CN101827798B - 用于生产滚动轴承的容纳多个滚动体的石墨护圈的方法 - Google Patents

用于生产滚动轴承的容纳多个滚动体的石墨护圈的方法 Download PDF

Info

Publication number
CN101827798B
CN101827798B CN2008800249515A CN200880024951A CN101827798B CN 101827798 B CN101827798 B CN 101827798B CN 2008800249515 A CN2008800249515 A CN 2008800249515A CN 200880024951 A CN200880024951 A CN 200880024951A CN 101827798 B CN101827798 B CN 101827798B
Authority
CN
China
Prior art keywords
guard ring
graphite
injection molding
rolling bearing
molding body
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 - Fee Related
Application number
CN2008800249515A
Other languages
English (en)
Other versions
CN101827798A (zh
Inventor
克努特·奥夫阿尔特
于尔根·吉尔
克里斯蒂安·洛特迈尔
安德烈亚斯·弗雷克
迈克尔·格鲁尔
比吉特·德尔福布
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fifth Schaeffler Investment Management & CoKg GmbH
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of CN101827798A publication Critical patent/CN101827798A/zh
Application granted granted Critical
Publication of CN101827798B publication Critical patent/CN101827798B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/44—Selection of substances
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/522—Graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
    • C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62695—Granulation or pelletising
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6021—Extrusion moulding
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6022—Injection moulding
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/94—Products characterised by their shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/50—Lubricating properties
    • F16C2202/52—Graphite
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2206/00—Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
    • F16C2206/02—Carbon based material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Ceramic Products (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

生产滚动轴承的容纳多个滚动体的石墨护圈的方法，其特征在于，以注塑法由包含碳中间相粉末的物料注塑成护圈注塑体，然后为了将中间相的碳转变成纯石墨而对所述护圈注塑体进行热处理。

Description

用于生产滚动轴承的容纳多个滚动体的石墨护圈的方法
技术领域
本发明涉及一种生产滚动轴承的容纳多个滚动体的石墨护圈的方法。
背景技术
在不同的应用领域中，例如真空技术、食品加工或电子生产设备(Productronic)，滚动轴承的脂润滑或油润滑是不可行的或不希望的，或者是，工作温度高于润滑剂的耐热性。因此需要一种特殊的滚动轴承，所述滚动轴承具有高热稳定性和高介质稳定性，同时又具有最佳的滚动轴承特性并且也正好适用于干运转(Trockenlauf)。通过不使用呈脂形式或油形式的润滑剂并且具有高热稳定性，使得所述滚动轴承特别适用于食品技术设备中，所述滚动轴承同样也适合于耐高温的轴承位置(Largerstelle)，例如内燃机等中的轴承位置。
这种合适的、已知的滚动轴承通常具有陶瓷的滚动体，然而所述陶瓷的滚动体由于反复的、碰撞式的施以应力而具有高破碎危险。所述陶瓷的滚动体的生产成本也较高并且从经济角度通常是不可取的。此外，由于陶瓷的原材料不能被制成滚针(Nadelrolle)，因而只能使用具有陶瓷球的初级的球轴承。
同样也是已知的是，将滚动轴承构造有石墨护圈，将滚动体容纳在所述石墨护圈中。石墨其本身适合作为润滑材料，也就是说，由于护圈中最小化的石墨磨擦，所述滚动轴承具有自润滑性并且其因此能够被使用在所提及的、要求苛刻的应用领域。然而，所述滚动轴承的缺点是，所述石墨护圈至今仍然必须非常费劲地通过车削或铣削来切削生产，其中，所述切削生产是困难的，就此已经在DE 36 11 907中指出。因为这样的石墨构件具有很高的破碎危险性，这在生产范围内是有问题的。因而，只能给出小规模的生产切削制成的石墨护圈并且所述生产是成本极高的。虽然如此，利用所述石墨护圈仍可制造出最小化自润滑的高性能滚动轴承，所述高性能滚动轴承尤为适用于干运转应用以及其他最小量润滑应用或介质润滑应用。
发明内容
本发明基于的问题是，给出一种生产石墨护圈的方法，所述方法相对于迄今已知的切削生产方法有所简化。
为了解决所述问题，在开头提及类型的方法中根据本发明设置为，以注塑法由包含碳中间相粉末的物料来注塑成护圈注塑体，然后为了将中间相的碳转变成纯石墨而将所述护圈注塑体进行热处理。
本发明基于如下有利认识，即，可行的是，能以注塑法生产护圈注塑体，该护圈注塑体的主要组分是存在于中间相中的碳粉末。所述生产能通过使用粉末压铸法进行，也可能是PIM法(PIM：粉末注塑成型(Powder Injection Molding))。通过所述粉末注塑法就有可能生产出在形状上和大小上都基本上相应于成品石墨元件的护圈注塑体，而仅还必须以热处理方法进行石墨化，以便将中间相的碳转变成石墨。在注塑法中可行的是，在使用能塑性变形的物料之后，能够生产出不同几何形状的护圈，而所述护圈只需要进行温度处理(temperaturbehandeln)。可能的机械再加工步骤，特别是切削再加工步骤都是不需要的，因此开头提及的问题有利地通过根据本发明的方法将不再存在。同时，由于一定程度上自由的可成型性，而可以制造容纳不同构造的滚动轴承的护圈，从而在使用根据本发明生产的石墨护圈的情况下，球轴承的生产，以及滚针轴承、滚柱轴承和桶型滚子轴承的生产都是可行的，所述石墨护圈负责各种轴承类型的自润滑。
石墨化的热处理优选地在1800-3200℃的温度下进行，尤其是在2000-3000℃的温度下进行。
在本法的改进方案中可以设置为，在注塑后，护圈注塑体首先在温度为150-600℃的温度下，尤其是在200-500℃之间进行处理，以去除所包含的粘合剂，此后为了石墨化而进行热处理。所使用的注塑物料除了碳中间相粉末和用于石墨化过程的一种或多种添加剂以外还包括用于生产物料和调整物料粘性的一定份额的粘合剂。所述粘合剂在护圈中，即在护圈绿件中仍然存在，并且将要被去除，粘合剂的去除通过所介绍的热脱粘(entbindern)过程实现。随着温度的升高，粘合剂或不同的粘合成分的粘性降低，随后所述粘合剂或不同的粘合成分蒸发或分解，其中，脱粘过程延续几个小时。随后，通常也被称为棕件的已脱粘的注塑体为了石墨化而进行热处理。
对于热脱粘过程另选地，同样可行的是，所述护圈注塑体以催化的方式进行脱粘，这与较短的处理时间相联系，该处理时间例如在2-3小时的范围内。这种方法是热分解的特殊形式，该形式与所述热脱粘相比在通常更低的温度下进行，例如在50-150℃之间的范围内。催化脱粘过程能以如下方式进行，即，向脱粘炉中的气氛添加气态的催化剂，例如HNO3。
此外，原则上液态脱粘或者通过超临界的CO2脱粘也是可以考虑的，然而各种所述的脱粘方法都连带着明显很高的工艺开支。
除了根据本发明的方法，本发明还涉及一种滚动轴承。所述滚动轴承包括内圈、外圈以及多个滚动体，所述多个滚动体被容纳在根据所描述的类型的方法无切削地生产的石墨滚动体护圈中。所述内圈和所述外圈以及所述滚动体能够由极其不同的钢组成，所述钢相应地与应用相关地进行选择。当滚动体被用在腐蚀性环境中时，可以使用耐腐蚀的钢；或者在提出高硬度要求时，可以使用耐高温的钢或表面硬化(
Figure G2008800249515D00031
)的钢；以及也可以使用传统钢，其中，各个构件当然也可以由不同的钢类型组成。
附图说明
下面，结合对附图进行参照的实施例来介绍本发明的其他优点和细节。
所述附图是示意性图示并且其中：
图1示出用于阐明根据本发明的方法的原理图示，以及
图2示出根据本发明的滚动轴承的作为原理图示的剖面图。
具体实施方式
图1以原理图示的形式示出根据本发明生产滚动轴承护圈的方法。
在阶段I中，首先示出用于生产颗粒的准备过程，在该准备过程中，可注塑的物料被熔化。从碳中间相粉末1及由粘合剂2和用于石墨化的一种或多种添加剂3组成的混合物出发，首先在步骤4中制造出混合物，所述混合物接着在造粒步骤5中，在应用挤压机连同接在后面的造粒装置的情况下被加工，从而产生终产品颗粒6。所述颗粒6具有更小的、硬化的小球或颗粒的形状并且由碳中间相粉末、所述一种或多种添加剂以及粘合剂组成。所述颗粒能够被生产成独立的工作物(Arbeitsgut)并且在生产石墨护圈时，才根据需要进行加工。
所述加工首先在步骤II中执行，所述步骤II 2描述了成型过程。将所述颗粒6放入挤压机7中，压铸装置8接在所述挤压机7后面。注塑设备构造用于PIM-注塑法(PIM：粉末注塑成型)，该注塑设备也可以加工这种由粉末组成的物料。在所述挤压机7中，首先所述颗粒熔化，此后，将已熔化的物料输送给压铸装置8中，然后在所述压铸装置8中，如在图1中原理性所示地，滚动轴承护圈注塑而成。随后护圈注塑体9或者说绿件在必要时根据之前的烘干过程在步骤III中脱粘，也就是说，去除粘合剂份额。如a)所描述的那样，当向脱粘系统中的气相输送相应的催化剂，例如HNO3时，所述脱粘过程能以催化的方式进行。所述催化剂使得粘合剂或粘合成分的分解或蒸发能在相当低的温度下执行。作为另选地，存在着可能性，如b)所描述的那样，同样设置有热脱粘过程，然而在该热脱粘过程中，护圈注塑体9必须加热到200-500℃之间的范围内的较高温度，而催化脱粘过程在低于200℃的温度下就能进行。
接着，已脱粘的注塑体9(也被称为棕件)在步骤IV中经历再次热处理，将通过脱粘过程(尤其是在热脱粘过程的情况下)已大致预烧结的碳中间相粉末转变为纯石墨。所述再次热处理在温度范围为2000-3000℃的相应的炉中进行。在该再次热处理过程期间，注塑体9被充分烧结并且与添加剂相联系下，将中间相的碳转变成石墨。这个石墨化步骤也持续数小时。在被冷却后，就得到了随时可以使用的石墨护圈，所述石墨护圈不需要切削式的再处理。
图2以原理图示的形式示出根据本发明的滚动轴承10，所述滚动轴承10包括外圈11、内圈12以及以根据本发明的方法生产的石墨护圈13。在所述石墨护圈的里面容纳有滚动体14，这里为球。所述外圈11、内圈12和所述滚动体14能够由根据各自的使用目而选择的钢组成，例如当滚动体被用在腐蚀性环境中时，可以使用耐腐蚀的钢。同样可以使用的是耐高温的钢、表面硬化的钢或传统的钢。根据本发明的滚动轴承10特别适用于干运转。因为石墨护圈13的石墨在轴承运动或滚动体运动中的最小化磨擦足以保证最小润滑，因此根据本发明的滚动轴承也能够用在要求苛刻的应用领域。
附图标号：
1    碳中间相粉末
2    粘合剂
3    添加剂
4    步骤
5    造粒步骤
6    颗粒
7    挤压机
8    压铸装置
9    护圈注塑体
10   滚动轴承
11   外圈
12   内圈
13   石墨护圈
14   滚动体

Claims (8)

1.生产滚动轴承的容纳多个滚动体的石墨护圈的方法，其特征在于，以注塑法由物料注塑成护圈注塑体，所述物料包含碳中间相粉末及由粘合剂和用于石墨化的一种或多种添加剂组成的混合物；然后为了将中间相的碳转变成纯石墨而对所述护圈注塑体进行热处理。
2.根据权利要求1所述的方法，其特征在于，用于石墨化的所述热处理在1800-3200℃温度下进行。
3.根据权利要求1所述的方法，其特征在于，用于石墨化的所述热处理在2000-3000℃之间的温度进行。
4.根据权利要求1至3之一所述的方法，其特征在于，在所述注塑后，对所述护圈注塑体首先在150-600℃的温度进行处理，以去除所包含的粘合剂，之后进行用于石墨化的所述热处理。
5.根据权利要求1至3之一所述的方法，其特征在于，在所述注塑后，对所述护圈注塑体首先在200-500℃之间的温度进行处理，以去除所包含的粘合剂，之后进行用于石墨化的所述热处理。
6.根据权利要求1至3之一所述的方法，其特征在于，在所述注塑后，将所述护圈注塑体以催化的方式进行脱粘。
7.滚动轴承，所述滚动轴承包括内圈、外圈以及多个滚动体，所述滚动体容纳在根据权利要求1至6之一所述的方法以无切削的方式生产的石墨滚动体护圈(13)中。
8.根据权利要求7所述的滚动轴承，其特征在于，所述内圈(12)和所述外圈(11)以及所述滚动体(14)由耐腐蚀的钢、耐高温的钢、表面硬化的钢或传统的钢制成。
CN2008800249515A 2007-07-24 2008-07-15 用于生产滚动轴承的容纳多个滚动体的石墨护圈的方法 Expired - Fee Related CN101827798B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007034487A DE102007034487A1 (de) 2007-07-24 2007-07-24 Verfahren zur Herstellung eines mehrere Wälzkörper aufnehmenden Käfigs aus Graphit für ein Wälzlager
DE102007034487.4 2007-07-24
PCT/EP2008/059244 WO2009013181A1 (de) 2007-07-24 2008-07-15 Verfahren zur herstellung eines mehrere wälzkörper aufnehmenden käfigs aus graphit für ein wälzlager

Publications (2)

Publication Number Publication Date
CN101827798A CN101827798A (zh) 2010-09-08
CN101827798B true CN101827798B (zh) 2013-01-02

Family

ID=39760836

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008800249515A Expired - Fee Related CN101827798B (zh) 2007-07-24 2008-07-15 用于生产滚动轴承的容纳多个滚动体的石墨护圈的方法

Country Status (6)

Country Link
US (1) US8765032B2 (zh)
EP (1) EP2173685B1 (zh)
JP (1) JP5354304B2 (zh)
CN (1) CN101827798B (zh)
DE (1) DE102007034487A1 (zh)
WO (1) WO2009013181A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201200756A (en) * 2010-03-10 2012-01-01 Ntn Toyo Bearing Co Ltd Cage and rolling bearing
DE102010034259A1 (de) 2010-08-13 2012-02-16 Schaeffler Technologies Gmbh & Co. Kg Wälzlager

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1247523A (zh) * 1996-12-19 2000-03-15 联合讯号公司 由致密碳泡沫体制成的碳－碳复合材料

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE445764B (sv) 1985-04-10 1986-07-14 Skf Ab Separationsorgan for kulorna i ett kullager samt sett att framstella detta organ
JPH01264917A (ja) * 1988-04-14 1989-10-23 Sumitomo Metal Ind Ltd 不浸透性炭素材の製造方法
US5066145A (en) * 1989-06-29 1991-11-19 Tribology Systems, Inc. Solid-lubricated bearing assembly
JPH03272320A (ja) 1990-03-20 1991-12-04 Toyo Tanso Kk 転がり軸受用保持器部材及びこれを組み込んだ転がり軸受
JP3297977B2 (ja) * 1996-02-02 2002-07-02 住友金属工業株式会社 炭素材の製造方法
DE102005035855A1 (de) * 2005-01-28 2006-08-03 Christian Rottmair Endkonturnahe Herstellung von graphitischen Formteilen mittels Pulverspritzguss

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1247523A (zh) * 1996-12-19 2000-03-15 联合讯号公司 由致密碳泡沫体制成的碳－碳复合材料
US6077464A (en) * 1996-12-19 2000-06-20 Alliedsignal Inc. Process of making carbon-carbon composite material made from densified carbon foam

Also Published As

Publication number Publication date
JP2010534306A (ja) 2010-11-04
US20100142876A1 (en) 2010-06-10
CN101827798A (zh) 2010-09-08
JP5354304B2 (ja) 2013-11-27
EP2173685A1 (de) 2010-04-14
EP2173685B1 (de) 2012-09-12
US8765032B2 (en) 2014-07-01
WO2009013181A1 (de) 2009-01-29
DE102007034487A1 (de) 2009-01-29

Similar Documents

Publication Publication Date Title
CN102218647B (zh) 一种金属塑性成形模具织构化自润滑处理方法
US20080206497A1 (en) Method of manufacturing sleeve for fluid-dynamic bearing and sleeve manufactured by the method
EP3039307B1 (en) Retainer
CN101205949B (zh) 动压轴承及转轴的制造方法
CN101827798B (zh) 用于生产滚动轴承的容纳多个滚动体的石墨护圈的方法
WO2011145693A1 (ja) 転がり軸受及びその製造方法
CN109666857B (zh) 一种具有极低摩擦系数的平面滑动轴承及其制备方法
US6776955B1 (en) Net shaped articles having complex internal undercut features
CN102913555A (zh) 粉末冶金复合含油轴承及其制造方法
CN109482872B (zh) 一种具有极低摩擦系数的无油平面滑动轴承及其制备方法
JP2008527166A (ja) 表面緻密化粉末金属部品を製造する方法
JP5955498B2 (ja) 動力伝達部品の製造方法
US11105369B2 (en) Method of producing composite component having brass or bronze using sinter fit
EP3088106A1 (en) Machine component using powder compact and method for producing same
DE102014214957A1 (de) Lagerring und Verfahren zur Herstellung eines Lagerrings
KR100644198B1 (ko) 세그먼트 소결재를 이용한 미끄럼베어링
KR20170123176A (ko) 인서트 베어링 캡의 제조방법
DE102011083861A1 (de) Lagervorrichtung und Verfahren
CN105524418A (zh) 钛酸钾晶须增强peek树脂及其制备方法
CN108561432B (zh) 一种耐高温直线轴承及其加工方法
JP5329789B2 (ja) 含油熱可塑性合成樹脂成形物の製造方法
KR20060124173A (ko) 리니어 부싱용 일체형 볼 리테이너 제조방법 및 그제조방법에 의하여 제작된 일체형 리테이너
Hanejko et al. Warm Die Compaction of a High Density Crankshaft Sprocket
WO2013045614A1 (de) Gleitringdichtungsring und verfahren
EP4282559A1 (de) Verfahren zum herstellen eines hybridbauteils und entsprechendes hybridbauteil

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C53 Correction of patent of invention or patent application
CB02 Change of applicant information

Address after: German Herzogenaurach

Applicant after: SCHAEFFLER TECHNOLOGIES AG & CO. KG

Address before: German Herzogenaurach

Applicant before: SCHAEFFLER TECHNOLOGIES GmbH & Co.KG

C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: SCHAEFFLER FIFTH INVESTMENT MANAGEMENT GMBH + CO.,

Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH + CO. KG

Effective date: 20150731

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee

Owner name: SCHAEFFLER TECHNOLOGIES GMBH + CO. KG

Free format text: FORMER NAME: SCHAEFFLER FIFTH INVESTMENT MANAGEMENT GMBH + CO., KG

Owner name: SCHAEFFLER TECHNOLOGY GMBH + CO. KG

Free format text: FORMER NAME: SCHAEFFLER TECHNOLOGIES GMBH + CO. KG

CP01 Change in the name or title of a patent holder

Address after: German Herzogenaurach

Patentee after: SCHAEFFLER TECHNOLOGIES GmbH & Co.KG

Address before: German Herzogenaurach

Patentee before: Fifth Schaeffler investment management GmbH & Co.KG

Address after: German Herzogenaurach

Patentee after: SCHAEFFLER TECHNOLOGIES AG & CO.KG

Address before: German Herzogenaurach

Patentee before: SCHAEFFLER TECHNOLOGIES GmbH & Co.KG

TR01 Transfer of patent right

Effective date of registration: 20150731

Address after: German Herzogenaurach

Patentee after: Fifth Schaeffler investment management GmbH & Co.KG

Address before: German Herzogenaurach

Patentee before: SCHAEFFLER TECHNOLOGIES AG & CO. KG

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130102

Termination date: 20190715

CF01 Termination of patent right due to non-payment of annual fee