• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention can be used to seal the cylinder head of an internal combustion engine. The purpose of the invention is to improve the seal tightness. The seal comprises a carrier sheet 1 and a plate 2 of soft material consisting of inorganic fibers and / or fillers bound by a binder, mainly asbestos fibers, impregnated with polymeric impregnating means (IC) and provided with a through hole 3 with a metal edging 4. Plate 2 is made in the form of a multi-dimensionally cross-linked polysiloxane structure containing, as the first IC, the first polysiloxane with reactive hydrogen atoms for reaction with the free groups of OH fibers and fillers, and The second IP is self-linking. In addition, the structure contains a second polysiloxane that is crosslinked by reactive hydrogen atoms of the first polysiloxane, the latter has a higher degree of crosslinking (curing) than the first polysiloxane, and some fibers or fillers reach the surface of plate 2. To obtain a seal, plate 2 is impregnated with polymer ICs and supplied with metal edging along the edge of the hole 3. The impregnation is carried out by the first polysiloxane with hydrogen reactive groups — as the first IC, the metal edging 4 is installed, in places is sealed by means of pressing 8 and pressing the first IC into the hollow spaces of plate 2, respectively. Then the plate is impregnated with the second IC, the second polysiloxane forms a more branched siloxane skeleton than the first polysiloxane, then mechanically removes the excess amount of the second IC so that a portion of the fibers reaches the surface of the plate, and the seal is heat treated to crosslink the polysiloxanes. 2 sec. and 15 hp f-ly, 1 ill.
    公开号:SU1549488A3
    申请号:SU833653811
    申请日:1983-10-12
    公开日:1990-03-07
    发明作者:Биндель Рудольф；Руофф Ойген
    申请人:Элринг Дихтунгсверке Гмбх (Фирма)；
    IPC主号:
    专利说明:


    cm
    With hydrogen reactive groups as the first IC, the metal edging 4 is installed, in places compacted by pressing 8 and the first IC is pressed into the hollow spaces of plate 2, respectively, then the plate is impregnated with the second IC, and the second polysiloxane forms
    a more branched siloxane skeleton than the first polysiloxane, then an excess amount of the second IC is mechanically removed so that some of the fibers reach the surface of the plate, and the seal is heat treated to crosslink the polysiloxanes. 2 sec. and 15 hp f-ly, 1 ill.
    The invention relates to mechanical engineering, in particular to the field of engine construction, and can be used to seal the cylinder head of an internal combustion engine.
    The aim of the invention is to improve the sealing of the cylinder head.
    The drawing shows a diagram of a method for producing a flat seal.
    A flat seal, preferably a cylinder head seal, contains carrier sheet 1 and at least one plate 2 of soft material consisting of bonded non-organic fibers and / or fillers, mainly asbestos fibers, impregnated with polymeric impregnating fibers. means and provided with at least one through hole 3 with a metal edging 4.
    Plate 2 of soft material is made in the form of a multi-dimensionally cross-linked polysiloxane structure containing, as a first impregnating agent, a first polysiloxane with reactive hydrogen atoms for reaction with free OH groups of fibers and fillers, and as a second impregnating agent - self-crosslinking, as well as reactive hydrogen atoms of the first polysiloxane, second polysiloxane, the latter having a higher degree of crosslinking (curing) than the first polysiloxane, and some fibers or nap The carriers reach the surface of the plate 2 of a soft material. The first polysiloxane is predominantly linear and has a molecular weight of 2000-4500, in particular about 3000-3500. Methylhydropolysiloxane or Si may be used as a fenest polyshtoxane.
    five
    r
    0
    5 n
    0
    0
    five
    lycon oil containing Si-H groups. The soft material plate may contain 2-15% by weight of the first polysiloxane, as well as 2-15% by weight of the second polysiloxane.
    The share of the first polysiloxane in the shaped edges of a plate of soft material may exceed its share in other areas, but not more than 80%.
    The method for producing a flat seal is as follows. Two plates 2 of soft material are rolled onto a supporting metal sheet 1 provided with anchor tabs. From the sealing plate 5 thus formed, the holes 3 for the combustion chamber are stamped by means of the die 6.
    Then, the soft material plate 2 is impregnated with the first polysilexane with hydrogen reactive groups — as the first impregnating agent, cutting out the last device 7, the metal fringing 4 is installed, at least in places is compacted by pressing 8, the first impregnating means is pushed into the existing in the appropriate case, the hollow spaces of the plate 2 of soft material, then impregnate the last with the second impregnating hole, cutting it with the device 9, and the second polysiloxane forms a more branched siloxane framework than the first polysiloxane is then mechanically removed an excess amount of the second impregnating agent so that some of the fibers (respectively, fillers) reach the surface of the plate 2 of soft material, and the seal is heat treated (using a heating device 10 for crosslinking polysiloxanes}. The outer side of the piping
    51
    The ki are mechanically freed from the second impregnating agent, as which a mixture consisting of polyorganic siloxane resins forming a two- and three-dimensional structure can be used. Reactive silicone oil can be added to the second impregnating agent as a plasticizer and anti-adhesion agent or a catalyst as a dispersion accelerator for the second field of siloxane. The catalyst may be a salt of zinc, aluminum or lead, or an organotitanate. To the second impregnating agent could be added 3-22 wt.% Of the catalyst in terms of solid resin,
    The first immersion agent can be introduced into a plate of soft material without solvent, and the second polysiloxane can be introduced into a plate of soft material as a solution, in particular in toluene or xylene, in which case approximately 20-40% by weight are used, mainly 30 wt.% solution.
    For crosslinking the polysiloxanes plas

    Tina from a soft material is heat treated at 160 C.
    Obtaining a plate in this way due to the reaction of the first impregnating agent with free groups of OH fibers and / or fillers contributes to the achievement of noticeable hydrophobic and anti-adhesive properties of the plate of soft material. The second impregnating agent also forms a polymer net with reactive groups of the first impregnating agent, so that a connection is achieved which gives the flat compaction optimum thermal stability properties under dynamic loads, cross section tightness, elasticity characteristics, seating characteristics and resistance to cooling and lubricating agents, as well as anti-adhesive surface properties. Thus, this invention contributes to improved reliability and durability of the seal.
    权利要求:
    Claims (17)
    [1]
    1. Plane seal, predominantly seal head qi0
    five
    0
    lindras, containing a carrier sheet and at least one plate of soft material, consisting of inorganic fibers and / or fillers connected by a binder, mainly asbestos fibers, impregnated with polymeric impregnating means and equipped with at least one through hole metal edging, characterized in that, in order to increase reliability and durability, the plate of soft material is made in the form of a multi-dimensional cross-linked poly-siloxane structure containing first impregnating means, the first polysiloxane with reactive hydrogen atoms to react with free OH groups of fibers and fillers, and as the second impregnating means - self-crosslinking, as well as crosslinked with reactive hydrogen atoms of the first poly-5 toxane, second polysiloxane, the latter having a higher degree of crosslinking ( curing) than the first polysiloxane, and some of the fibers or fillers reach the surface of a plate of soft material.
    [2]
    2. The seal according to claim 1, wherein the first polysiloxane is predominantly linear and has a mol.m. between about 2000 and 4500, in particular about 3000-3500.
    [3]
    3. Compaction according to claims 1 and 2, t - characterized by the fact that methylhydropolysiloxane or silicone oil containing groups is used as the first polysiloxane,
    [4]
    4. Sealing according to claims 1 to 3, which is based on the fact that the plate of soft material contains 2 to 15% by weight of the first polysiloxane.
    [5]
    5. Compaction according to PP-4, with t l and - alternating in that the plate of soft material contains 2-15 wt.% Of the second polysiloxane.
    [6]
    6. Compaction according to claims 1-5, about t l k0
    five
    0
    five
    0
    five
    This is due to the fact that the share of paired polysiloxane in the cut edges of a plate made of soft material exceeds its share in other areas, but not more than 80%.
    [7]
    7. A method of producing a flat seal, which consists in impregnating a plate of soft material with polymer impregnating
    means and supply with a metal edging along the edge of at least one of its through-hole, which is characterized by the fact that, in order to increase reliability and durability, a plate of soft material is impregnated with the first polysiloxane with reactive hydrogen groups as the first impregnating means, the metal edging is at least in places compacted by pressing, the first impregnating agent is pressed into the existing hollow spaces of the soft material plate, then impregnated after the second is a second impregnating agent, the second poly-siloxane forms a more branched siloxane skeleton than the first polysiloxane, then an excess amount of the second impregnating agent is mechanically removed, so that some of the fibers (respectively, fillers) reach the surface of the soft material plate, the seal is heat treated to crosslink the polysiloxanes.
    [8]
    8. The method according to claim 7, which is different from the fact that the outer side of the edging is mechanically freed from the second impregnating means.
    [9]
    9. A method according to claims 7 and 8, characterized in that a mixture consisting of polyorganic schoxane resins forming a two- and three-dimensional structure is used as the second impregnating agent.
    [10]
    10. The method according to claims 7-9, characterized in that by the second imp
    0
    five
    A non-reactive silicone oil is added as a plasticizer and anti-gelling agent.
    [11]
    11. A method according to claims 7-9, characterized in that a catalyst is added to the second impregnating agent as a dispersion accelerator for the second polysiloxane.
    [12]
    12. The method according to claim 11, wherein the difference is that with the use of a zinc, aluminum or lead salt or an organotitanate salt as a catalyst.
    i
    [13]
    13. A method according to claim 11 and 12, characterized in that 3-22 wt.% Of catalyst, calculated on solid resin, is added to the second impregnating agent.
    [14]
    14. The method according to claims 7-13, about the t and which is due to the fact that the first impregnating agent is introduced
    into a plate of soft material without solvent.
    [15]
    15. A method according to claims 7-14, characterized in that the second polysiloxane is introduced into the plate of soft material as a solution, in particular in toluene or xylene.
    [16]
    16. The method according to Claim 15, which is different from that with the use of approximately 20-40%, preferably 30% solution.
    [17]
    17. The method according to claims 7-16, which is based on the fact that the plate of soft materials for crosslinking polysiloxanes is subjected to heat treatment at.
    类似技术:
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    GB1583530A|1981-01-28|Method of producing an impregnated flat gasket such as a cylinder head gasket
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    同族专利:
    公开号 | 公开日
    US4500100A|1985-02-19|
    JPH0139708B2|1989-08-23|
    FR2535430A1|1984-05-04|
    FR2535430B1|1987-07-17|
    IT1163873B|1987-04-08|
    JPS59131685A|1984-07-28|
    IT8322331D0|1983-07-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE7303470U|1973-06-20|Goetzewerke Goetze F Ag|Cylinder head gasket for internal combustion engines|
    US2211045A|1937-12-27|1940-08-13|Detroit Gasket & Mfg Company|Gasket and method of manufacturing same|
    US2943010A|1955-08-12|1960-06-28|Raybestos Manhattan Inc|Composite fabric and method of making the same|
    US2828988A|1955-09-09|1958-04-01|Chrysler Corp|Reinforced gasket for internal combustion engines or the like|
    NL6406113A|1963-09-09|1965-03-10|
    DE1255924B|1966-02-11|1967-12-07|Wacker Chemie Gmbh|Organopolysiloxane molding compounds which harden at room temperature with the ingress of water to form elastomers|
    FR2053829A5|1969-06-30|1971-04-16|Dana Corp|Self-tightening cylinder head joint|
    US3600352A|1968-06-10|1971-08-17|Gen Electric|Silicone construction sealant|
    US3897576A|1970-09-21|1975-07-29|Tba Industrial Products Ltd|Production of sheet material for use as gaskets|
    US3919161A|1971-12-29|1975-11-11|Gen Electric|Heat curable polysiloxane compositions containing fibers|
    DE2304505B2|1973-01-31|1977-03-03|Goetzewerke Friedrich Goetze Ag, 5093 Burscheid|CYLINDER HEAD GASKET FOR COMBUSTION MACHINERY|
    FR2226375B1|1973-04-20|1976-03-26|Cefilac|
    JPS5629910B2|1977-02-14|1981-07-11|
    DE2713542C2|1977-03-28|1982-12-02|Goetze Ag, 5093 Burscheid|Soft flat gasket, especially cylinder head gasket|
    DE2816459C2|1978-04-15|1982-11-04|Goetze Ag, 5093 Burscheid|Impregnated flat gasket made of soft material, in particular cylinder head gasket for internal combustion engines|
    US4169185A|1978-07-03|1979-09-25|Dana Corporation|Gasket for high temperature application having sealant of phenyl and hydrocarbyl-substituted polysiloxane|
    JPS5949786B2|1978-07-24|1984-12-05|Hitachi Ltd|
    DE3042912C2|1980-11-14|1985-05-09|Goetze Ag, 5093 Burscheid|Impregnated flat gasket, especially cylinder head gasket|FR2550601B1|1983-08-11|1990-05-11|Lechler Elring Dichtungswerke|PROCESS FOR PRODUCING A FLAT JOINT|
    DE3544740C1|1985-12-18|1987-06-04|Goetze Ag|Flat soft gasket|
    DE3643743A1|1986-12-20|1988-06-30|Goetze Ag|FABRIC GASKET GASKET|
    US4822062A|1987-12-23|1989-04-18|Dana Corporation|Two material non-asbestos gasket and method of making the same|
    US5024863A|1990-02-02|1991-06-18|Jmk International, Inc.|Engine gasket with oil impermeable surface|
    US5238262A|1991-11-21|1993-08-24|Nunes Anthony M|Bracket and bushing assembly for walking beam of vehicle wheel suspension system|
    US5368315A|1992-12-28|1994-11-29|Wacker Silicones Corporation|Non-stick automotive gaskets|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3240295|1982-10-30|
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