CN107186446A - A kind of drill jar shaft core production technology - Google Patents
A kind of drill jar shaft core production technology Download PDFInfo
- Publication number
- CN107186446A CN107186446A CN201710538072.5A CN201710538072A CN107186446A CN 107186446 A CN107186446 A CN 107186446A CN 201710538072 A CN201710538072 A CN 201710538072A CN 107186446 A CN107186446 A CN 107186446A
- Authority
- CN
- China
- Prior art keywords
- shaft core
- steps
- green body
- crude green
- production technology
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
Abstract
The invention discloses a kind of drill jar shaft core production technology, comprise the following steps：A1. the carbon steel blank of respective quality size is chosen according to the shaft core size to be made, and blank is placed in heating furnace is heated to more than 1200 DEG C, and is kept for half an hour；A2. it is positioned over after A1 steps blank is taken out on hydraulic press or hot headers and deformation is processed by pressure, until processing shaft core crude green body, and grey cooling is buried into the progress of shaft core crude green body, eliminate the gaseous impurity in crude green body；A3. the shaft core crude green body after being cooled down in A2 steps is made annealing treatment, and be machined out according to design drawing, obtain the shaft core of smooth complete profile；A4. increase surface roughness processing will be carried out in A3 steps at gained shaft core axle journal, and one layer of antifriction alloy is added in journal surface.Product quality can be improved by changing manufacturing process using the present invention.
Description
Technical field
The present invention relates to shaft drill jumbo technical field, more particularly to a kind of drill jar shaft core production technology.
Background technology
In the prior art, in drillng operation, due to the complicated (modeling on stratum in such as cave-in, bore hole of geological structure
Property flowing and extrude), technical measures it is improper (such as termination of pumping overlong time, bit balling), the bit freezing it occur frequently that drilling tool is hampered, shake
It is to release one of effective tool of lock of tool drilling to hit device.When needing to hit operation on bumper jar, apply enough prestretchings on ground
Power, instrument internal locking mechanism unblock discharges drill string energy storage, and bumper jar block stamp hits anvil block, is stored in the elongation strain in drill string
Kinetic energy can be rapidly transformed into, and stuck point is delivered in the form of stress wave, makes to produce one at stuck point considerably beyond pretension
Tension force, makes to be slid upwards by bit freezing post.By multiple jarring, departed from stuck point region by bit freezing post.
Existing drilling jar all can according to carrying out chromium plating process the need for operating mode at axle journal, but chromium coating due to
The bond strength of matrix is relatively low, and coating ruptures under the reciprocation of corrosive medium and fatigue stress.Chromium coating at this after rupture
Galvanic corrosion occurs for interface, and then causes chromium coating part or large area to be peeled off, and causes drilling jar to be scrapped.
The content of the invention
The present invention solves the technical problem of a kind of drill jar shaft core production technology is provided, manufactured by changing
Technique, improves product quality.
To solve above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
A kind of drill jar shaft core production technology, it is characterised in that comprise the following steps：
A1. the carbon steel blank of respective quality size is chosen according to the shaft core size to be made, and blank is placed on heating furnace
In be heated to more than 1200 DEG C, and kept for half an hour；
A2. it is positioned over after A1 steps blank is taken out on hydraulic press or hot headers and deformation is processed by pressure, until processing
Go out shaft core crude green body, and grey cooling is buried into the progress of shaft core crude green body, eliminate the gaseous impurity in crude green body；
A3. the shaft core crude green body after being cooled down in A2 steps is made annealing treatment, and be machined out according to design drawing, obtain light
The shaft core of sliding complete profile；
A4. increase surface roughness processing will be carried out in A3 steps at gained shaft core axle journal, and it is resistance in one layer of journal surface addition
Break-in gold.
Further, the antifriction alloy in the A4 steps is cobalt-based antifriction alloy, and the cobalt-based antifriction alloy presses quality hundred
Ratio is divided to include Cr:30~33%, W:5~7.5%, Mo:2~2.6, Ni：0.5~1%, Mn：0.2~0.6%, Si：2~3%, Fe:1
~2%, B:1~2%, remaining is Co.
Further, the cobalt-based antifriction alloy is passed through by by each component grind into powder and being mixed into alloy powder
Laser is by alloy powder cladding in journal surface.
Further, fixed rate movement laser during the cladding operation, and keep more than cladding thickness 0.8mm.
The beneficial effects of the invention are as follows：The situation of prior art is different from, the present invention is passed through by hot pier forming technique
Bury the form of ash cooling to process shaft core crude green body, effectively increase the density of shaft core, and remove the gas in hydrogen, reduction shaft core
Impurity.And have cobalt-based antifriction alloy by laser melting coating at axle journal, effectively strengthen the anti-wear performance of shaft core, improve the product longevity
Life.
Embodiment
Specific embodiment is described further to the present invention below.
A kind of drill jar shaft core production technology, comprises the following steps：
A1. the carbon steel blank of respective quality size is chosen according to the shaft core size to be made, and blank is placed on heating furnace
In be heated to more than 1200 DEG C, and kept for half an hour；
A2. it is positioned over after A1 steps blank is taken out on hydraulic press or hot headers and deformation is processed by pressure, until processing
Go out shaft core crude green body, and grey cooling is buried into the progress of shaft core crude green body, eliminate the gaseous impurity in crude green body；
A3. the shaft core crude green body after being cooled down in A2 steps is made annealing treatment, and be machined out according to design drawing, obtain light
The shaft core of sliding complete profile；
A4. increase surface roughness processing will be carried out in A3 steps at gained shaft core axle journal, and it is resistance in one layer of journal surface addition
Break-in gold.Antifriction alloy is cobalt-based antifriction alloy, and the cobalt-based antifriction alloy includes Cr by mass percentage:30~33%, W:5~
7.5%、Mo:2~2.6, Ni：0.5~1%, Mn：0.2~0.6%, Si：2~3%, Fe:1~2%, B:1~2%, remaining is Co.Cobalt
Based wear-resistant alloy is by by each component grind into powder and being mixed into alloy powder, by laser by alloy powder cladding in axle
Neck surface.
Keep power in more than 4500W during the cladding operation, spot diameter 3.6mm, fixed rate moves laser, and
Keep more than cladding thickness 0.8mm.
Shaft core as obtained by aforesaid operations should carry out jarring experiment, and emphasis detects the abrasion feelings of axle journal after jarring
Condition, and antifriction alloy laser melting coating under 4500W power effect, if there is more apparent abrasion, when producing in batches in the later stage,
Laser power need to be improved.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize invention
Equivalent structure or equivalent flow conversion that description is made, or directly or indirectly it is used in other related technical fields,
It is included within the scope of the present invention.
Claims (4)
1. a kind of drill jar shaft core production technology, it is characterised in that comprise the following steps：
A1. the carbon steel blank of respective quality size is chosen according to the shaft core size to be made, and blank is placed on heating furnace
In be heated to more than 1200 DEG C, and kept for half an hour；
A2. it is positioned over after A1 steps blank is taken out on hydraulic press or hot headers and deformation is processed by pressure, until processing
Go out shaft core crude green body, and grey cooling is buried into the progress of shaft core crude green body, eliminate the gaseous impurity in crude green body；
A3. the shaft core crude green body after being cooled down in A2 steps is made annealing treatment, and be machined out according to design drawing, obtain light
The shaft core of sliding complete profile；
A4. increase surface roughness processing will be carried out in A3 steps at gained shaft core axle journal, and it is resistance in one layer of journal surface addition
Break-in gold.
2. drill jar shaft core production technology according to claim 1, it is characterised in that wear-resisting in the A4 steps
Alloy is cobalt-based antifriction alloy, and the cobalt-based antifriction alloy includes Cr by mass percentage:30~33%, W:5~7.5%, Mo:2~
2.6、Ni：0.5~1%, Mn：0.2~0.6%, Si：2~3%, Fe:1~2%, B:1~2%, remaining is Co.
3. drill jar shaft core production technology according to claim 2, it is characterised in that the cobalt-based antifriction alloy leads to
Cross each component grind into powder and be mixed into alloy powder, by laser by alloy powder cladding in journal surface.
4. drill jar shaft core production technology according to claim 3, it is characterised in that fixed during the cladding operation
Speed moves laser, and keeps more than cladding thickness 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538072.5A CN107186446A (en) | 2017-07-04 | 2017-07-04 | A kind of drill jar shaft core production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538072.5A CN107186446A (en) | 2017-07-04 | 2017-07-04 | A kind of drill jar shaft core production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107186446A true CN107186446A (en) | 2017-09-22 |
Family
ID=59880365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710538072.5A Pending CN107186446A (en) | 2017-07-04 | 2017-07-04 | A kind of drill jar shaft core production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107186446A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530592A (en) * | 2018-11-30 | 2019-03-29 | 攀枝花市科发机械制造有限公司 | A kind of high speed steel shaft forging technology |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102453894A (en) * | 2010-10-26 | 2012-05-16 | 沈阳大陆激光技术有限公司 | Method for preparing wear resistant coating at jar-while-drilling journal position |
| CN103737273A (en) * | 2013-12-31 | 2014-04-23 | 武汉团结点金激光科技有限公司 | Manufacturing technology of novel hobbing cutter with laser cladding WC wear-resistant coating |
-
2017
- 2017-07-04 CN CN201710538072.5A patent/CN107186446A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102453894A (en) * | 2010-10-26 | 2012-05-16 | 沈阳大陆激光技术有限公司 | Method for preparing wear resistant coating at jar-while-drilling journal position |
| CN103737273A (en) * | 2013-12-31 | 2014-04-23 | 武汉团结点金激光科技有限公司 | Manufacturing technology of novel hobbing cutter with laser cladding WC wear-resistant coating |
Non-Patent Citations (4)
| Title |
|---|
| 于泓: "《机械工程材料》", 30 September 2014 * |
| 宣天鹏: "《表面工程技术的设计与选择》", 31 May 2011 * |
| 张克义等: "《金工实习》", 31 August 2012 * |
| 杜则裕: "《材料焊接科学基础》", 30 September 2012 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530592A (en) * | 2018-11-30 | 2019-03-29 | 攀枝花市科发机械制造有限公司 | A kind of high speed steel shaft forging technology |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |
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| RJ01 | Rejection of invention patent application after publication |