CN1161384A - Tech. for surface modification to easy-wear parts of machines for drilling or oil prodn. used in oil field - Google Patents
Tech. for surface modification to easy-wear parts of machines for drilling or oil prodn. used in oil field Download PDFInfo
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- CN1161384A CN1161384A CN 97100166 CN97100166A CN1161384A CN 1161384 A CN1161384 A CN 1161384A CN 97100166 CN97100166 CN 97100166 CN 97100166 A CN97100166 A CN 97100166A CN 1161384 A CN1161384 A CN 1161384A
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Abstract
In the present invention ion injection technology is adopted to treat and fortify the surface of mud vat jacket and hydraulic piston pump with N. C. Al, Ti ions to enhance the microhardness and corrusion resistance of treated workpiece and lengthen the service life.
Description
The present invention relates to a kind of material surface modifying technology, particularly a kind of oil drilling and the oil recovery modification technology on consumable accessory surface.
Use in the consumable accessory at existing oil drilling and oil recovery, as workpiece such as mud slurry pump cylinder jacket and hydraulic pump reversing assemblies, owing to be subjected to containing the comprehensive actions such as attrition and attack of sand (quartz sand etc.), high pressure drilling liquid or power fluid, its work-ing life is very short.Improve the cylinder sleeve method of life at present both at home and abroad and mainly contain two kinds: the one, adopt novel material, commonly used is the rich chromium cast iron bi-metal liner, from field experiment, life-span and quality are all more stable, but also there are microcosmic casting flaw and corrosion phenomenon inevitably, limited the further raising in workpiece life-span, also the lined ceramics pipe mud slurry pump cylinder jacket that is proposed just like Chinese patent 88216786.3, because complex manufacturing causes cost very high; The 2nd, utilize surface strengthening technology that workpiece surface is carried out intensive treatment, as internal surface coating commonly used, but, in industrial application, be restricted because coating is loosened, easily fallen.The boronising slush pump that Chinese patent 92206547.0 proposes, body material is medium carbon steel or medium carbon alloy steel because the hardness of matrix itself, wear-resisting, erosion resistance is low, has limited the raising in cylinder sleeve life-span.
Purpose of the present invention just is to provide a kind of resistance to wears, corrosion-resistant, long-life drilling well, recover the oil and to use consumable accessory.
For achieving the above object, the present invention has taked following technical scheme: it comprises the steps:
A) workpiece surface is dewatered with the ultrasonic cleaning degreasing by known technology, and oven dry;
B) to press known technology solid with certain angle for the workpiece after will cleaning according to the length of workpiece and surface condition
Fixed to ion implanter target platform, be evacuated down to (4～8) * 10
-5Pa,
It is characterized in that this technical scheme also comprises following processing step;
C) carry out ion implantationly with following parameters, and simultaneously the target platform carried out water cooling:
The injection ion that uses has: N
+, C
+, Ti
+, Cr
+, Al
+Each unit ion or polybasic ion combination;
Implantation dosage: (1～9) * 10
17Individual ion/cm
2
Inject energy: 30～120keV
Beam current density: 10～50 μ A/cm
2
Owing to adopt ion implantation technique, the nearly surface of workpiece produces a large amount of lattice imperfections, the secondary hardening phase, alloy nitrides etc. improve the workpiece surface microhardness of treated mistake greatly, can bring up to HV780 by original HV540 as inner surface of cylinder liner hardness, the surface hardness of reversing assembly is brought up to HV1763 by original HV900～1100, and erosion resistance has improved 81.9%, improved work-ing life more than 1～3 times, had very high economic benefit and social benefit.
Below in conjunction with drawings and Examples the present invention is described in further detail.
Fig. 1 is an implanter structural representation of the present invention.
Embodiment 1: use N
+Ion pair rich chromium cast iron bimetal mud slurry pump cylinder jacket internal surface carries out the unit and injects.In the mud slurry pump cylinder jacket steel matrix, be bumped into the rich chromium cast iron cylinder body, make bi-metal liner, carry out following steps again as ion-implanted surface-modified layer:
A) to cylinder sleeve routinely technology carry out ultrasonic cleaning with metal cleaner:
B) by known technology workpiece is fixed on the water cooled target platform of vacuum chamber, is evacuated down to 4～8 * 10
-5Pa;
C) in ion implanter, feed N
2Gas, make the N of generation
+Bundle is aimed at the mud slurry pump cylinder jacket internal surface, makes the rotation of target platform simultaneously, evenly injects its surface, and adds water cooling.Carry out N with following parameters
+Inject:
Inject energy: 75keV
Implantation dosage: 3.7 * 10
17N
+/ cm
2
Beam current density: 15 μ A/cm
2Injection length can be released by implantation dosage with known formula, and the following examples are identical.
Embodiment 2: use N
+And Ti
+It is as follows that ion carries out double base ion implantation technology parameter to the mud slurry pump cylinder jacket of embodiment 1 simultaneously, and other is with embodiment 1:
Energy: 75keV N
+
30keV Ti
+
Dosage: 2.6 * 10
17N
+/ cm
2.
1.0×10
17Ti
+/CM
2
Embodiment 3: use Ti
+The cylinder sleeve of embodiment 1 is carried out the unit inject, processing parameter is as follows, and other are with embodiment 1:
Inject energy: 35KeV
Dosage: 4 * 10
17Ti
+/ cm
2
Embodiment 4: use N
+The unit is carried out on the hydraulic pump reversing assembly surface of 38CrMoAl nitrogenize structure iron injects,
A) with the spool of reversing assembly, guiding valve surfaces externally and internally and valve interior surface carry out ultrasonic cleaning, and degreasing dewaters and dries,
B) one of them workpiece is fixed on the vacuum chamber water cooled target platform,, presses the certain angle [alpha] of known technology inclination, be evacuated down to (4～8) * 10 according to the size of injecting the surface
-5Pa.
C) ion implanter is by going into N
2Gas, carry out ion implantation to workpiece surface with following parameters:
Energy: 80keV
Dosage: 7 * 10
17N
+/ cm
2
Beam current density: 15 μ A/cm
2
D) repeat above-mentioned steps, respectively spool, guiding valve surfaces externally and internally and valve interior surface are carried out N
+Ion implantation.
Embodiment 5: with C
+, Ti
+Double base carries out ion implantation to embodiment 4 described reversing assemblies:
Energy: 40keV, C
+
35keV，Ti
+
Dosage: 3 * 10
17C
+/ cm
2
9×10
17Ti
+/cm
2
Embodiment 6: with Ti
+, Cr
+Double base ion pair embodiment 4 described reversing assemblies carry out ion implantation:
Energy: 35keV, Ti
+
40keV，Cr
+
Dosage: 2 * 10
17Ti
+/ cm
2
2 * 10
17Cr
+/ cm
2Embodiment 7: with Ti
+, Al
+Double base carries out ion implantation to the cylinder sleeve of embodiment 1:
Inject energy: 35keV Ti
+
120keV?Al
+
Implantation dosage: 2 * 10
17Ti
+/ cm
2
3×10
17 Al
+/cm
2
Claims (4)
1. an oil drilling recovers the oil and uses the consumable accessory process for modifying surface, and it comprises the steps:
A) workpiece surface is pressed the known technology ultrasonic cleaning, degreasing dewaters, and oven dry;
B) to press known technology solid with certain angle for the workpiece after will cleaning according to the length of workpiece and surface condition
Fixed to ion implanter target platform, be evacuated down to (4～8) * 10
-5Pa is characterized in that, this technology also comprises following processing step;
C) carry out ion implantationly with following parameters, and simultaneously the target platform carried out water cooling:
The injection ion that uses has: N
+, C
+, Ti
+, Cr
+, Al
+Each unit ion or polybasic ion combination;
Implantation dosage: (1～9) * 10
17Individual ion/cm
2
Inject energy: 30～120keV
Beam current density: 10～50 μ A/cm
2
2. modification technology as claimed in claim 1, it is characterized in that said workpiece substrate material is a rich chromium cast iron, the parameter when it is ion implantation is:
Select ion for use: the nitrogen ion
Implantation dosage: 3.7 * 10
17N
+/ cm
2
Energy: 75keV
Beam current density: 15 μ A/cm
2
3. modification technology as claimed in claim 2 is characterized in that said injection parameter is:
Select ion for use: nitrogen ion and titanium ion.
Implantation dosage: 2.6 * 10
17N
+/ cm
2
1.0×10
17 Ti+/cm
2
Inject energy: 75keVN
+/ cm
2
35keVTi
+/cm
2
4. modification technology as claimed in claim 1 is characterized in that said workpiece basic material is a nitrogenize 38CrMoAl structural alloy steel, and parameter was when it was ion implantation:
Select the ionic nitrogen ion for use
Implantation dosage: 7 * 10
17N
+/ cm
2
Energy: 75keV
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97100166 CN1161384A (en) | 1997-01-15 | 1997-01-15 | Tech. for surface modification to easy-wear parts of machines for drilling or oil prodn. used in oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97100166 CN1161384A (en) | 1997-01-15 | 1997-01-15 | Tech. for surface modification to easy-wear parts of machines for drilling or oil prodn. used in oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1161384A true CN1161384A (en) | 1997-10-08 |
Family
ID=5164834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97100166 Pending CN1161384A (en) | 1997-01-15 | 1997-01-15 | Tech. for surface modification to easy-wear parts of machines for drilling or oil prodn. used in oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1161384A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241394A (en) * | 2019-07-15 | 2019-09-17 | 中国人民解放军陆军装甲兵学院 | A kind of alloy steel surface reinforcement method and steel alloy |
-
1997
- 1997-01-15 CN CN 97100166 patent/CN1161384A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241394A (en) * | 2019-07-15 | 2019-09-17 | 中国人民解放军陆军装甲兵学院 | A kind of alloy steel surface reinforcement method and steel alloy |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) |