CN2450368Y - Roller bit with surface coated with ceramic layer - Google Patents
Roller bit with surface coated with ceramic layer Download PDFInfo
- Publication number
- CN2450368Y CN2450368Y CN 00230967 CN00230967U CN2450368Y CN 2450368 Y CN2450368 Y CN 2450368Y CN 00230967 CN00230967 CN 00230967 CN 00230967 U CN00230967 U CN 00230967U CN 2450368 Y CN2450368 Y CN 2450368Y
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- CN
- China
- Prior art keywords
- ceramic coating
- gear wheel
- tooth wheel
- utility
- model
- 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
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Abstract
The utility model relates to a tooth wheel bit for the technical field of the drilling of petroleum, geology, etc., particularly a tooth wheel having a surface coated with a ceramic coating layer. The utility model comprises a steel base body of a tooth wheel, and is characterized in that the external surface of the steel base body of a tooth wheel is coated with a ceramic coating layer; the ceramic coating layer is formed by the spray or the brush coat of soft ceramic coating materials; the thickness is 0.1-0.2MM. The utility model can cause the wear-resistant and the anti-corrosion performance of the tooth wheel to obtain further enhancement in order to adapt to the requirements of modern drilling technology.
Description
The utility model relates to a kind of rock bit that is used for probing fields such as oil, geology, relates in particular to the gear wheel that a kind of surface is covered with ceramic coating.
Rock bit is made of gear wheel and bit leg, owing to gear wheel is participated in the cutting of rock stratum directly and dashed cutter, thereby requires it that very high wear-resisting and erosive wear resistance is arranged.At present, only carburizing and quenching being carried out on the surface of gear wheel usually handles.Development along with modern drilling technology, big discharge capacity, high pump pressure drilling parameter have been begun to adopt, under this condition of work, existing gear wheel surface has been difficult to adapt to the requirement of above-mentioned drilling parameter, thereby gear wheel teeth roots matrix appears by early stage erosion, so that cause that insert cone falls drill bit failure phenomenons such as tooth, steel-tooth cone broken teeth, is had a strong impact on the Acceptable life of rock bit.
The purpose of this utility model is the deficiency that exists at above-mentioned prior art and the gear wheel that provides a kind of surface to be covered with ceramic coating, and it can effectively improve the wear-resisting erosion resistance performance on gear wheel surface.
The purpose of this utility model is realized by following technical scheme: include the gear wheel matrix 3 of a steel, its difference is to be coated with one deck ceramic coating 2 at the external surface of steel cone matrix.
Press such scheme, ceramic coating is formed by flexible ceramic coating spraying or brushing, and thickness is 0.1-0.2mm.
Good effect of the present utility model is to apply the last layer ceramic coating on the basis of the original external surface of gear wheel, because hardness and corrosion resistance that ceramic materials itself is had, make the gear wheel that scribbles this coating possess good wear-resisting erosion resistance performance is arranged, the abrasion-resistance of gear wheel can further strengthen, to adapt to the needs of modern drilling technology.
Fig. 1 is the sectional drawing of an embodiment of the utility model.
Further specify embodiment of the present utility model below in conjunction with accompanying drawing, include the gear wheel matrix 2 of a steel, the gear wheel matrix surface is handled through carburizing and quenching earlier, and generating has carburizing and quenching layer 1, applies one deck ceramic coating 3 at the external surface of gear wheel matrix more thereafter.The thickness of ceramic coating is 0.1-0.2mm, and by flexible ceramic coating spraying or brush and form, flexible ceramic coating is combined by ceramic powders and epoxy resin and catalyst by proportion, and wherein ceramic powders content accounts for 90%.
Implementation method of the present utility model is: earlier with fully vibration and stirring after each batch mixes; guarantee to mix fully; thereafter deployed coating is directly brushed or is sprayed on the finished product gear wheel surface, under normal temperature condition, get final product through the dry solidification more than 10 hours.Spraying or brushing can spray at twice or brush and finish, and coat the thick one deck of about 0.05-0.15mm earlier, and after solidifying in 30-40 minute, intersection sprays or brushes the second layer again, can reach better effect like this.
Claims (4)
1, a kind of surface is covered with the gear wheel of ceramic coating, includes the gear wheel matrix (3) of a steel, it is characterized in that being coated with one deck ceramic coating (2) at the external surface of steel cone matrix.
2, be covered with the gear wheel of ceramic coating by the described surface of claim 1, it is characterized in that ceramic coating is formed by flexible ceramic coating spraying or brushing, thickness is 0.1-0.2mm.
3, be covered with the gear wheel of ceramic coating by claim 1 or 2 described surfaces, it is characterized in that flexible ceramic coating is combined by ceramic powders and epoxy resin and catalyst by proportion.
4, be covered with the gear wheel of ceramic coating by claim 1 or 2 described surfaces, it is characterized in that in the external surface generation earlier of gear wheel matrix carburizing and quenching layer (1) being arranged, the external surface at the gear wheel matrix applies one deck ceramic coating (3) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230967 CN2450368Y (en) | 2000-09-29 | 2000-09-29 | Roller bit with surface coated with ceramic layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230967 CN2450368Y (en) | 2000-09-29 | 2000-09-29 | Roller bit with surface coated with ceramic layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2450368Y true CN2450368Y (en) | 2001-09-26 |
Family
ID=33593972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00230967 Expired - Lifetime CN2450368Y (en) | 2000-09-29 | 2000-09-29 | Roller bit with surface coated with ceramic layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2450368Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518469B (en) * | 2009-04-02 | 2012-02-29 | 四川大学 | Wear-bionic nano-ceramic composite artificial tooth and method for preparing same |
-
2000
- 2000-09-29 CN CN 00230967 patent/CN2450368Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518469B (en) * | 2009-04-02 | 2012-02-29 | 四川大学 | Wear-bionic nano-ceramic composite artificial tooth and method for preparing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20100929 Granted publication date: 20010926 |