CN103611887A - Separate casting process for nozzle pipe casting - Google Patents
Separate casting process for nozzle pipe casting Download PDFInfo
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- CN103611887A CN103611887A CN201310550282.8A CN201310550282A CN103611887A CN 103611887 A CN103611887 A CN 103611887A CN 201310550282 A CN201310550282 A CN 201310550282A CN 103611887 A CN103611887 A CN 103611887A
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Abstract
The invention discloses a separate casting process for a nozzle pipe casting. The nozzle pipe casting is separately cast into a casting (A) and a casting (B). The separate casting process comprises the following steps: 1, assembling the casting (A) and the casting (B) in a welding manner, feeding the casting in a manner of placing a riser (2a) on the upper plane of the casting (B) to be capable of effectively ensuring the quality of a product, tightly casting a middle inner diameter hole of the casting (A) obtained by separate casting in a horizontal-casting vertical-pouring manner, and feeding the casting to the periphery by placing a riser (1a) at the upper part of the casting (A) under the action of a rib; and 2, forming a welding groove in a joint of the two half castings for assembly after the qualities of the casting (A) and the casting (B) are completely ensured, and performing flaw detection through one-stage ultrasonic wave after the assembly to ensure the quality of the welding groove of the product. According to the process, the nozzle pipe casting is separately cast into the casting (A) and the casting (B), which are cast separately and optimally by virtue of the casting process, so that the quality of each separate casting can be fully ensured.
Description
Technical field
The present invention relates to a kind of minute casting process, is specifically that a kind of blast tube foundry goods divides casting process.
Background technology
Blast tube foundry goods is as water distributor in the hydraulic turbine, the current that come by penstocks form one jet impulse to runner through nozzle, in nozzle, the pressure energy of current converts the kinetic energy of jet to, so blast tube is as pressure-containing parts, and its quality plays a part crucial in the hydraulic turbine.
Blast tube cast casting difficulty is very large, and traditional technique is the flat pouring technique of flat casting, as shown in Fig. 1 a-1b: the outside circle of foundry goods, little by middle muscle by inside
circleweek connects, internal layer when feeding
circleweek is all carried out feeding by middle dowel to foundry goods.Foundry goods passes through muscle (4) feeding from rising head (2) to inner circle by molten steel, because bottom is same, there is thicker muscle (4), there is larger thermal center with muscle junction, because taking effective measures in structure problem technique herein, carrying out feeding, causing foundry goods inside to have rarefaction defect.And the defect of garden on week is in the little internal diameter of foundry goods, and defect is less herein, when roughing is detected a flaw often because defect is let slip compared with little, and can expose when fine finishining, and have drainage during pressure testing, cause product rejection.
Summary of the invention
The object of the invention is to the castability defect problem existing for existing technique, at this, provide a kind of blast tube foundry goods to divide casting process; This part product by process change after product quality be guaranteed, product all meets the requirement of design completely in the use of flaw detection, pressure testing and the product of postorder.
The present invention is achieved in that a kind of blast tube foundry goods of structure divides casting process, is characterized in that: foundry goods divided and is cast as part A and part B, in the following manner:
A: the mode by welding is carried out assembly welding by part A and part B; Dividing the part B foundry goods after foundry goods is general simple shape foundry goods, adopts the upper plane of foundry goods B to place rising head
(2a)mode foundry goods is carried out to feeding, can effectively guarantee product quality; Divide the part A foundry goods after foundry goods to adopt flat mode of casting upright casting, by middle inner diameter hole casting extremely, and on top, place rising head
(1a)and the effect of passing through muscle is to outside
circlezhou Jinhang feeding, the thermal center place of both sides muscle has molten steel to carry out feeding like this, do not exist feeding less than problem, thereby also can guarantee the quality of product;
B: carry out assembly welding at two halves foundry goods junction bevelling after part A part B is ensured the quality of products completely, adopt 1 grade of ultrasonic wave to carry out defect detecting test after assembly welding, guarantee the quality of the bevel for welding of product.
The invention has the advantages that: the present invention is by dividing blast tube to cast part
a, part
bafter two foundry goods, the independent foundry goods of foundry goods, because of casting process optimization, can fully be guaranteed to the quality of each minute foundry goods, and product can meet the requirement of design completely in defect detecting test, pressure testing and the use procedure of postorder.By the improvement of this kind of casting technique, effectively stopped scrapping of product, saved resource.
accompanying drawing explanation
The former technique foundry goods of Fig. 1 a-schematic diagram (front view)
Fig. 1 b is former technique foundry goods schematic diagram (left view)
Fig. 2 foundry goods of the present invention divides casting schematic diagram (welding position schematic diagram)
Fig. 3 is that foundry goods of the present invention divides casting schematic diagram (minute casting process schematic diagram)
In figure: 1, foundry goods, 2, rising head, 3, cast gate, 4, muscle, 5, puffs,
1a, rising head, 1b, cast gate, 2a, rising head, 2b, cast gate.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail, and the technical scheme in the embodiment of the present invention is clearly and completely described, and obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As Figure 2-3, for the castability defect problem existing, casting process is changed into the casting technique mode of Fig. 2-3 under the technique experience in early stage: a kind of blast tube foundry goods divides casting process herein, foundry goods is divided and is cast as part A and part B, in the following manner:
A: the mode by welding is carried out assembly welding by part A and part B; Dividing the part B foundry goods after foundry goods is general simple shape foundry goods, adopts the upper plane of foundry goods B to place rising head
2amode foundry goods is carried out to feeding, can effectively guarantee product quality; Divide the part A foundry goods after foundry goods to adopt flat mode of casting upright casting, by middle inner diameter hole casting extremely, and on top, place rising head
1aand the effect of passing through muscle is to outside
circlezhou Jinhang feeding, the thermal center place of both sides muscle has molten steel to carry out feeding like this, do not exist feeding less than problem, thereby also can guarantee the quality of product;
B: carry out assembly welding at two halves foundry goods junction bevelling after part A part B is ensured the quality of products completely, adopt 1 grade of ultrasonic wave to carry out defect detecting test after assembly welding, guarantee the quality of the bevel for welding of product.
This part product by process change after product quality be guaranteed, product all meets the requirement of design completely in the use of flaw detection, pressure testing and the product of postorder.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. blast tube foundry goods divides a casting process, it is characterized in that: foundry goods is divided and is cast as part A and part B, in the following manner:
A: the mode by welding is carried out assembly welding by part A and part B; Dividing the part B foundry goods after foundry goods is general simple shape foundry goods, adopts the upper plane of foundry goods B to place rising head
(2a)mode foundry goods is carried out to feeding, can effectively guarantee product quality; Divide the part A foundry goods after foundry goods to adopt flat mode of casting upright casting, by middle inner diameter hole casting extremely, and on top, place rising head
(1a)and the effect of passing through muscle is to outside
circlezhou Jinhang feeding, the thermal center place of both sides muscle has molten steel to carry out feeding like this, do not exist feeding less than problem, thereby also can guarantee the quality of product;
B: carry out assembly welding at two halves foundry goods junction bevelling after part A part B is ensured the quality of products completely, adopt 1 grade of ultrasonic wave to carry out defect detecting test after assembly welding, guarantee the quality of the bevel for welding of product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310550282.8A CN103611887A (en) | 2013-11-08 | 2013-11-08 | Separate casting process for nozzle pipe casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310550282.8A CN103611887A (en) | 2013-11-08 | 2013-11-08 | Separate casting process for nozzle pipe casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103611887A true CN103611887A (en) | 2014-03-05 |
Family
ID=50162621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310550282.8A Pending CN103611887A (en) | 2013-11-08 | 2013-11-08 | Separate casting process for nozzle pipe casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103611887A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5575852A (en) * | 1978-12-01 | 1980-06-07 | Nippon Kokan Keishiyu Kk | Production of cast pipe joint |
| CN101081432A (en) * | 2007-06-04 | 2007-12-05 | 天乾（无锡）科技有限公司 | Method for founding main regulation valve body of steam turbine |
| CN201579377U (en) * | 2009-11-30 | 2010-09-15 | 徐州凯莫尔重工科技有限公司 | Transfer case body |
| CN102310938A (en) * | 2011-10-18 | 2012-01-11 | 宝鼎重工股份有限公司 | Integrally cast and formed multiple-shafting sealing position clamping sleeve pipe for boats and manufacture method |
| CN202555769U (en) * | 2012-01-19 | 2012-11-28 | 林州重机铸锻有限公司 | Horizontally molding and vertically pouring mold for cutter tooth holders for crushers |
| CN203271998U (en) * | 2013-05-24 | 2013-11-06 | 乐山沙湾天华机械制造有限责任公司 | Novel spraying nozzle pipe casting |
-
2013
- 2013-11-08 CN CN201310550282.8A patent/CN103611887A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5575852A (en) * | 1978-12-01 | 1980-06-07 | Nippon Kokan Keishiyu Kk | Production of cast pipe joint |
| CN101081432A (en) * | 2007-06-04 | 2007-12-05 | 天乾（无锡）科技有限公司 | Method for founding main regulation valve body of steam turbine |
| CN201579377U (en) * | 2009-11-30 | 2010-09-15 | 徐州凯莫尔重工科技有限公司 | Transfer case body |
| CN102310938A (en) * | 2011-10-18 | 2012-01-11 | 宝鼎重工股份有限公司 | Integrally cast and formed multiple-shafting sealing position clamping sleeve pipe for boats and manufacture method |
| CN202555769U (en) * | 2012-01-19 | 2012-11-28 | 林州重机铸锻有限公司 | Horizontally molding and vertically pouring mold for cutter tooth holders for crushers |
| CN203271998U (en) * | 2013-05-24 | 2013-11-06 | 乐山沙湾天华机械制造有限责任公司 | Novel spraying nozzle pipe casting |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Jianong Town Village 614000 Sichuan Shawan District emerging city of Leshan Province Applicant after: LESHAN TIANHUA MACHINERY MANUFACTURING CO., LTD. Address before: Jianong Town Village 614000 Sichuan Shawan District emerging city of Leshan Province Applicant before: Leshan Tianhua Machinery Manufacturing Co., Ltd. |
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| COR | Change of bibliographic data | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140305 |