CN1028726C - Casting method of reinforced pouring pipe - Google Patents
Casting method of reinforced pouring pipe Download PDFInfo
- Publication number
- CN1028726C CN1028726C CN 92101001 CN92101001A CN1028726C CN 1028726 C CN1028726 C CN 1028726C CN 92101001 CN92101001 CN 92101001 CN 92101001 A CN92101001 A CN 92101001A CN 1028726 C CN1028726 C CN 1028726C
- Authority
- CN
- China
- Prior art keywords
- casting
- feed trumpet
- box
- injection pipe
- reinforcing bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005266 casting Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 244000035744 Hura crepitans Species 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 238000000748 compression moulding Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 239000011819 refractory material Substances 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- 239000004615 ingredient Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract 4
- 239000007924 injection Substances 0.000 abstract 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Casting Devices For Molds (AREA)
- Continuous Casting (AREA)
Abstract
A casting method for reinforced central pouring tube features that after the sand box used for casting is preheated and dried, a three-opening box is used, that is, the lower sand box is fastened to the bottom plane box, the rotary cage-type reinforcing steel frame, the exhaust hole core and central hole core are respectively put in the cavity, and the upper sand box and bottom plane box are screwed together and obliquely poured. The invention is characterized in that the middle injection pipe meeting the use requirement can be produced only by casting, thereby not only saving the processing procedures of a bottom plane and an exhaust hole and reducing the production cost, but also improving the mechanical property of the middle injection pipe, increasing the tensile strength of a dangerous section and reducing the fracture caused by collision because the steel bar is added in the pipe wall of the middle injection pipe, thereby greatly prolonging the actual service life of the middle injection pipe and having obvious economic benefit.
Description
The present invention relates to a kind of casting method of feed trumpet, be specially adapted to the casting method of the reinforcement feed trumpet that steel mill uses in the metallurgical industry.
At present, the production of feed trumpet generally is at first to cast out blank, processes the baseplane then on lathe, gets out the steam vent that has 45 ° of inclinations angle, φ 15～20mm on drilling machine, promptly need just can produce qualified feed trumpet product through casting, rework process.This reaches the big foundry goods more than 3 meters to weighing 5 tons, carries out baseplane reprocessing, and drilling has the steam vent at certain inclination angle, not only processing technology complexity, and production cost, and fabrication cycle is long.
The application for a patent for invention " casting method of feed trumpet " (application number 90107435.7) that No.3 Casting Plant, Multiple-Producing Enterprises Co., Baoto Steel and Iron Co. submits to is cast used sandbox behind preheating and drying, the method for adopt three part box, placing cap mouth, inclined casting.Three-cavity moulding divides cope, drag box and baseplane case, and wherein cope and drag box are the entities of casting feed trumpet, with the fuse that the feed trumpet centre bore is used, all adopts general molding sand to make.The fuse of steam vent is that to adopt internal diameter be to irritate the tamping of coke powder in the seamless steel pipe of φ 15～20mm to make, and is difficult for the difficult problem of little core down thereby solved heavy castings.The baseplane case aims at the baseplane that makes high flatness feed trumpet and designs, so the compound compression moulding of employing refractory material and waterglass (or phosphoric acid add hot water mix).This new casting method can directly cast out the baseplane degree and reach
0.3～0.6, fineness reaches
3, the inclination angle is the feed trumpet of 45 ° of steam vents.
This characteristic feature of an invention is only just can produce the feed trumpet product that satisfies instructions for use by casting, has saved the manufacturing procedure of baseplane and steam vent, and production cost reduces greatly.But weak point is arranged also.Be that this kind feed trumpet material is a grey cast-iron, in the adverse circumstances of high temperature, rapid heat cycle, mechanical collision, use for a long time that because shape is elongated, tensile strength is low, is easy to fracture damage.Therefore, influence service life greatly, caused unnecessary economic loss.For this reason, the inventor of this patented technology has carried out technological improvement again to above-mentioned casting technique, has adopted the new method of placing reinforcing bar in the feed trumpet tube wall.
The objective of the invention is to avoid the weak point in the above-mentioned patented technology, a kind of casting method of reinforcement feed trumpet is provided, promptly in the former tube wall of not processing feed trumpet, places reinforcing bar, to improve the mechanical performance of feed trumpet, increase the tensile strength of critical section, prolong the service life of feed trumpet.
The present invention is achieved in that promptly and does not process in the casting process of feed trumpet in casting, reinforcing bar with 3 above φ 8-20mm, be welded into uniform rotating cage type steel bar framework in two ends with retainer plate near reinforcing bar, vertically be welded with plurality of support columns on the reinforcing bar of the outside around its framework, supporting steel bar framework in the die cavity of sand mold, make after the cast reinforcing bar just in time the boundary in the feed trumpet tube wall and cast out reinforcement feed trumpet product.
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is a reinforcement feed trumpet process schematic representation.
Fig. 2 is a rotating cage type steel bar framework front view.
Fig. 3 is the vertical view of Fig. 2.
The drawing explanation:
1. reinforcement feed trumpet, 2. cope, 3. cap mouth, 4. baseplane case, 5. centre bore fuse, 6. feed trumpet baseplane, 7. steam vent fuse, 8. drag box, 9. sprue gate, 10. retainer plate, 14. times retainer plates on the support column, 13. in the outside around the feed trumpet reinforcement, 11. rotating cage type steel bar frameworks, 12. steel bar frameworks.
Three-cavity moulding divides cope 2, drag box 8 and baseplane case 4, cope 2 is casting feed trumpet entities 1 with drag box 8, centre bore fuse 5 is cast central hole, steam vent fuse 7, it is the casting steam vent, baseplane case 4 is to design for making high flatness feed trumpet baseplane 6 specially, the 3rd, the cap mouth, the 9th, the sprue gate, the 10th, the feed trumpet reinforcement, rotating cage type steel bar framework 11 is the reinforcing bar of 3 above φ 8-20mm to be used retainer plate 13 and following retainer plate 14 is welded, and vertically is welded with several on the reinforcing bar of the outside around its framework and supports villages 12, and aiming at spacer bar framework 11, to be positioned the feed trumpet tube wall interior and design.
The technical process of casting is: at first drag box 8 and baseplane case 4 are lumped together, and use the bolt screwed in place, then rotating cage type steel bar framework 11 is lowered in the type control, be supported on the drag box 8 by support column 12 perpendicular to steel bar framework, the length of support column preferably makes steel bar framework 11 and reinforcement feed trumpet 1 concentric, and makes reinforcing bar be positioned at feed trumpet tube wall centre position.After steam vent fuse 7 and central shaft angle at 45 put into die cavity, again centre bore fuse 5 is inserted centers in the rotating cage type steel bar frameworks 11, at last cope 2 and baseplane case 4 usefulness bolts are tightened mould assembling.One end at sand mold sprue gate 9 is made progress, and making the central shaft of ingot casting and the angle of ground level is 8 °～12 ° inclined castings.Can make the lower end densification of feed trumpet foundry goods like this, with the flatness of assurance feed trumpet baseplane 6 and the requirement of surface smoothness.
The casting method of this reinforcement feed trumpet, do not process original three main features of feed trumpet except that possessing, major advantage of the present invention is the mechanical performance that has improved feed trumpet, increased the tensile strength at critical section (as the steam vent place), reduced because of collision and produced fracture, thereby prolonged the actual life of feed trumpet greatly, created bigger economic benefit for using producer.
Claims (2)
1, the companion making method of the feed trumpet that uses in a kind of metallurgical industry, cast used sandbox behind preheating and drying, adopt the combination of three part box formula, inclined casting, wherein the baseplane case is to make major ingredient with refractory material, waterglass or phosphoric acid add hot water and are mixed into binding agent compression moulding, the fuse of feed trumpet steam vent is to make of irritating the tamping of coke powder in the steel pipe, the invention is characterized in: the reinforcing bar (10) of in the feed trumpet tube wall, placing 3 above Φ 8～20mm equably, two ends near reinforcing bar is fixing by last retainer plate (13) and following retainer plate (14) welding respectively, constitutes a rotating cage type steel bar framework (11).
2, casting method according to claim 1 is characterized in that said rotating cage type steel bar framework (11) vertically is welded with plurality of support columns (12) on the reinforcing bar of the outside on every side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92101001 CN1028726C (en) | 1992-02-17 | 1992-02-17 | Casting method of reinforced pouring pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92101001 CN1028726C (en) | 1992-02-17 | 1992-02-17 | Casting method of reinforced pouring pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1075439A CN1075439A (en) | 1993-08-25 |
| CN1028726C true CN1028726C (en) | 1995-06-07 |
Family
ID=4938918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92101001 Expired - Fee Related CN1028726C (en) | 1992-02-17 | 1992-02-17 | Casting method of reinforced pouring pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1028726C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424969B (en) * | 2011-11-30 | 2013-06-26 | 中联重科股份有限公司 | Equipment and method for manufacturing inner liner of thin-wall pipe fitting |
| CN104226909A (en) * | 2014-09-03 | 2014-12-24 | 鞍钢集团矿业公司 | Modeling core of connecting pin holes of front wall of bucket and bucket teeth and making and using methods |
| CN105499492B (en) * | 2015-12-15 | 2017-08-11 | 清华大学 | The non-new casting mold of compact structure |
| CN108296456A (en) * | 2018-03-08 | 2018-07-20 | 江苏飞鹿重工机械制造有限公司 | A kind of sandbox casting method and sandbox of casting |
| CN111715855B (en) * | 2020-04-30 | 2021-12-28 | 马鞍山市中桥金属材料有限公司 | Casting method for 1Cr17Ni2 or 5CrNiMoV steel ingot |
| CN112008057B (en) * | 2020-09-01 | 2021-03-30 | 上海润成机电科技有限公司 | Bimetal sliding bearing |
| CN114939639B (en) * | 2022-05-31 | 2024-02-09 | 上海五钢设备工程有限公司 | Casting device and casting method for middle pouring pipe |
-
1992
- 1992-02-17 CN CN 92101001 patent/CN1028726C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1075439A (en) | 1993-08-25 |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |