JPH0336203A - Manufacture of cylinder block having double structure - Google Patents
Manufacture of cylinder block having double structureInfo
- Publication number
- JPH0336203A JPH0336203A JP1167959A JP16795989A JPH0336203A JP H0336203 A JPH0336203 A JP H0336203A JP 1167959 A JP1167959 A JP 1167959A JP 16795989 A JP16795989 A JP 16795989A JP H0336203 A JPH0336203 A JP H0336203A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- cylinder block
- powder
- sintering
- ferrous
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 abstract description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 5
- 239000002994 raw material Substances 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 29
- 239000010949 copper Substances 0.000 description 25
- 239000010410 layer Substances 0.000 description 6
- 239000003350 kerosene Substances 0.000 description 5
- 239000011812 mixed powder Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 244000144992 flock Species 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910017755 Cu-Sn Inorganic materials 0.000 description 1
- 229910017927 Cu—Sn Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0469—Other heavy metals
- F05C2201/0475—Copper or alloys thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/12—Coating
Landscapes
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は抽圧ポンプやモータに使用されるシリンダブロ
ックの製造方法に係り、特に焼結材を用いた二重構造の
シリンダブロックの製造方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for manufacturing a cylinder block used in an extraction pump or a motor, and in particular a method for manufacturing a double-structured cylinder block using sintered material. Regarding.
（従来の技術〉
従来から抽圧ポンプやモータに使用されているシリンダ
ブロックは、軸心の周りに多数のシリンダを設け、その
シリンダ内にそれぞれビスＩ〜ンを嵌合して、これらビ
スｌ−ンの頭部を一個の斜板に取り付け、ピストンを往
復動させるようにＬ７たものである。(Prior art) Cylinder blocks conventionally used in extraction pumps and motors are provided with a large number of cylinders around the axis, and screws are fitted into each of the cylinders. - The head of the piston is attached to a single swash plate, and the piston is reciprocated by L7.
このような抽圧シリンダフロックにはつぎのような製造
方法かある。例え！よ、軽負荷のシリンダブロックでは
第５図に示すようにＡ（ＦＣ−３Ｃｕ−０，７Ｃ）、Ｂ
（Ｆｃ−１，５Ｃｕ−１，、ＯＣ）、Ｃ（Ｆｃ−１，
５Ｃｕ−１，ＱＣ）の三つの各材質の部品を組み合わせ
、焼結ど同時にＣｕを溶浸して内部の気孔を埋め接合を
行い、強度アップと摺動性を改善した素材を機械加工Ｌ
、複雑形状を作り出すものである。There are several manufacturing methods for such extraction cylinder flocks as follows. example! For a lightly loaded cylinder block, A (FC-3Cu-0,7C) and B are shown in Figure 5.
(Fc-1,5Cu-1,,OC), C(Fc-1,
5Cu-1, QC) are combined, sintered and at the same time infiltrated with Cu to fill the internal pores and bonded.The material is machined to increase strength and improve sliding properties.
, to create complex shapes.
これに対して一般のシリンダブロックでは低合金溶製材
を熱処理し、バルンプレー１−どなる球面部、および多
数のピストン穴部を加工して、その穴部に高力銅合金を
鋳造溶着、ろう付けにより一層とした素材を機械加工し
て複雑形状を作りだしている。On the other hand, in a general cylinder block, a low-alloy melted material is heat-treated, a spherical surface and a large number of piston holes are machined, and a high-strength copper alloy is cast, welded, and brazed into the holes. Complex shapes are created by machining a single layer of material.
（発明が解決しようとする課題）
しかしながら一般のシリンダブロックでは、溶製材から
全加工、しかも高精度加工であるため加工費が高く、焼
結晶にＣｕ溶浸したものは強度と耐焼付性、および耐摩
耗性に問題があった。(Problems to be Solved by the Invention) However, in general cylinder blocks, the entire process is made from ingot material and high precision processing is required, so the processing cost is high. There was a problem with wear resistance.
また摺動部に形成するＣｕ系層を焼結により製作しよう
とすると、焼結時にＣｕ系圧粉体収縮量が大きいために
剥離が起こり、Ｃｕ系焼結層をビスｌ〜ン穴内側に作っ
て耐摩耗性と耐焼付性を付与することができなかった。Furthermore, when attempting to manufacture the Cu-based layer to be formed on the sliding part by sintering, peeling occurs due to the large amount of contraction of the Cu-based green compact during sintering, and the Cu-based sintered layer is placed inside the screw hole. However, it was not possible to create and impart wear resistance and seizure resistance.
本発明はこれに鑑み油潤滑下での高速摺動において著し
い耐摩耗性と耐焼付性が要求されるシリンダブロックを
焼結技術を用いて低コストに製造することのできる焼結
による二重構造のシリンダブロックの製造方法を提供す
ることを目的としてなされたものである。In view of this, the present invention has developed a double structure using sintering technology that allows cylinder blocks to be manufactured at low cost using sintering technology, which requires remarkable wear resistance and seizure resistance during high-speed sliding under oil lubrication. The purpose of this invention is to provide a method for manufacturing a cylinder block.
（課題を解決するための手段）
上記目的を達成するため本発明１はＦｅ系素材からなる
シリンダブロック本体の軸心の周りに設けた複数個のピ
ストン穴に、摺動性を有するＣｕ系圧粉体円筒を挿入し
、該円筒内に膨張性のＦｅ系およびＣｕ系円形体を挿入
して、焼結時に該圧粉体円筒を該シリンタブロック本体
に接合すると共に、圧粉体円筒内の該Ｆｅ系円形体を加
工ｊ７て除去することを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention 1 provides a sliding Cu-based pressure in a plurality of piston holes provided around the axis of a cylinder block body made of an Fe-based material. A powder cylinder is inserted, an expandable Fe-based and Cu-based circular body is inserted into the cylinder, and the green powder cylinder is joined to the cylinder block body during sintering, and the inside of the green powder cylinder is The feature is that the Fe-based circular body is removed by processing j7.
（実施例）
以下、本発明を第１図乃至第４図に示す実施例を参照し
て説明する。(Example) The present invention will be described below with reference to the example shown in FIGS. 1 to 4.
本発明にかかる二重構造のシリンダブロックの製造方法
は、Ｆｅ系素材からなるシリンダブロック本体１の軸心
２の周りに設けた複数個のビスｌヘン穴３に、摺動性を
有するＣｕ系圧粉体円筒４を挿入ｌ２、該円筒４内には
膨張性のＦｅ系およびＣＵ系圧粉体円形体（円柱５１円
筒６、または鋼管）を挿入して、焼結時に該圧粉体円筒
４を該シリンダブロック本体１に接合するど共に、圧粉
体円筒４内の該Ｆｅ系円形体を加工して除去し製作する
方法である。The method for manufacturing a double-structured cylinder block according to the present invention involves inserting a sliding Cu-based cylinder block into a plurality of screw holes 3 provided around the axis 2 of a cylinder block body 1 made of an Fe-based material. A powder compact cylinder 4 is inserted l2, an expandable Fe-based and CU-based powder compact circular body (column 51 cylinder 6, or steel pipe) is inserted into the cylinder 4, and the compact powder cylinder is heated during sintering. 4 to the cylinder block body 1, and at the same time, the Fe-based circular body inside the powder compact cylinder 4 is processed and removed.
そして焼結時にＣｕ系層とＦｅ素材の接合を確保するた
めに、Ｃｕ系圧粉体円筒の内側に膨張性の成分調整され
たＦｅ系およびＣｕ系圧粉体円柱または円筒、あるいは
鋼管を挿入して、焼結時の膨張によりＣｕ系層表面とＦ
ｅ系素材表面の接触圧を増大させ、相互管の焼結・拡散
を図るようにしたものである。Then, in order to ensure the bonding between the Cu-based layer and the Fe material during sintering, a Fe-based and Cu-based compacted powder cylinder or cylinder, or a steel pipe whose expansivity has been adjusted, is inserted inside the Cu-based compacted powder cylinder. Then, due to expansion during sintering, the Cu-based layer surface and F
The contact pressure on the surface of the e-based material is increased to promote sintering and diffusion of mutual tubes.
なお、Ｃｕ系、Ｆｅ系圧粉体が縦長で充分な成形密度を
得ることができないと、充分な接触圧が得られないので
、Ｃｕ系圧粉体円筒、Ｆｅ系およびＣｕ系圧粉体円柱ま
たは円筒は分割して製作し、成形密度を上げるようにし
た方がよい。Note that if the Cu-based and Fe-based green compacts are vertically long and sufficient compaction density cannot be obtained, sufficient contact pressure cannot be obtained. Alternatively, it is better to manufacture the cylinder in parts to increase the molding density.
つぎに２つの実施例について説明する。Next, two embodiments will be described.
［実施例１］：バックアツプ材がＦｅ系の場合シリンダ
ブロック本体１のＦｅ系素材は１００メツシユ以下のＣ
ｒ−Ｍｏ系低合金鋼粉（ＫＩＰ４１００Ｖ川鉄）、黒鉛
ＫＳ−６（ロンザ製〉をＦｅ−０，８Ｍｎ−ｌＣｒ−０
，３Ｍｏ−０，６Ｃとした混合粉に０．０５ｗｔ％のケ
ロシンを添加して充分均一に混合し、成形圧４．５ｔｏ
ｎ／ｃｎｒでＣＩＰ戒形底形２５０°ＣＸ １１−１真
空焼結後、Ｎ２ガスで急冷し、ピストン穴３は直径１９
”口０５深さ６０ ｍ、 ｒｎに加工した。[Example 1]: When the back-up material is Fe-based, the Fe-based material of the cylinder block body 1 has a C of 100 mesh or less.
Fe-0,8Mn-lCr-0 r-Mo based low alloy steel powder (KIP4100V Kawatetsu) and graphite KS-6 (manufactured by Lonza)
, 3Mo-0,6C, 0.05 wt% kerosene was added to the mixed powder, mixed thoroughly and uniformly, and the molding pressure was 4.5 to
After vacuum sintering, the piston hole 3 has a diameter of 19
Processed to ``mouth 05 depth 60 m, rn.
ピストン穴３の内面層となるＣ ｕ −Ｓ ｎ青銅系焼
結材は、２００メツシユ以下のＳ ｎ粉１ ］、 ｗ
ｔ％、Ｐが０．８ｗヒ％となるように２５０メツシツ以
下の燐鉄粉（Ｆｅ−２７ｗＩ、％ｐ＞、２０゜メツシュ
以下のｐｂ粉３ ｗ ｔ％、残りが２００メツシユ以下
の電解銅粉からなる混合粉に０．０５ｗｔ％のケロシン
を添加して充分均一に混合した。The Cu-Sn bronze sintered material that becomes the inner surface layer of the piston hole 3 is Sn powder 1 of 200 mesh or less], w
Phosphorous iron powder (Fe-27wI, %p>, 3 wt% of PB powder with a mesh size of 20 degrees or less, the remainder being electrolytic copper of less than 200 meshes so that P is 0.8w%) 0.05 wt % of kerosene was added to the mixed powder consisting of powder and mixed thoroughly and uniformly.
また、バックアツプ材となるＦｅ系焼結材は６０メツシ
ユ以下の鉄粉（ＫＩＰ３０Ａ−６０川鉄）、黒鉛ＫＳ−
６（ｏンザ製）、２５ｏメツシユ以下の燐鉄粉（Ｆ ｅ
−’２７ ｗ シ％Ｐ）、２５０メツシユ以下のＦ
ｅ −Ｂ （２］、 Ｗ ｔ％Ｂ〉をＦｅＩＣ−０，３
Ｐ−０，１５Ｂどした混合粉に０゜０５ ｗ ｔ％のケ
ロシンを添加して充分均一に混合した。In addition, the Fe-based sintered materials used as back-up materials include iron powder of 60 mesh or less (KIP30A-60 River Iron), graphite KS-
6 (manufactured by Onza), phosphorous iron powder (F e
-'27w%P), F less than 250 meshes
e −B (2), W t%B〉 as FeIC-0,3
0.05 wt % of kerosene was added to the P-0, 15B mixed powder and mixed thoroughly and uniformly.
Ｃｕ系圧粉体円筒４は外径ｌ ９−０．１０ ＝内径］
３＋：０５高さ２０ｍｍのものを成形圧２ｔｏｎ／ｃ／
でプレス底形し、Ｆｅ系圧粉体円柱５は外径１３−８！
、高さ２０ ｒｎ ｍのものを成形圧５Ｌｏｎ／ｃｍ’
てプレス底形し、Ｆｅ系素材のシリンダブロック本体１
の穴３に各々３ケずつ入れ、ＡＸカス雰囲気中で９００
°Ｃ×４５分の焼結を行っノこ。焼結後の界面組織を第
３図に示す。The Cu-based green compact cylinder 4 has an outer diameter l9-0.10 = inner diameter]
3+:05 Molding pressure of 20mm height 2ton/c/
The bottom of the press is shaped, and the Fe-based compact cylinder 5 has an outer diameter of 13-8!
, a molding pressure of 5Lon/cm' with a height of 20 rn m
The cylinder block body 1 is made of Fe-based material.
Insert 3 pieces into each hole 3 and heat at 900°C in an AX atmosphere
Perform sintering for 45 minutes at °C. Figure 3 shows the interfacial structure after sintering.
また、５００ Ｌｌ連続運転デスｌ−したところ、表１
に示すように優れた摺動性、耐摩耗性を示した。In addition, after 500 Ll continuous operation, Table 1
As shown in Figure 2, it exhibited excellent sliding properties and wear resistance.
表 １
実体ポンプ５００Ｉ■連続運１販デスト結果（曲屈３８
０ ｋｇ／ ｃｍ’ ） 単位ｍｒｎこの場合、耐久
テストパターンは圧力Ｐ（ｋｇ／ｃｍ”）、回転数Ｎ
（ｒ ｐ ｒｎ ） 、容量ｑ（ｃｃ／ｒｅ■）１泊温
”「＜ °ｃ ＞を変え、つぎの４種のテストを合計５
００１−１行った。但し斜板角２０° （最大）そのテ
スト結果を第４図に示す。Table 1 Real pump 500I ■ Consecutive luck 1 sale death result (bending 38
0 kg/cm') Unit mrn In this case, the durability test pattern is pressure P (kg/cm'), rotation speed N
(r p rn ), capacity q (cc/re), overnight temperature "< °c >, and the following four tests were conducted for a total of 5 times.
001-1 went. However, the swash plate angle is 20° (maximum). The test results are shown in Figure 4.
「実施例２］：バックアツプ材がＣｕ系の場合シリンダ
フロック本体１のＦｅ系素材は実施例１と同様に製造し
た。"Example 2": When the back-up material is Cu-based The Fe-based material of the cylinder flock body 1 was manufactured in the same manner as in Example 1.
そしてビス１〜ン穴３の内面層となるＣｕ−８ｎ青銅系
焼結材は２００メツシユ以下のＳ ｎ粉１ｗし％、Ｐが
０．８ｗｔ％となるように２５０メツシユ以下の燐鉄粉
（Ｆｅ−２７ｗｔ％Ｐ）、２００メッシコ、以下のｐｂ
粉３ ｗ ｔ％、残りが２００メツシユ以下の電解銅粉
からなる混合粉に０．０５ ｗ ｔ％のケロシンを添加
し、充分均一に混合した。また、バックアツプ材どなる
Ｃｕ系焼結材は、２００メツシユ以下のＳ ｎ粉１２ｗ
し％、残りが２００メツシユ以下の電Ｍ’ｆ銅粉からな
る混合粉に０．０５ｗｔ％のケ１コシンを添加し、充分
Ｊ句−に混合した。The Cu-8n bronze sintered material that becomes the inner layer of screws 1 to holes 3 contains 1w% of Sn powder of 200 mesh or less, and phosphorous iron powder of 250 mesh or less so that P is 0.8wt%. Fe-27wt%P), 200 meshco, pb below
0.05 wt % of kerosene was added to a mixed powder consisting of 3 wt % powder and the remaining 200 mesh or less of electrolytic copper powder, and the mixture was thoroughly and uniformly mixed. In addition, the Cu-based sintered material used as back-up material is Sn powder 12w with a mesh size of 200 or less.
0.05 wt % of kerosene was added to a mixed powder consisting of electric M'f copper powder with a balance of 200 mesh or less, and the mixture was thoroughly mixed.
Ｃｕ系圧粉体円筒４は外径１９−０．１［］、内径１３
＋ｏ、 ｏｓ、高さ２０ ｒｎ ｒｎのものを成形２
１．ｏｎ／ｃｍ”でプレス成形し、Ｃｕ系圧粉体円柱５
は外径１３−００、高さ２０ｍｍのものを成形圧４Ｌｏ
ｎ／ｃｍで底形し、Ｆｅ系素材のピストン穴３に各３ケ
ずつ入れ、ＡＸガス雰囲気中で９００°ＣＸ ／１．５
分の焼結を行ったところ、実施例１と同様の界面組織を
示した。The Cu-based compacted powder cylinder 4 has an outer diameter of 19-0.1[] and an inner diameter of 13
+ o, os, height 20 rn rn molded 2
1. on/cm" to form a Cu-based green compact cylinder 5.
The molding pressure is 4Lo for an outer diameter of 13-00 and a height of 20mm.
n/cm, put 3 pieces each into the piston holes 3 made of Fe-based material, and heated them at 900°CX/1.5 in an AX gas atmosphere.
When sintering was performed for 10 minutes, the same interface structure as in Example 1 was obtained.
なお、前記シリンダブロック１のピストン穴３の素材は
、Ｆ ｅ系圧粉体、焼結体の何れてあってもよい。The material of the piston hole 3 of the cylinder block 1 may be either Fe-based green compact or sintered material.
（発明の効果）
本発明は以上説明したように、Ｆｅ系素材からなるシリ
ンダブロック本体の軸心の周りに設けた複数個のピスト
ン穴に、摺動性を有するＣｕ系圧粉体円筒を挿入＋、、
該円筒内に膨張性のＦｅ系およびＣｕ系円形体を挿入し
て、焼結時に該圧粉体円筒を該シリンタブロック本体に
接合すると共に、圧粉体円筒内の該Ｆｅ系円形体を加ニ
１シて除去するようにｊ−たから、従来のようにピスト
ン穴部の摺動部に形成するＣｕ系層を焼結により製作し
ようとすると、焼結時にＣｕ系圧粉体の収縮量が大きい
ために起こる剥離により、耐摩耗性や耐焼付性を付与で
きなかったが、本発明によればこうした欠点は全て解消
され、しかも低コストで製造することかできる。(Effects of the Invention) As explained above, the present invention has a sliding Cu-based powder cylinder inserted into a plurality of piston holes provided around the axis of a cylinder block body made of an Fe-based material. +,,
An expandable Fe-based and Cu-based circular body is inserted into the cylinder, and during sintering, the compacted powder cylinder is joined to the cylinder block body, and the Fe-based circular body inside the compacted powder cylinder is Since the Cu-based layer formed on the sliding part of the piston hole is manufactured by sintering as in the conventional method, the amount of shrinkage of the Cu-based green compact during sintering will increase. However, the present invention eliminates all of these drawbacks and can be manufactured at low cost.
第１図は本発明にかかる二重構造のシリンダブ０ツクの
製造方法により製造ｌ−た完成品の断面図を示し、第２
図は第１図の製造過程を示す一実施例を示し、（ａ）は
Ｃｕ系圧粉体円筒に円柱のＦｅ系圧粉体をｔｉｐ人した
状態の断面図、（ｂ ）は同じく円筒のＦｅ系圧粉体を
４１人した状態の断面図、第３図は金属組織を示す図面
に代わる写真、第４図は耐久テスｌ〜パターンによるベ
ンチテストの結果を示すグラフ、第５図は従来の軽負荷
シリンタブロックの製造過程を示す断面図である。
１・・・シリンダブロック本体、２・・・軸心、３・・
ピストン穴、４・・・Ｃｕ系圧粉体円筒、５・・・Ｆｅ
系またはＣｕ系円柱、６・・・同円筒。FIG. 1 shows a cross-sectional view of a finished product manufactured by the double-structured cylinder block manufacturing method according to the present invention;
The figure shows an example of the manufacturing process shown in Fig. 1, in which (a) is a cross-sectional view of a cylindrical Fe-based powder compact inserted into a Cu-based powder compact cylinder, and (b) is a sectional view of the same cylindrical compact. A cross-sectional view of the Fe-based powder compact with 41 people applied to it, Figure 3 is a photograph that replaces the drawing showing the metallographic structure, Figure 4 is a graph showing the results of the bench test using the durability test 1 pattern, and Figure 5 is the conventional FIG. 3 is a cross-sectional view showing the manufacturing process of a light-load cylinder block. 1... Cylinder block body, 2... Shaft center, 3...
Piston hole, 4...Cu-based compacted powder cylinder, 5...Fe
type or Cu type cylinder, 6... the same cylinder.
Claims (1)
に設けた複数個のピストン穴に、摺動性を有するＣｕ系
圧粉体円筒を挿入し、該円筒内に膨張性のＦｅ系および
Ｃｕ系円形体を挿入して、焼結時に該圧粉体円筒を該シ
リンダブロック本体に接合すると共に、圧粉体円筒内の
該Ｆｅ系円形体を加工して除去することを特徴とする二
重構造のシリンダブロックの製造方法。A sliding Cu-based powder cylinder is inserted into a plurality of piston holes provided around the axis of a cylinder block body made of Fe-based material, and expandable Fe-based and Cu-based powder cylinders are inserted into the cylinder. A double structure characterized in that a circular body is inserted and the compacted powder cylinder is joined to the cylinder block main body during sintering, and the Fe-based circular body inside the compacted powder cylinder is processed and removed. manufacturing method for cylinder blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1167959A JPH0336203A (en) | 1989-06-29 | 1989-06-29 | Manufacture of cylinder block having double structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1167959A JPH0336203A (en) | 1989-06-29 | 1989-06-29 | Manufacture of cylinder block having double structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0336203A true JPH0336203A (en) | 1991-02-15 |
Family
ID=15859215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1167959A Pending JPH0336203A (en) | 1989-06-29 | 1989-06-29 | Manufacture of cylinder block having double structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0336203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5948549A (en) * | 1995-04-19 | 1999-09-07 | Komatsu Ltd. | Sinter joining method and sintered composite member produced by same |
-
1989
- 1989-06-29 JP JP1167959A patent/JPH0336203A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5948549A (en) * | 1995-04-19 | 1999-09-07 | Komatsu Ltd. | Sinter joining method and sintered composite member produced by same |
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