JPH0235629B2 - - Google Patents
Info
- Publication number
- JPH0235629B2 JPH0235629B2 JP59114499A JP11449984A JPH0235629B2 JP H0235629 B2 JPH0235629 B2 JP H0235629B2 JP 59114499 A JP59114499 A JP 59114499A JP 11449984 A JP11449984 A JP 11449984A JP H0235629 B2 JPH0235629 B2 JP H0235629B2
- Authority
- JP
- Japan
- Prior art keywords
- inner cylinder
- cylinder
- outer cylinder
- mold
- casting
- 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 - Lifetime
Links
- 238000009750 centrifugal casting Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 238000003754 machining Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、内筒と外筒とを互いに密接させて成
る複合管として構成されたマツドポンプライナの
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a mat pump liner configured as a composite pipe in which an inner cylinder and an outer cylinder are brought into close contact with each other.
従来の技術
石油掘削に際してビツトの先端の冷却、潤滑と
相俟つて掘屑を地上又は海上に搬出するため、地
上又は海上より掘管を経てビツトノズルより坑底
に吐出させ、掘管外側坑内を上昇させる泥水を循
環させるマツドポンプとしてはピストンポンプが
使用されるが、ポンプライナには高い内圧が掛
り、又取扱う流体が砂の混つたマツドであるとこ
ろから、マツドポンプライナは第３図に示す如
く、高クロム鋳鉄等の耐摩耗性の優れた材質で作
られた内筒１と、普通鋳鋼や鍛鋼の如き靭性の高
い材料で作られた外筒２とを互いに密接させて成
る複合管が使用されている。Conventional technology During oil drilling, in order to cool and lubricate the tip of the bit and transport it to the ground or sea, the bit is discharged from the ground or sea through a drilling pipe to the bottom of the pit from a bit nozzle, and then ascends inside the mine outside the drilling pipe. A piston pump is used as a mud pump to circulate muddy water, but since the pump liner is subject to high internal pressure and the fluid handled is mud mixed with sand, the mud pump liner is used as shown in Figure 3. A composite pipe is used in which an inner tube 1 made of a material with excellent wear resistance such as high chromium cast iron and an outer tube 2 made of a highly tough material such as ordinary cast steel or forged steel are brought into close contact with each other. ing.
上記の複合管構造のマツドポンプライナは従
来、焼ばめ法又は二重遠心鋳造法により製造され
ていた。 The above-described composite pipe structure matudo pump liner has conventionally been manufactured by a shrink fit method or a double centrifugal casting method.
焼ばめ法は、内筒を遠心鋳造で作り、外筒を炭
素鋼鍛造品あるいは鋼管で作り、両者を所要の精
度の寸法に加工して焼ばめにより一体化して製造
するものであるが、寸法精度が厳しく、加工々数
が多く掛り、加工費が大きな割合を占める欠点が
ある。 In the shrink fit method, the inner cylinder is made by centrifugal casting, the outer cylinder is made of carbon steel forging or steel pipe, and both are machined to the required precision dimensions and integrated by shrink fit. However, it has the drawbacks of strict dimensional accuracy, a large number of machining operations, and a large proportion of machining costs.
二重遠心鋳造法は、外筒となる普通鋳鋼を遠心
鋳造により先に鋳込み、未だ凝固しないうちに、
内筒となる高クロム鋳鉄を遠心鋳造により鋳込み
一体の複合管とするものであるが、外筒の熱によ
り内筒の凝固冷却が遅れ、組織が粗大化し、その
結果耐摩耗性が低下する欠点がある。 In the double centrifugal casting method, the ordinary cast steel that becomes the outer cylinder is first cast by centrifugal casting, and before it solidifies,
The high chromium cast iron that forms the inner cylinder is centrifugally cast to form an integrated composite pipe, but the heat of the outer cylinder delays the solidification and cooling of the inner cylinder, coarsening the structure and reducing wear resistance. There is.
発明が解決しようとする問題点
本発明は、焼ばめ法及び二重遠心鋳造法による
マツドポンプライナの上記の問題を解決した、加
工々数が少なくて済み、しかも内筒の耐摩耗性の
低下がないマツドポンプライナの製造方法を提供
することを目的とする。Problems to be Solved by the Invention The present invention solves the above-mentioned problems of matsudo pump liners by shrink fitting and double centrifugal casting, requires fewer machining operations, and improves the wear resistance of the inner cylinder. It is an object of the present invention to provide a method for manufacturing a mat pump liner that does not cause deterioration.
問題点を解決するための手段
上記の問題を解決する本発明によるマツドポン
プライナの製造方法は、内筒を遠心鋳造で作り、
適温に加熱した後、外筒鋳型内に設置し、この鋳
型の内面と前記内筒の外面との間に内筒が400゜乃
至600゜の時点で普通鋼あるいは低合金鋼を鋳込ん
で内筒を鋳ぐるみ一体化することを特徴とする。Means for Solving the Problems The manufacturing method of the mated pump liner according to the present invention which solves the above problems includes making the inner cylinder by centrifugal casting,
After heating to an appropriate temperature, the outer cylinder is placed in a mold, and when the inner cylinder is at an angle of 400° to 600° between the inner surface of this mold and the outer surface of the inner cylinder, ordinary steel or low alloy steel is poured into the inner cylinder. The feature is that the cylinder is integrated into the casting.
実施例
第１図は、本発明によるマツドポンプライナの
製造方法の一実施例を工程順に示す図である。Embodiment FIG. 1 is a diagram showing, in order of steps, an embodiment of a method for manufacturing a mat pump liner according to the present invention.
(a) 遠心鋳造法により、高クロム鋳鉄で内筒１を
作る。外側面は荒仕上げ、又は鋳放しシヨツト
ブラストとする。(a) Make the inner cylinder 1 from high chromium cast iron using the centrifugal casting method. The external surface shall be rough finished or shot blasted as cast.
(b) 上記の内筒１を適温に加熱した後、外筒鋳型
１０内に設置し、内筒外面と鋳型の内面との間
に内筒が400゜乃至600℃の時点で炭素鋼あるい
低合金鋼の溶湯を注湯し、外筒２を鋳造する。(b) After heating the above-mentioned inner cylinder 1 to an appropriate temperature, place it in the outer cylinder mold 10, and when the inner cylinder is between 400°C and 600°C, carbon steel or Molten metal of low alloy steel is poured and the outer cylinder 2 is cast.
(c) 鋳型より鋳造物を取出す。内筒１は外筒２に
鋳ぐるまれた状態になつている。(c) Remove the casting from the mold. The inner cylinder 1 is cast into the outer cylinder 2.
(d) 湯道を除去し、内筒１の内面、外筒２の外面
及び両端面を所定の寸法に仕上げる。なお、必
要により、所要の強度を得るために、熱処理を
施す。(d) Remove the runner and finish the inner surface of the inner tube 1, the outer surface and both end surfaces of the outer tube 2 to the specified dimensions. Note that, if necessary, heat treatment is performed to obtain the required strength.
第２図に内筒１を設置した外筒鋳型１０の一例
の断面図を示す。主型７は鋳枠１１と外筒用円筒
により造型し、別の鋳枠１２，１３で下型８、上
型９を造型する。 FIG. 2 shows a sectional view of an example of the outer cylinder mold 10 in which the inner cylinder 1 is installed. The main mold 7 is molded using a flask 11 and a cylinder for an outer cylinder, and the lower mold 8 and the upper mold 9 are molded using other flasks 12 and 13.
内筒１は設置に先立ち、内部に吊具３を入れ、
下部約50mmをマグネシア４で固定する。その上に
内筒１の上端面迄荒砂５を充填し、加熱炉に入
れ、700℃乃至900℃に約１時間加熱し、加熱炉か
ら取出し、下型８上にセツトした主型７中に納
め、中子６を載せ、上型９をかぶせ、内筒が400゜
乃至600℃の時点で、湯道より、炭素鋼あるいは
低合金鋼溶湯を注湯して所定の時間鋳込む。 Before installing the inner cylinder 1, put the hanging tool 3 inside,
Fix the bottom about 50mm with magnesia 4. On top of it, rough sand 5 was filled up to the upper end surface of the inner cylinder 1, placed in a heating furnace, heated to 700°C to 900°C for about 1 hour, taken out from the heating furnace, and placed in the main mold 7 set on the lower mold 8. Place the core 6, cover with the upper mold 9, and when the temperature of the inner cylinder is 400° to 600°C, pour carbon steel or low alloy steel molten metal through the runner and cast for a predetermined time.
上記の本発明の製造方法では、外筒２の鋳造
時、内筒１は既に凝固しているので、外筒の溶湯
に接触して加熱されても組織が粗大化することは
なく、したがつて耐摩耗性が低下することはな
い。又、内筒１は外筒２によつて鋳ぐるむことに
より内筒の外面と外筒の内面とを密着させるの
で、焼ばめ法の場合のような厳しい寸法精度は要
求されず、鋳放しでもよく、加工々数を著しく低
減させることができる。 In the manufacturing method of the present invention described above, since the inner cylinder 1 is already solidified when the outer cylinder 2 is cast, the structure does not become coarse even when it comes into contact with the molten metal of the outer cylinder and is heated. There is no decrease in wear resistance. In addition, since the inner cylinder 1 is cast around the outer cylinder 2, the outer surface of the inner cylinder and the inner surface of the outer cylinder are brought into close contact, so strict dimensional accuracy is not required as in the case of the shrink fit method, and casting is possible. It is also possible to release it, and the number of machining operations can be significantly reduced.
しかも、外筒の凝固による収縮により、内筒１
は外筒２によつて緊締され、ポンプに装着して使
用中に内筒が外筒から抜けることが防止される。
又、内筒は外筒によつて直径が収縮する方向の応
力が与えられているので、ポンプの運転により内
圧が掛つた場合は、内圧による直径を拡大する方
向の応力と相殺して、応力が減少することにな
り、強度的にも有利である。 Moreover, due to the shrinkage of the outer cylinder due to solidification, the inner cylinder 1
is tightened by the outer cylinder 2 to prevent the inner cylinder from coming off from the outer cylinder during use when attached to the pump.
Also, since the inner cylinder is given stress in the direction of shrinking its diameter by the outer cylinder, when internal pressure is applied due to pump operation, the stress is reduced by offsetting the stress in the direction of expanding the diameter due to the internal pressure. This results in a decrease in strength, which is advantageous in terms of strength.
効 果
以上の如く、本発明によれば、複合管として構
成されるマツドポンプライナを加工々数を大幅に
減少して耐摩耗性の低下を招くことなく製造する
ことができ、コストダウンと耐用期間の増加、信
頼性の向上に顕著な効果が得られる。Effects As described above, according to the present invention, a mat pump liner configured as a composite pipe can be manufactured by significantly reducing the number of machining operations and without causing a decrease in wear resistance, resulting in cost reduction and durability. Significant effects can be obtained in increasing the period and improving reliability.
第１図は本発明のマツドポンプ製造方法の一実
施例を工程順に説明する図式図、第２図はその方
法における外筒鋳造鋳型の一例を示す断面図、第
３図はマツドポンプライナの一般的な構成を示す
断面図である。
１……内筒、２……外筒、７，８，９……鋳
型。
Fig. 1 is a schematic diagram explaining one embodiment of the matudo pump manufacturing method of the present invention in the order of steps, Fig. 2 is a sectional view showing an example of an outer cylinder casting mold in the method, and Fig. 3 is a general diagram of a matudo pump liner. FIG. 1... Inner cylinder, 2... Outer cylinder, 7, 8, 9... Mold.
Claims (1)
は低合金鋼で形成された外筒とより成り、前者の
外面と後者の内面とを互いに密接させて複合管と
して構成されたマツドポンプライナの製造方法に
おいて、内筒を遠心鋳造法により鋳造し、700℃
乃至900℃に約１時間加熱した後、外筒鋳型内に
設置し、該鋳型の内面と前記内筒の外面との間に
外筒を形成する金属材料を内筒が400℃乃至600℃
の温度の時点で鋳込んで、内筒を鋳ぐるみ一体化
することを特徴とするマツドポンプライナの製造
方法。1. A matsudo pump liner consisting of an inner cylinder made of high chromium cast iron and an outer cylinder made of carbon steel or low alloy steel, and configured as a composite pipe by bringing the outer surface of the former and the inner surface of the latter into close contact with each other. In the production method, the inner cylinder is cast by centrifugal casting, and
After heating at a temperature of 400°C to 900°C for about 1 hour, the metal material to form an outer cylinder between the inner surface of the mold and the outer surface of the inner cylinder is heated to a temperature of 400°C to 600°C.
A method for producing a mat pump liner, characterized in that the inner cylinder is integrated with the casting by casting at a temperature of .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59114499A JPS60257963A (en) | 1984-06-06 | 1984-06-06 | Production of mud pump liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59114499A JPS60257963A (en) | 1984-06-06 | 1984-06-06 | Production of mud pump liner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60257963A JPS60257963A (en) | 1985-12-19 |
| JPH0235629B2 true JPH0235629B2 (en) | 1990-08-13 |
Family
ID=14639281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59114499A Granted JPS60257963A (en) | 1984-06-06 | 1984-06-06 | Production of mud pump liner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60257963A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004092528A (en) * | 2002-08-30 | 2004-03-25 | Kurimoto Ltd | Method for manufacturing slurry pumping pump and slurry pumping cylinder |
| GB2441913B (en) * | 2005-07-14 | 2008-07-09 | Weatherford Lamb | Methods for producing even wall down-hole power sections |
| US20090095436A1 (en) * | 2007-10-11 | 2009-04-16 | Jean-Louis Pessin | Composite Casting Method of Wear-Resistant Abrasive Fluid Handling Components |
| FR2975527B1 (en) | 2011-05-18 | 2013-07-05 | Commissariat Energie Atomique | DEVICE FOR ELECTRICALLY HEATING A LIQUID, ITS PRODUCTION METHOD AND APPLICATION TO THE ELECTRICAL SIMULATION OF NUCLEAR FUEL PENCILS |
| CN103822029B (en) * | 2014-01-24 | 2015-11-25 | 姜考成 | A kind of sludge drainage pipe for dredging works and production method |
| CN104500387B (en) * | 2015-01-05 | 2016-08-10 | 贵州鼎成熔鑫科技有限公司 | A kind of plunger pump cylinder body structure for complex copper alloy and complex method thereof |
| CN104819169A (en) * | 2015-05-13 | 2015-08-05 | 湘潭市长河机电科技有限公司 | Novel water pump protective jacket and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927431A (en) * | 1972-07-07 | 1974-03-11 | ||
| JPS5758970A (en) * | 1980-09-24 | 1982-04-09 | Mitsubishi Heavy Ind Ltd | Production of abrasion resistant double rolls |
-
1984
- 1984-06-06 JP JP59114499A patent/JPS60257963A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927431A (en) * | 1972-07-07 | 1974-03-11 | ||
| JPS5758970A (en) * | 1980-09-24 | 1982-04-09 | Mitsubishi Heavy Ind Ltd | Production of abrasion resistant double rolls |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60257963A (en) | 1985-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5365997A (en) | Method for preparing an engine block casting having cylinder bore liners | |
| US8820389B1 (en) | Composite core for the casting of engine head decks | |
| US4757857A (en) | Mold for casting cylinder blocks of combustion engines | |
| US4903652A (en) | Cylinder liner insert and method of making engine block therewith | |
| US3439586A (en) | Iron cylinder liners | |
| US7921901B2 (en) | Sacrificial sleeves for die casting aluminum alloys | |
| JPH0235629B2 (en) | ||
| US6363995B1 (en) | Device and method for manufacturing an engine block | |
| US3305918A (en) | Method of producing composite castforged aluminum piston with bonded ferrous ring carrier | |
| US5238216A (en) | Apparatus for modifying thermal gradient for casting in graphite molds | |
| US7293598B2 (en) | Cylinder liner improvements | |
| JPH0128667B2 (en) | ||
| US3490135A (en) | Method of centrifugally casting tubular bodies | |
| US1683475A (en) | littell | |
| US6964292B2 (en) | Process of fabricating castings provided with inserts, with improved component/inset mechanical cohesion, and an insert usable in the process | |
| SE506408C2 (en) | Process and mold for the manufacture of cylinder liners of cast iron | |
| JPH0420697B2 (en) | ||
| US2737427A (en) | Trunk piston | |
| Green-Spikesley | Investment casting | |
| JPS59199160A (en) | Production of cylinder liner | |
| JPS62161453A (en) | Production of closed deck type cylinder block with wet liner | |
| GB912256A (en) | Improvements in or relating to the manufacture of pistons | |
| JPS60247455A (en) | Production of cylinder liner constructed of three layers | |
| EP0075052B1 (en) | Pistons | |
| SU1296283A1 (en) | Machine for producing hollow ingots |