发明名称 |
Wet type paper friction material with combined improved friction characteristics and compression fatigue strength |
摘要 |
A wet paper friction material, mainly used for a slip lock-up of an automatic transmission, obtained by impregnating a paper material with a thermosetting resin, thermosetting, and molding under pressure, to attain compatibility between a good frictional characteristic and good fatigue strength under compression, wherein the paper material, in addition to a cellulose pulp and a filler, contains 30 to 80 wt % of aramid pulp with its drainability being adjusted to 250 to 440 ml in a total amount of pulp, and further contains, as a friction modifier, diatomaceous earth cylindrically formed so as to be net-like in the cylinder part and having its mean length 4 to 6 mu m.
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申请公布号 |
US6121168(A) |
申请公布日期 |
2000.09.19 |
申请号 |
US19990346647 |
申请日期 |
1999.07.01 |
申请人 |
DYNAX CORPORATION;NISSAN MOTOR CO., LTD. |
发明人 |
IRIFUNE, MAKI;ISHITANI, TETSUYA;SHIBUYA, TAKAO;MAEDA, MAKOTO;CHIBA, NOBUTAKA;MURAKAMI, YASUHIRO |
分类号 |
C09K3/14;D21H13/26;D21H17/48;D21H17/67;D21H17/68;F16D69/02;(IPC1-7):B32B27/02 |
主分类号 |
C09K3/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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