Low-friction sliding ring having an economical diamond coating

A technology of diamond layer and sealing ring, which is applied in engine sealing, metal material coating process, coating, etc., can solve problems such as bad bonding, diamond layer detachment, sealing ring damage, etc., and achieve long service life and excellent dry running The effect of the characteristic

Active Publication Date: 2013-08-21
EAGLEBURGMANN GERMANY GMBH &CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition to the extremely high production costs on the one hand, the disadvantage of such diamond-coated sealing rings is also a problem: due to poor bonding between the diamond layer of the sealing ring and the base body, there is detachment of the diamond layer, which causes the sealing ring to respond accordingly. possibility of damage
Furthermore, diamond-coated sealing rings have the problem that the diamond layer may completely detach from parts of the substrate

Method used

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  • Low-friction sliding ring having an economical diamond coating
  • Low-friction sliding ring having an economical diamond coating

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Effect test

Embodiment 1

[0030] Here the thickness of the diamond is measured by means of the beta backscattering method. The crystal size was measured by means of an optical microscope with a magnification of 1000 times. Determination of roughness R by means of white light interferometer aAnd the SP3 component was determined by means of Raman spectroscopy. The pore size and pore distance were determined by means of an optical microscope and the slit length and slit depth, respectively, by determining the distribution of the number of slits of ionically inclined cuts (cuts with a minimum cut length of 1 mm) made in the substrate 2 . The hardness of the substrate was determined by means of a Vickers hardness test and the defect specific gravity, defined as the area ratio of uncoated defects on the surface of the substrate to the diamond-applied surface, was determined by means of an optical microscope.

[0031] Therefore, according to the present invention, a uniform and permanent diamond coat...

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Abstract

The invention relates to a sliding ring for a floating ring seal, comprising a main body (2) having a diamond layer (3) which is applied to the main body (2) and is designed as a sliding surface, wherein the diamond layer (3) has a thickness (D) that is less than or equal to 4 [mu]m, in particular less than or equal to 3 [mu]m, in particular less than or equal to 2 [mu]m, particularly preferably approximately 1 [mu]m, and wherein the main body (2) has no cracks or only cracks that have a maximum longitudinal extension (L) of less than or equal to 5 [mu]m on a surface of the main body (2) or in the main body (2).

Description

technical field [0001] The invention relates to a low-friction sealing ring comprising an inexpensive diamond coating as sliding surface. Furthermore, the invention relates to a mechanical seal assembly comprising at least one sealing ring according to the invention. Background technique [0002] Diamond-coated sealing rings of various configurations are known from the prior art. Due to the diamond coating, the sealing ring has an extremely wear-resistant surface and excellent dry-running characteristics. In addition to the extremely high production costs on the one hand, the disadvantage of such diamond-coated sealing rings is also a problem: due to poor bonding between the diamond layer of the sealing ring and the base body, there is detachment of the diamond layer, which causes the sealing ring to respond accordingly. possibility of damage. In order to solve the above-mentioned problems, DE202007016868.3U1 has proposed a sealing ring comprising a matrix composed of two...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/34C23C16/27
CPCC23C16/27F16J15/3496F16J15/34F16J15/16
Inventor 约阿希姆·奥特斯凯克安德里亚斯·斯科鲁弗尔迪特尔·泽根拜因鲁道夫·康林格洛萨·斯卡弗马库斯·哈弗马库斯·阿姆甘迪特
Owner EAGLEBURGMANN GERMANY GMBH &CO KG
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