JPH0445263B2 - - Google Patents
Info
- Publication number
- JPH0445263B2 JPH0445263B2 JP57104881A JP10488182A JPH0445263B2 JP H0445263 B2 JPH0445263 B2 JP H0445263B2 JP 57104881 A JP57104881 A JP 57104881A JP 10488182 A JP10488182 A JP 10488182A JP H0445263 B2 JPH0445263 B2 JP H0445263B2
- Authority
- JP
- Japan
- Prior art keywords
- sliding
- mold
- sic layer
- layer
- cvd
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- 238000005229 chemical vapour deposition Methods 0.000 claims description 13
- 238000005266 casting Methods 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000007770 graphite material Substances 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 40
- 239000000919 ceramic Substances 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 8
- 229910001018 Cast iron Inorganic materials 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 239000011651 chromium Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- -1 ZrO 2 and Cr 2 O 3 Chemical class 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Mold Materials And Core Materials (AREA)
- Chemical Vapour Deposition (AREA)
Description
この発明は耐摩耗性金属摺動部品とその鋳造方
法に係り、更に詳しく言えば粒界にガラス質相が
存在しない緻密なSiC層を摺動面に有する金属摺
動部品とその鋳造方法に係る。
例えば内燃機関用シリンダライナ等の摺動部品
の耐摩耗性を改善する目的で摺動面にクロムめつ
きや耐摩耗性溶射処理等を施すことが屡々行なわ
れている。しかしながら近時内燃機関の使用条件
がきびしくなるにつれて、シリンダライナ等の摺
動部品にも更に高度な耐摩耗性が要求されるよう
になつて来ており、摺動面にSiC等のセラミツク
層を形成することが試みられている。
ところでSiC等のセラミツク層を摺動面に形成
する方法としてSiC等のセラミツク質の粒子と金
属粒子との混合物を摺動面にプラズマ溶射する方
法や焼成セラミツクを摺動面側に接合させる方法
が知られているが、溶射方法によつて形成された
溶射層は一般には多量の空孔を含んだ状態で形成
され、それ自本の密着強度が充分でなく、摺動面
として使用中に該表面層を構成している硬質粒子
が剥離、脱落し易く、この剥離、脱落した粒子は
逆に研摩剤として作用することになつて摺動部品
に研摩耗を発生させることになる。また焼成セラ
ミツクスはその製造過程でセラミツク粉に焼結助
剤が添加されており、焼結によつてこれがセラミ
ツクの粒界にガラス相を形成し、セラミツク粒子
を結合させる役をするが、ガラス相自体はセラミ
ツクよりも強度や耐摩耗性が小さいため焼結セラ
ミツクの強度や耐摩耗性を低下させることにな
る。
本発明は上記の如き問題点を解決した摺動面に
SiC層を有する摺動部品およびその鋳造方法を提
供することを目的とし、金属摺動部品の摺動面表
面にいわゆるCVD−SiCといわれるSiC層が移植
され、摺動面を形成している耐摩耗性金属摺動部
品および鋳造鋳型の摺動面に相当する部分を形成
する黒鉛製の鋳型部分の表面に化学気相析出法
（CVD法）によつて緻密なSiCを形成しておいて、
この鋳型部分を組込んで鋳造鋳型を組立て、これ
に金属溶湯を注入、凝固せしめ、鋳型面のCVD
−SiC層を鋳造品の摺動面表面に移植して、緻密
なCVD−SiC層によつて摺動面が形成されている
摺動部品鋳造品を得る方法に係る。
CVD−SiC層は緻密で使用中に粒子が剥落する
ようなことはなく、すぐれた耐摩耗性を有する
が、金属面に直接にCVD法によつてSiC層を形成
することは極めて困難であるため従来は実用され
ていなかつた。しかしながら本発明の方法によれ
ば摺動部品の摺動面にCVD−SiC層を容易に形成
することができるようになつた。
次に添付図面を参照しながら本発明について説
明する。
第１図は本発明の方法の実施態様の一例である
内燃機関用シリンダライナの縦断面を示してい
る。鋳鉄の如き金属基材で作られた円筒状摺動部
品１の内周面２にCVD−SiC層３が移植されて摺
動面を形成している。その鋳造法について述べれ
ばまず外周面を精度よく仕上げ加工した黒鉛製円
筒中子４すなわちライナの摺動面に対応する鋳型
部分を準備する。中子用の黒鉛材料としては後述
するようにCVD法は高温で行なわれるので、中
子の膨脹係数がその外表面に析出したSiC層の膨
脹係数より小さいと冷却過程でSiC層にクラツク
が発生し易くなる。従つて中子用黒鉛材料として
はその熱膨脹係数がSiCの熱膨脹係数と同程度か
或いはこれより僅か大きいものを使用することが
望ましく、一例を挙げると熱膨脹係数が約５×
10-6／℃の黒鉛材料が好結果を示した。
このようにして準備した黒鉛製中子４を公知の
CVD法に従つて炉中で高温に加熱しておいて、
SiとＣとを含む混合ガスを周囲に供給し、黒鉛表
面および周囲で反応させてSiCを黒鉛表面に析出
させ、SiCの緻密な被膜を形成させる。CVD法で
得られるいわゆるCVD−SiC層は焼結によつて得
られるSiC層とは異なり、焼結助剤を用いないの
で粒界にガラス相を含むようなことはなく、極め
て均質緻密な組織を有している。
SiとＣとを含む混合ガスとしてはSiCl4、C3H8
およびH2の混合ガスが適当であり、析出条件お
よび析出層について例示すると第１表に示すとお
りである。
例No.３においては析出層はβ−SiC中にＣが微
細に分散した組織を示しているが、Ｃを微細に分
散させることによつて潤滑特性を改善し、摺動特
性を更に向上させることができる。
The present invention relates to a wear-resistant metal sliding component and a method for casting the same, and more specifically, to a metal sliding component having a dense SiC layer on the sliding surface without a glassy phase in the grain boundaries, and a method for casting the same. . For example, in order to improve the wear resistance of sliding parts such as cylinder liners for internal combustion engines, sliding surfaces are often subjected to chromium plating, wear-resistant thermal spraying, etc. However, as the operating conditions of internal combustion engines have become more severe in recent years, sliding parts such as cylinder liners are also required to have even higher wear resistance. Attempts are being made to form. By the way, methods for forming a ceramic layer such as SiC on the sliding surface include a method of plasma spraying a mixture of ceramic particles such as SiC and metal particles onto the sliding surface, and a method of bonding fired ceramic to the sliding surface. It is known that the sprayed layer formed by the thermal spraying method is generally formed with a large number of pores, does not have sufficient adhesion strength, and is easily damaged during use as a sliding surface. The hard particles constituting the surface layer tend to peel off and fall off, and the peeled off and fallen particles conversely act as an abrasive, causing abrasive wear on sliding parts. In addition, during the manufacturing process of fired ceramics, a sintering aid is added to the ceramic powder, and during sintering, this forms a glass phase at the grain boundaries of the ceramic and serves to bond the ceramic particles. Since sintered ceramic itself has lower strength and wear resistance than ceramic, it reduces the strength and wear resistance of sintered ceramic. The present invention provides a sliding surface that solves the above problems.
The purpose of the present invention is to provide a sliding part having a SiC layer and a casting method thereof.A SiC layer called CVD-SiC is grafted onto the sliding surface of a metal sliding part to form a sliding surface. Dense SiC is formed on the surface of the graphite mold part, which forms the part corresponding to the sliding surface of the abrasive metal sliding parts and the casting mold, by chemical vapor deposition (CVD method).
A casting mold is assembled by incorporating this mold part, and molten metal is poured into this, solidified, and CVD is performed on the mold surface.
- It relates to a method of obtaining a sliding part casting whose sliding surface is formed by a dense CVD-SiC layer by transplanting a SiC layer onto the sliding surface of the casting. The CVD-SiC layer is dense and particles do not fall off during use, and it has excellent wear resistance, but it is extremely difficult to form a SiC layer directly on a metal surface by the CVD method. Therefore, it has not been put into practical use in the past. However, according to the method of the present invention, it has become possible to easily form a CVD-SiC layer on the sliding surface of a sliding component. The present invention will now be described with reference to the accompanying drawings. FIG. 1 shows a longitudinal section of a cylinder liner for an internal combustion engine, which is an example of an embodiment of the method of the present invention. A CVD-SiC layer 3 is grafted onto the inner peripheral surface 2 of a cylindrical sliding component 1 made of a metal base material such as cast iron to form a sliding surface. Regarding the casting method, first, a graphite cylindrical core 4 whose outer peripheral surface has been precisely finished is prepared, that is, a mold portion corresponding to the sliding surface of the liner. Since the CVD method is carried out at high temperatures for graphite materials for the core, as will be explained later, if the expansion coefficient of the core is smaller than that of the SiC layer deposited on its outer surface, cracks will occur in the SiC layer during the cooling process. It becomes easier to do. Therefore, it is desirable to use a graphite material for the core whose coefficient of thermal expansion is approximately the same as that of SiC or slightly larger than that of SiC.
10 -6 /℃ graphite material showed good results. The graphite core 4 prepared in this manner is
Heat it to a high temperature in a furnace according to the CVD method,
A mixed gas containing Si and C is supplied to the surrounding area, causing a reaction on and around the graphite surface to deposit SiC on the graphite surface, forming a dense film of SiC. Unlike the SiC layer obtained by sintering, the so-called CVD-SiC layer obtained by the CVD method does not use a sintering aid, so it does not contain a glass phase at the grain boundaries, and has an extremely homogeneous and dense structure. have. Mixed gases containing Si and C include SiCl 4 and C 3 H 8
A mixed gas of H 2 and H 2 is suitable, and examples of the deposition conditions and the deposited layer are shown in Table 1. In Example No. 3, the precipitated layer shows a structure in which C is finely dispersed in β-SiC, but by finely dispersing C, the lubricating properties are improved and the sliding properties are further improved. be able to.
【表】
上記のようにして外周面に緻密なSiC層３′を
形成した中子５を通例のとおり主型６に組みこみ
鋳型７を組立て、該鋳型７のキヤビテイ８内に鋳
鉄溶湯を注入して凝固させる。このようにすると
中子５の外周面に形成されていたCVD−SiC層
３′はそのまわりに凝固した鋳鉄によつて鋳ぐる
まれる。
次に型ばらしを行ない、黒鉛製中子４を取除く
とCVD−SiC層３′が内周面に移植され、固着し
た状態で残留して摺動面を形成しているシリンダ
ライナ鋳造品を得る。黒鉛製中子は機械的に破壊
して除去するか、或いは臭素（Br）等の液中に
浸漬するなどの化学的処理をすることにより容易
に除去することができる。
CVD−SiC層は硬質なので仕上加工が困難であ
るが、上記方法による場合黒鉛製中子４の表面形
状を精度よく仕上げておいてこれにCVD−SiC層
を形成すればシリンダライナ鋳造品内周面に移植
されたSiC層の表面も摺動面として充分な精度を
持つことになるから仕上げ加工は僅少で済むこと
になつて好都合である。
本発明においてはCVD−SiC層３′を形成した
中子５′のCVD−SiC層の上に、更に従来の溶射
法によつて例えばFe、Ni、Cr、Alの如き金属ま
たはこれらの合金、あるいはTiO2、Al2O3、
ZrO2、Cr2O3の如き金属酸化物、TiCやTiN等の
金属炭化物、窒化物の一つまたは二つ以上を含む
溶射層９′を形成して中子５′とし、該中子５′を
前記同様に主型６に組込んで鋳型７とし、鋳鉄溶
湯を注入凝固させることによつて内周面にCVD
−SiC層３とその下に溶射層９との二相が移植、
形成されているシリンダライナ１１とすることも
でき、このようにして得られたシリンダライナ１
１は鋳鉄基材とCVD−SiC層との間に空孔を有す
る溶射層が介在するために、鋳鉄基材とCVD−
SiC層との結合が良好であり、或いは溶射層９を
特に熱伝導率の小さい物質、例えばZrO2などを
多量に含むものとすればシリンダライナの断熱効
果が良好となり内燃機関の熱効率を改善すること
ができる。
以上説明したように本発明は従来不可能とされ
て来た摺動面にCVD−SiC層を有する金属摺動部
品を提供することを可能にし、摺動部品の耐摩耗
性を著しく向上せしめると共に、CVD−SiC層の
有用な特性の工業的利用分野を拡大するものであ
り、その工業的価値はきわめて大きい。[Table] The core 5 with a dense SiC layer 3' formed on its outer peripheral surface as described above is assembled into the main mold 6 as usual to assemble the mold 7, and molten cast iron is poured into the cavity 8 of the mold 7. and solidify. In this way, the CVD-SiC layer 3' formed on the outer peripheral surface of the core 5 is surrounded by solidified cast iron. Next, the mold is broken down and the graphite core 4 is removed, and the CVD-SiC layer 3' is transplanted to the inner circumferential surface, remaining in a fixed state and forming the sliding surface of the cylinder liner cast product. obtain. The graphite core can be easily removed by mechanically breaking it or by chemical treatment such as immersion in a liquid such as bromine (Br). Since the CVD-SiC layer is hard, it is difficult to finish it, but in the case of the above method, if the surface shape of the graphite core 4 is finished with high precision and the CVD-SiC layer is formed on it, the inner periphery of the cylinder liner cast product can be The surface of the SiC layer grafted onto the surface also has sufficient precision as a sliding surface, which is advantageous because only a small amount of finishing work is required. In the present invention, on the CVD-SiC layer of the core 5' on which the CVD-SiC layer 3' has been formed, metals such as Fe, Ni, Cr, Al, or alloys thereof, Or TiO 2 , Al 2 O 3 ,
A sprayed layer 9' containing one or more of metal oxides such as ZrO 2 and Cr 2 O 3 , metal carbides such as TiC and TiN, and nitrides is formed to form a core 5'. ' is assembled into the main mold 6 in the same manner as above to form the mold 7, and by injecting and solidifying molten cast iron, CVD is applied to the inner peripheral surface.
-Two phases of SiC layer 3 and thermal sprayed layer 9 are transplanted under it,
The cylinder liner 11 obtained in this way can also be
1 is due to the presence of a sprayed layer with pores between the cast iron base material and the CVD-SiC layer.
If the bond with the SiC layer is good, or if the sprayed layer 9 contains a large amount of a material with particularly low thermal conductivity, such as ZrO 2 , the cylinder liner will have a good heat insulation effect and improve the thermal efficiency of the internal combustion engine. be able to. As explained above, the present invention makes it possible to provide a metal sliding component having a CVD-SiC layer on the sliding surface, which has been considered impossible in the past, and significantly improves the wear resistance of the sliding component. , it expands the field of industrial application of the useful properties of CVD-SiC layers, and its industrial value is extremely large.
第１図は本発明の摺動部品の実施例を示す中央
断面図、第２図は本発明の方法の実施に用いられ
る鋳型部分の一例を示す縦断面図、第３図は同じ
くCVD−SiC層を形成した鋳型部分の一例を示す
縦断面図、第４図は同じく鋳型組立状態を示す縦
断面図、第５図はCVD−SiC層とその上に溶射層
を形成した鋳型部分の他の例を示す縦断面図、第
６図は第５図の鋳型部分を用いて製作した他の実
施例を示す中央縦断面図である。
１……円筒状摺動部品、２……内周面、３……
CVD−SiC層、４……黒鉛製中子（鋳型部分）、
５……CVD−SiC層を外周面に形成した中子、６
……主型、７……鋳型、８……キヤビテイ、９，
９′……溶射層、１１……CVD−SiC層とその下
に溶射層とが内周面に形成されている円筒状摺動
部品。
Fig. 1 is a central cross-sectional view showing an example of the sliding part of the present invention, Fig. 2 is a longitudinal cross-sectional view showing an example of a mold part used for carrying out the method of the present invention, and Fig. 3 is a CVD-SiC FIG. 4 is a vertical cross-sectional view showing an example of the mold part with a layer formed thereon, FIG. 4 is a vertical cross-sectional view showing the mold assembly state, and FIG. A vertical cross-sectional view showing an example. FIG. 6 is a central vertical cross-sectional view showing another embodiment manufactured using the mold part of FIG. 5. 1... Cylindrical sliding part, 2... Inner peripheral surface, 3...
CVD-SiC layer, 4...graphite core (mold part),
5... Core with CVD-SiC layer formed on the outer peripheral surface, 6
...Main mold, 7...Mold, 8...Cavity, 9,
9'...A sprayed layer, 11...A cylindrical sliding component in which a CVD-SiC layer and a sprayed layer thereunder are formed on the inner peripheral surface.
Claims (1)
に化学気相析出法によるSiC層が移植され、厚さ
0.05〜5.0mmの緻密なSiC層によつて摺動面が形成
されていることを特徴とする耐摩耗性金属摺動部
品。 ２ 金属摺動部品の鋳造方法において、摺動部品
の摺動面に対応する鋳型部分を黒鉛材で構成し、
該鋳型部分の表面に厚さ0.05〜5.0mmのSiC層を化
学気相析出法（CVD法）により成形する第一工
程、前記鋳型部分を組込んだ鋳型を組立てる第二
工程、前記鋳型に金属溶湯を注入凝固させる第三
工程、および型ばらしをして黒鉛製鋳型部分を取
除いて摺動部品鋳造品を得る第四工程より成るこ
とを特徴とする摺動面表面に化学気相析出法によ
るSiC層が移植され、摺動面を形成している耐摩
耗性金属摺動部品の鋳造方法。 ３ 金属摺動部品の鋳造方法において、摺動部品
の摺動面に対応する鋳型部分を黒鉛材で構成し、
該鋳型部分の表面に厚さ0.05〜5.0mmのSiC層を化
学気相析出法（CVD法）により形成する第一工
程、前記鋳型部分のSiC層の上面に金属または金
属の酸化物、炭化物または窒化物の一種または二
種以上を溶射して溶射層を形成する第二工程、前
記SiC層と溶射層とを有する前記鋳型部分を組込
んで鋳型を組立てる第三工程、前記鋳型に金属溶
湯を注入凝固させる第四工程および型ばらしをし
て黒鉛製鋳型部分を取除いて摺動部品鋳造品を得
る第五工程より成ることを特徴とする摺動面表面
に化学気相析出法によるSiC層とその下に溶射層
とが移植され、摺動面を形成している耐摩耗性金
属摺動部品の鋳造方法。[Claims] 1. In a wear-resistant metal sliding part, an SiC layer is implanted on the sliding surface surface by chemical vapor deposition, and the thickness
A wear-resistant metal sliding component characterized by a sliding surface formed of a dense SiC layer of 0.05 to 5.0 mm. 2. In a method for casting metal sliding parts, the mold part corresponding to the sliding surface of the sliding part is made of graphite material,
A first step of forming a SiC layer with a thickness of 0.05 to 5.0 mm on the surface of the mold part by chemical vapor deposition (CVD), a second step of assembling a mold incorporating the mold part, and a second step of forming a SiC layer with a thickness of 0.05 to 5.0 mm on the surface of the mold part. A chemical vapor deposition method on the surface of a sliding surface, characterized by comprising a third step of injecting and solidifying molten metal, and a fourth step of breaking the mold and removing the graphite mold part to obtain a cast sliding part. A method for casting wear-resistant metal sliding parts in which a SiC layer is implanted to form the sliding surface. 3. In the method of casting metal sliding parts, the mold part corresponding to the sliding surface of the sliding part is made of graphite material,
A first step of forming a SiC layer with a thickness of 0.05 to 5.0 mm on the surface of the mold part by chemical vapor deposition (CVD method), a metal or metal oxide, carbide, or a second step of thermally spraying one or more types of nitride to form a thermally sprayed layer; a third step of assembling a mold by assembling the mold portion having the SiC layer and the thermally sprayed layer; pouring molten metal into the mold. A SiC layer is formed on the surface of the sliding surface by chemical vapor deposition. A method for casting a wear-resistant metal sliding part, in which a thermal sprayed layer is grafted underneath to form a sliding surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10488182A JPS58221270A (en) | 1982-06-18 | 1982-06-18 | Abrasion-resistant sliding parts and casting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10488182A JPS58221270A (en) | 1982-06-18 | 1982-06-18 | Abrasion-resistant sliding parts and casting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58221270A JPS58221270A (en) | 1983-12-22 |
| JPH0445263B2 true JPH0445263B2 (en) | 1992-07-24 |
Family
ID=14392526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10488182A Granted JPS58221270A (en) | 1982-06-18 | 1982-06-18 | Abrasion-resistant sliding parts and casting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58221270A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923664A (en) * | 2019-11-28 | 2020-03-27 | 宜兴王子制陶有限公司 | Preparation method of two-dimensional reinforced honeycomb structure forming die coating |
-
1982
- 1982-06-18 JP JP10488182A patent/JPS58221270A/en active Granted
Non-Patent Citations (1)
| Title |
|---|
| PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON CHEMICAL VAPOR DEPOSITON=1977 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58221270A (en) | 1983-12-22 |
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