CN114799058A - Method for manufacturing low-melting-point alloy pipeline flange on construction site - Google Patents
Method for manufacturing low-melting-point alloy pipeline flange on construction site Download PDFInfo
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- CN114799058A CN114799058A CN202210608293.6A CN202210608293A CN114799058A CN 114799058 A CN114799058 A CN 114799058A CN 202210608293 A CN202210608293 A CN 202210608293A CN 114799058 A CN114799058 A CN 114799058A
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- melting
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- cylinder
- construction site
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 39
- 239000000956 alloy Substances 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000002844 melting Methods 0.000 claims abstract description 38
- 230000008018 melting Effects 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000005266 casting Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910002065 alloy metal Inorganic materials 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000005553 drilling Methods 0.000 claims abstract description 3
- 239000003110 molding sand Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 3
- 238000007528 sand casting Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005498 polishing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910021652 non-ferrous alloy Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a method for manufacturing a low-melting-point alloy pipeline flange on a construction site. The method comprises the following steps: step A, manufacturing a melting cylinder; B. manufacturing a casting die; step C, manufacturing a sand mold; d, melting alloy metal, cutting the waste of the alloy pipe into small pieces, filling the small pieces into a melting cylinder, heating the melting cylinder by using oxyacetylene flame, and melting the waste into liquid alloy; step E, pouring; f, sand casting; and G, processing a flange blank, drilling the flange blank, processing a sealing surface and finishing the manufacture. The device used by the invention has simple structure, local materials and low cost, and the method can directly and quickly prepare a small amount of non-ferrous metal or alloy flanges which are in short supply on the engineering construction site, solve the problem of long purchasing time of the flanges, and accelerate the construction progress especially when the engineering site belongs to remote, laggard and overseas areas.
Description
Technical Field
The invention relates to a flange, in particular to a method for manufacturing a low-melting-point alloy pipeline flange on a construction site.
Background
In industrial installation engineering, nonferrous metal or alloy pipelines are installed more commonly, the nonferrous metal or alloy pipelines are connected by flanges, sometimes, the flanges (blind plates) of the nonferrous alloy pipelines need to be supplemented due to insufficient supply or design change, and the project progress is influenced because the nonferrous metal or alloy pipes are rarely stocked in general marketers in the market and the purchasing time is long; it is more difficult when the project is located in remote and laggard areas, especially in foreign projects.
The Chinese patent application with the application number of CN101875090A discloses a casting production process of a flange, and the invention is suitable for large-scale casting in factories.
Disclosure of Invention
The invention aims to solve the technical problems and provides a method for manufacturing a low-melting-point alloy pipeline flange on a construction site, which is used for manufacturing the flange on the construction site and ensuring the construction progress.
The invention solves the technical problem, and adopts the technical scheme that:
a method for manufacturing a low-melting-point alloy pipeline flange on a construction site comprises the following steps:
step A, manufacturing a melting cylinder
The melting cylinder comprises a cylinder body and a blind plate welded at the lower end of the cylinder body;
step B, manufacturing a casting mold
The casting die comprises a sleeve and a sealing plate welded at the lower end of the sleeve;
step C, manufacturing a sand mold
Molding sand is put into the casting mold, flanges with the same type are used as the mold, the upper end surface of the molding sand is molded, the connecting surface of the flanges and the alloy pipeline faces upwards, and a cavity is formed;
step D, melting the alloy metal
Cutting waste materials of the alloy pipe into small pieces, loading the small pieces into a melting cylinder, heating the melting cylinder by using oxyacetylene flame, and melting the waste materials into liquid alloy;
step E, pouring
Pouring the liquid alloy in the melting cylinder into the cavity, wherein the liquid level of the liquid alloy is flush with the upper end surface of the molding sand;
step F, founding
After the liquid alloy in the cavity is completely solidified, removing the die and taking out a flange blank;
g, processing a flange blank
And drilling a flange blank, and processing a sealing surface to finish the manufacturing.
Compared with the prior art, the invention adopting the technical scheme has the beneficial effects that:
the device used by the invention has simple structure, local materials and low cost, and the method can directly and quickly prepare a small amount of non-ferrous metal or alloy flanges which are in short supply on the engineering construction site, solve the problem of long purchasing time of the flanges, and accelerate the construction progress especially when the engineering site belongs to remote, laggard and overseas areas.
Further, the optimization scheme of the invention is as follows:
and a plurality of through holes are uniformly formed in the middle upper part of the cylinder body of the melting cylinder.
The outer peripheral surface of the cylinder body of the melting cylinder is symmetrically and fixedly connected with a radial cylinder handle.
The pouring gate is arranged on the barrel body of the melting barrel, a pouring nozzle is arranged outside the pouring gate, and the pouring nozzle is located between the two through holes and below the through holes.
Drawings
FIG. 1 is a schematic view of a melting barrel of an embodiment of the present invention;
FIG. 2 is a schematic view of a casting mold according to an embodiment of the present invention;
fig. 3 is a schematic illustration of a sand mold according to an embodiment of the present invention.
In the figure: a melting cylinder 1; 1-1 of a cylinder body; 1-2 parts of a cylinder handle; 1-3 of a through hole; 1-4 parts of a pouring nozzle; a casting die 2; 2-1 of a sleeve; 2-2 of a sealing plate; sand mould 3; 3-1 of molding sand; a cavity 3-2.
Detailed Description
The invention is further described in detail below with reference to the figures and examples.
Referring to fig. 1-3, the present embodiment is suitable for an alloy pipeline flange with a melting point below 1000 degrees, such as an aluminum alloy pipeline flange, and the flange is obtained by using a cast-in-place method, where the cast material is obtained from the waste alloy pipeline material of the same material.
A method for manufacturing a low-melting-point alloy pipeline flange on a construction site comprises the following steps:
step A, manufacturing a melting cylinder 1
The melting cylinder 1 mainly comprises a cylinder body 1-1, a blind plate (not shown in the figure), a cylinder handle 1-2 and a pouring nozzle 1-4, wherein the cylinder body 1-1 adopts a short section of a round steel pipe, the blind plate adopts a round steel plate, the blind plate is welded at the lower port of the cylinder body 1-1, a plurality of through holes 1-3 are formed in the middle upper part of the cylinder body 1-1, the through holes 1-3 are uniformly distributed along the circumference of the cylinder body 1, and the through holes 1-3 are convenient for flame heating. A pouring gate is arranged on the cylinder 1-1 below the through holes 1-3, a pouring nozzle 1-4 is welded outside the pouring gate, and the pouring nozzle 4 is positioned between the two through holes 1-3 and below the through holes 1-3. Symmetrically welding two radial cylinder handles 1-2 in the middle of the cylinder body 1-1;
step B, manufacturing a casting mold
The casting die 2 mainly comprises a sleeve 2-1 and a sealing plate 2-2, wherein the sleeve 2-1 adopts a short section of a pitch round steel pipe, and the lower port of the sleeve 2-1 is welded with the round sealing plate 2-2;
step C, manufacturing a sand mold
Placing molding sand 3-1 in a casting die 2, forming a sand mold by using a sleeve 2-1, a sealing plate 2-2 and the molding sand 3-1, molding the upper end surface of the molding sand 3-1 by using flanges of the same type as a model, enabling the connecting surface of the flanges and an alloy pipeline to face upwards, and forming a cavity 3-2 with an opening at the upper end;
step D, melting the alloy metal
Cutting waste materials of an alloy pipeline into small pieces, putting the small pieces into a melting cylinder 1, erecting a cylinder handle 1-2 by using a steel pipe or a steel plate, heating the melting cylinder 1 by using oxyacetylene flames, heating a blind plate and a cylinder body 1-1 of the melting cylinder 1, enabling the oxyacetylene flames to enter the melting cylinder 1 from through holes 1-3, accelerating the melting of the waste materials, and melting the waste materials into liquid alloy;
step E, pouring
Pouring the liquid alloy in the melting cylinder 1 into the cavity 3-2, wherein the liquid level of the liquid alloy is flush with the upper end face of the molding sand 3-1, and slowly cooling;
step F, founding
After the liquid alloy in the cavity 3-2 is completely solidified, removing the die and taking out a flange blank;
g, processing a flange blank
And processing the bolt holes of the flange blank by adopting an electric drill or a bench drill, integrally polishing burrs and heavy skins by using an angle grinder, and finely polishing a sealing surface or processing on a lathe to finish the manufacturing.
The method can directly and quickly prepare a small amount of non-ferrous metal or alloy flanges in shortage on the engineering construction site, saves the time for waiting for flange spare parts, accelerates the construction progress and ensures the construction quality.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims and their equivalents.
Claims (4)
1. A method for manufacturing a low-melting-point alloy pipeline flange on a construction site comprises the following steps:
step A, manufacturing a melting cylinder
The melting cylinder comprises a cylinder body and a blind plate welded at the lower end of the cylinder body;
step B, manufacturing a casting mold
The casting die comprises a sleeve and a sealing plate welded at the lower end of the sleeve;
step C, manufacturing a sand mold
Molding sand is put into the casting mold, flanges with the same type are used as the mold, the upper end surface of the molding sand is molded, the connecting surface of the flanges and the alloy pipeline faces upwards, and a cavity is formed;
step D, melting the alloy metal
Cutting waste materials of the alloy pipe into small pieces, loading the small pieces into a melting cylinder, heating the melting cylinder by using oxyacetylene flame, and melting the waste materials into liquid alloy;
step E, pouring
Pouring the liquid alloy in the melting cylinder into the cavity, wherein the liquid level of the liquid alloy is flush with the upper end surface of the molding sand;
step F, founding
After the liquid alloy in the cavity is completely solidified, removing the die and taking out a flange blank;
g, processing a flange blank
And drilling a flange blank, and processing a sealing surface to finish the manufacturing.
2. The method for manufacturing the low-melting-point alloy pipeline flange on the construction site according to claim 1, wherein the method comprises the following steps: and a plurality of through holes are uniformly formed in the middle upper part of the cylinder body of the melting cylinder.
3. The method for manufacturing the low-melting-point alloy pipeline flange on the construction site according to claim 1, wherein the method comprises the following steps: the outer peripheral surface of the cylinder body of the melting cylinder is symmetrically and fixedly connected with a radial cylinder handle.
4. The method for manufacturing the low-melting-point alloy pipeline flange on the construction site according to claim 1 or 2, wherein the method comprises the following steps: the pouring gate is arranged on the barrel body of the melting barrel, a pouring nozzle is arranged outside the pouring gate, and the pouring nozzle is located between the two through holes and below the through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210608293.6A CN114799058A (en) | 2022-05-31 | 2022-05-31 | Method for manufacturing low-melting-point alloy pipeline flange on construction site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210608293.6A CN114799058A (en) | 2022-05-31 | 2022-05-31 | Method for manufacturing low-melting-point alloy pipeline flange on construction site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114799058A true CN114799058A (en) | 2022-07-29 |
Family
ID=82519124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210608293.6A Withdrawn CN114799058A (en) | 2022-05-31 | 2022-05-31 | Method for manufacturing low-melting-point alloy pipeline flange on construction site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114799058A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2318516A1 (en) * | 1973-07-12 | 1977-02-11 | Cit Alcatel | Manufacture of circular waveguide transition point - uses sand mould containing tapering core and submoulds for flanges to cast aluminium alloy |
| DE2724006A1 (en) * | 1977-05-27 | 1978-12-07 | Wurzer Lothar | Flanged valve body sand casting - produced with core widened to flange diameter to save flange machining |
| CN1216102A (en) * | 1997-02-06 | 1999-05-05 | 日本酸素株式会社 | Metal melting apparatus and method therefor |
| CN102392156A (en) * | 2011-10-31 | 2012-03-28 | 河南神火铝材有限公司 | Aluminum alloy material and production method of cast-rolling stock of decorative strip of same |
| CN103060585A (en) * | 2012-12-14 | 2013-04-24 | 威瑞泰科技发展(宁波)有限公司 | Smelting method for Al-Mg-Mn-Cu-Ti aluminum alloy |
| CN106111913A (en) * | 2016-06-30 | 2016-11-16 | 娄土岭 | A kind of flange casting technique |
| CN107699743A (en) * | 2017-09-30 | 2018-02-16 | 南京惠德机械有限公司 | A kind of production technology of corrosion resistant automobile exhaust system adpting flange |
| CN108144982A (en) * | 2017-12-23 | 2018-06-12 | 南京法洛尼亚建材有限公司 | A kind of production method for the Aluminum sheets for being used to prepare metal mosaic |
| CN214442870U (en) * | 2020-12-24 | 2021-10-22 | 天津市航宇嘉瑞科技股份有限公司 | Composite die for casting flange product |
-
2022
- 2022-05-31 CN CN202210608293.6A patent/CN114799058A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2318516A1 (en) * | 1973-07-12 | 1977-02-11 | Cit Alcatel | Manufacture of circular waveguide transition point - uses sand mould containing tapering core and submoulds for flanges to cast aluminium alloy |
| DE2724006A1 (en) * | 1977-05-27 | 1978-12-07 | Wurzer Lothar | Flanged valve body sand casting - produced with core widened to flange diameter to save flange machining |
| CN1216102A (en) * | 1997-02-06 | 1999-05-05 | 日本酸素株式会社 | Metal melting apparatus and method therefor |
| CN102392156A (en) * | 2011-10-31 | 2012-03-28 | 河南神火铝材有限公司 | Aluminum alloy material and production method of cast-rolling stock of decorative strip of same |
| CN103060585A (en) * | 2012-12-14 | 2013-04-24 | 威瑞泰科技发展(宁波)有限公司 | Smelting method for Al-Mg-Mn-Cu-Ti aluminum alloy |
| CN106111913A (en) * | 2016-06-30 | 2016-11-16 | 娄土岭 | A kind of flange casting technique |
| CN107699743A (en) * | 2017-09-30 | 2018-02-16 | 南京惠德机械有限公司 | A kind of production technology of corrosion resistant automobile exhaust system adpting flange |
| CN108144982A (en) * | 2017-12-23 | 2018-06-12 | 南京法洛尼亚建材有限公司 | A kind of production method for the Aluminum sheets for being used to prepare metal mosaic |
| CN214442870U (en) * | 2020-12-24 | 2021-10-22 | 天津市航宇嘉瑞科技股份有限公司 | Composite die for casting flange product |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220729 |