the column type master mold is ejected in the integral type seamless plaster cylinder mold and to take away, promptly get the integral type seamless plaster cylinder mold that wall thickness is δ;
Secondly, with the inner wall surface of integral type seamless plaster cylinder mold coat releasing agent in place after, perfusion ceramic raw material in its tube, and treat that ceramic raw material hardens;
Once more, after ceramic raw material the to be poured into sclerosis, the ceramic lift tube blank that will not have demoulding line with specific purpose tool integral body in the integral type seamless plaster cylinder mold ejects to be taken away, and promptly getting does not have the ceramic lift tube of demoulding line blank;
At last, the ceramic lift tube blank of no demoulding line is put in order, promptly getting does not have the ceramic lift tube of demoulding line finished product.
Beneficial effect:
Owing to adopt integral type seamless plaster cylinder mold to make ceramic lift tube, so do not have demoulding line on the outer surface of ceramic lift tube, can guarantee the whole continuity of outer surface of ceramic lift tube, the surface strength of ceramic lift tube is even, does not have weak part, therefore, not easy to crack, long service life; Help ordinary production, and easily implement, cost is low; And integral type seamless plaster cylinder mold, easily cost of manufacture is low, saves gypsum raw material.
Description of drawings
Fig. 1, integral type seamless plaster cylinder mold are made structural representation;
The specific embodiment
Further explanation in detail in conjunction with the accompanying drawings;
As shown in Figure 1, the preparation method of the ceramic lift tube of no demoulding line is, at first, make integral type seamless plaster cylinder mold 6, as follows according to the order of sequence, earlier make hollow cartridge type cylinder 2 with steel wire 1, the spot welding of going forward side by side is fixed, respectively weld a ring flange 3 at the two ends of hollow cartridge type cylinder 2 again, afterwards, the winding plastic thin layer 4 of density on the lateral surface of steel wire 1, and supporting surface is scribbled releasing agent round metal column type master mold 5 coaxial line types put into hollow cartridge type cylinder 2, be formed with spacing δ between the outer wall of column type master mold 5 and the plastic film layers 4, then, through the gap S between the centre bore internal orifice of the outer wall of column type master mold 5 and ring flange 3 waters calcium plaster, treats gypsum sets in the space that spacing δ forms after, with specific purpose tool column type master mold 5 is ejected in the integral type seamless plaster cylinder mold 6 and to take away, promptly getting wall thickness is the integral type seamless plaster cylinder mold 6 of δ;
Secondly, with the inner wall surface of integral type seamless plaster cylinder mold 6 coat releasing agent in place after, perfusion ceramic raw material in its tube, and treat that ceramic raw material hardens;
Once more, after the ceramic raw material sclerosis to be poured into, the ceramic lift tube blank that will not have demoulding line with specific purpose tool ejects from integral type seamless plaster cylinder mold 6 interior integral body to be taken away, and promptly getting does not have the ceramic lift tube of demoulding line blank;
At last, the ceramic lift tube blank of no demoulding line is put in order, promptly getting does not have the ceramic lift tube of demoulding line finished product.
Integral type seamless plaster cylinder mold after the calcium plaster of pouring solidifies, can be peeled plastic film layers 4 off in making.
Gap S between the centre bore internal orifice of the outer wall of column type master mold 5 and ring flange 3 should be less than or equal to the spacing δ between itself and the plastic film layers 4.
Integral type seamless plaster cylinder mold can repeatedly be used, till gypsum is aging;
Make the specification of integral type seamless plaster cylinder mold and decide according to the specification of the ceramic lift tube of the no demoulding line of required making, generally speaking, the wall thickness δ of integral type seamless plaster cylinder mold 6 is 10～30mm.
Eject column type master mold 5 and eject the used specific purpose tool of ceramic lift tube blank of no demoulding line, roughly the same unload the son of taking off that automotive wheels uses, have the threaded mandrel 7 supporting with nut 8, even distribution type is contained in the claw 9 on the nut 8; During use, claw 9 colludes at one end the ring flange 3, threaded mandrel 7 withstands on the female film 5 of column type or does not have on the ceramic lift tube blank of demoulding line from the other end, rotates hand lever 10 and can realize ejecting, and the external diameter of threaded mandrel 7 needs supporting with the internal diameter of integral type seamless plaster cylinder film 6.
Claims (1)
1. the preparation method of not having the ceramic lift tube of demoulding line, it is characterized in that: as follows according to the order of sequence, at first, make integral type seamless plaster cylinder mold (6), earlier make hollow cartridge type cylinder (2) with steel wire (1), the spot welding of going forward side by side is fixed, respectively weld a ring flange (3) at the two ends of hollow cartridge type cylinder (2) again, afterwards, the winding plastic thin layer (4) of density on the lateral surface of steel wire (1), and supporting surface is scribbled releasing agent round metal column type master mold (5) coaxial line type put into hollow cartridge type cylinder (2), be formed with spacing δ between the outer wall of column type master mold (5) and the plastic film layers (4), then, in the space that spacing δ forms, water calcium plaster through the gap S between the centre bore internal orifice of the outer wall of column type master mold (5) and ring flange (3), after treating gypsum sets, with specific purpose tool column type master mold (5) is ejected in the integral type seamless plaster cylinder mold (6) and to take away, promptly get the integral type seamless plaster cylinder mold that wall thickness is δ (6);
Secondly, with the inner wall surface of integral type seamless plaster cylinder mold (6) coat releasing agent in place after, perfusion ceramic raw material in its tube, and treat that ceramic raw material hardens;
Once more, after the ceramic raw material sclerosis to be poured into, the ceramic lift tube blank that will not have demoulding line with specific purpose tool ejects from the interior integral body of integral type seamless plaster cylinder mold (6) to be taken away, and promptly getting does not have the ceramic lift tube of demoulding line blank;
At last, the ceramic lift tube blank of no demoulding line is put in order, promptly getting does not have the ceramic lift tube of demoulding line finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100762860A CN101462295B (en) | 2009-01-09 | 2009-01-09 | Method for producing ceramic lift tube without demoulding line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100762860A CN101462295B (en) | 2009-01-09 | 2009-01-09 | Method for producing ceramic lift tube without demoulding line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101462295A CN101462295A (en) | 2009-06-24 |
| CN101462295B true CN101462295B (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100762860A Expired - Fee Related CN101462295B (en) | 2009-01-09 | 2009-01-09 | Method for producing ceramic lift tube without demoulding line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101462295B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039984A (en) * | 1988-08-03 | 1990-02-28 | 鞍山钢铁公司 | Totally casting compound lift-liquid pipe and manufacturing method thereof |
| CN2318017Y (en) * | 1998-01-23 | 1999-05-12 | 张新禄 | Mould for wire pole |
| EP1905561A2 (en) * | 2006-09-27 | 2008-04-02 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Equipment for the manufacture of ceramic sanitary wares |
-
2009
- 2009-01-09 CN CN2009100762860A patent/CN101462295B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039984A (en) * | 1988-08-03 | 1990-02-28 | 鞍山钢铁公司 | Totally casting compound lift-liquid pipe and manufacturing method thereof |
| CN2318017Y (en) * | 1998-01-23 | 1999-05-12 | 张新禄 | Mould for wire pole |
| EP1905561A2 (en) * | 2006-09-27 | 2008-04-02 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Equipment for the manufacture of ceramic sanitary wares |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101462295A (en) | 2009-06-24 |
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Granted publication date: 20110216 Termination date: 20180109 |