CN1066205A - Cold galvanising complex body diamond head and manufacturing process thereof - Google Patents
Cold galvanising complex body diamond head and manufacturing process thereof Download PDFInfo
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- CN1066205A CN1066205A CN 91106974 CN91106974A CN1066205A CN 1066205 A CN1066205 A CN 1066205A CN 91106974 CN91106974 CN 91106974 CN 91106974 A CN91106974 A CN 91106974A CN 1066205 A CN1066205 A CN 1066205A
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- diamond
- plating
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- tungsten alloy
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Abstract
A kind of cold galvanising complex body diamond head and manufacturing process thereof belong to geology, boring tool field.With the drill bit that this law is produced, the diamond cast layer combines firmly with the carbon tungsten alloy mole; Diamond intensity and wear resisting property height; Because the different diamond cast layer of composite plating multilayer hardness, the drill bit of making can extensively adapt to creeping into of all kinds of stratum, is not prone to kerve; Bit gauge protection is effective.This law has been improved manufacturing process and has been proposed the first two nitroxylic acid activating treatment new technology of plating, need not increase equipment and does not raise the cost, and therefore has exploitation and is worth.
Description
The present invention relates to a kind of geological drilling tools field, exactly is cold galvanising complex body diamond head and manufacturing process thereof.This drill bit both be applicable to creep into strong, in, weak grinding stratum, be applicable to and creep into complete and hard-soft heterogeneous ground such as fragmentation to have wide spectrum drill bit function again.
The diamond head that uses roughly is divided into two classes with regard to its manufacturing process at present: a class is made with powder metallurgic method, the pickling process of for example colding pressing, hot pressing sintering method, pressureless impregnation method and electric spark sintering method etc.; Another kind of is to use the cold galvanising manufactured.With the diamond head of powder metallurgic method manufacturing have bit size accurately with protect advantages such as the footpath is effective, but relatively poor to the adaptability of layer variously, because of diamond in its manufacturing processed is subjected to the temperatures involved strength degradation.The cold galvanising diamond head is not because of being subjected to temperatures involved in manufacturing processed, diamond intensity does not descend, and manufacturing process is simple, and advantage is more, but exist bit size wayward, protect shortcomings such as footpath weak effect and bit life be short, can not adapt to creeping into of all kinds of stratum.
The purpose of this invention is to provide a kind of cold galvanising complex body diamond head and manufacturing process thereof, be intended to overcome above-mentioned deficiency, can extensively adapt to creeping into of all kinds of Different Strata with the drill bit of this manufactured, hour efficient height is protected the effective and long working life in footpath.
The object of the present invention is achieved like this: as shown in Figure 1, by cold galvanising diamond cast layer (4) and have carbon tungsten alloy mole (3) mortise that glomerocryst (2) strengthen to protect the footpath with the circle that powder metallurgic method is cast and make cold galvanising complex body diamond head, make a circle in the end of Drill Steel body (1) with powder metallurgic method (for example pressure sintering) earlier and have the accurate in size carbon tungsten alloy mole (3) that glomerocryst (2) strengthens protecting the footpath, upward plate the different diamond cast layer (4) of multilayer hardness, uniform diamond (5) in the diamond cast layer (4) at carbon tungsten alloy mole (3) with the cold galvanising method; Also scrub repeatedly through two nitroxylic acid activation treatment carbon tungsten alloy moles (3) before electroplating with the mobile clean water, can make the different diamond cast layer (4) of multilayer hardness through changing groove low temperature composite plating, the difference of hardness between different diamond cast layer (4) adjacent two layers of this multilayer hardness is H
RC5～H
RC15; Concrete technological operation flow process is as follows: make diamond head work in-process → routine plating pre-treatment → one time natal etch activation → flowing water with powder metallurgic method to scrub → secondary natal etch activation → flowing water scrubs → distilled water flushing → chargedly go into groove → strike plating → sky and plate shaping mould inside and outside adorning → repeatedly change groove plating → dehydrogenation processing → finished product.
Advantage of the present invention is:
1, the diamond cast layer combines firmly with the carbon tungsten alloy mole;
2, because cold galvanising is not subjected to temperatures involved, diamond intensity and wear resistance do not reduce;
3, owing to the different diamond cast layer of composite plating multilayer hardness, this drill bit can extensively adapt to creeping into of all kinds of stratum, is not prone to heel and toe wear;
4, this bit gauge protection is effective, and hour efficient height and life-span are long;
5, improved manufacturing process, proposed the first two nitroxylic acid activating treatment new technology of plating, but need not increase new installation and unlikely raising the cost.
Fig. 1 is the synoptic diagram of cold galvanising complex body diamond head; Fig. 2 is the side-view of Fig. 1.
1-Drill Steel body,
The 2-dimond synneusis,
3-carbon tungsten alloy mole,
4-diamond cast layer,
The uniform diamond of 5-.
Embodiment:
According to the drill bit specification with No. 45 steel pipe machined steel chaeta bases, make a circle in the end of this steel body (1) with powder metallurgic method and have the carbon tungsten alloy mole (3) that glomerocryst (2) strengthens protecting the footpath, size of this mole (3) and the inside and outside footpath of drill bit coincide, highly be 10～12 millimeters, mole (3) hardness is H
RC40～H
RC45, stud with 15～45 gauge diamond glomerocrysts (2) in the mole (3), press drill bit thread standard processing connecting thread, then to medial and lateral carry out fining-off complex body diamond head work in-process, after this undertaken by following technical process:
Complex body diamond head work in-process → routine plating pre-treatment (comprising hydrochloride derusting and electrochemical deoiling dirt etc.) → natal etch activation is (with 68% analytical pure nitric acid, soaked 2 minutes, carry up and down 4 times) → flowing water scrubs → and (etch depth is controlled at 2～3 millimeters to the activation of secondary natal etch, frequently carry up and down) → flowing water scrubs → distilled water flushing → chargedly go into groove → strike plating → sky plating, the inside and outside shaping mould of dress → repeatedly change groove plating → dehydrogenation processing → finished product.
Claims (1)
1, a kind of cold galvanising complex body diamond head and manufacturing process thereof by the diamond cast layer and have the carbon tungsten alloy mole mortise that glomerocryst strengthen to protect the footpath with the circle that powder metallurgic method is cast and make, is characterized in that:
A, go up at carbon tungsten alloy mole (3) and to plate the different diamond cast layer (4) of multilayer hardness with the cold galvanising method;
Also scrub repeatedly through two nitroxylic acid activation treatment carbon tungsten alloy moles (3) before b, the plating with the mobile clean water;
C, technology: make diamond head work in-process → routine plating pre-treatment → one time natal etch activation → flowing water with powder metallurgic method to scrub → secondary natal etch activation → flowing water scrubs → distilled water flushing → chargedly go into groove → strike plating → sky and plate shaping mould inside and outside adorning → repeatedly change groove plating → dehydrogenation processing → finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106974 CN1066205A (en) | 1991-04-18 | 1991-04-18 | Cold galvanising complex body diamond head and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106974 CN1066205A (en) | 1991-04-18 | 1991-04-18 | Cold galvanising complex body diamond head and manufacturing process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1066205A true CN1066205A (en) | 1992-11-18 |
Family
ID=4908344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91106974 Pending CN1066205A (en) | 1991-04-18 | 1991-04-18 | Cold galvanising complex body diamond head and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1066205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101137816B (en) * | 2005-01-18 | 2011-06-01 | 格鲁佩佛迪亚公司 | Bit for drilling a hole |
| CN103551793A (en) * | 2013-10-29 | 2014-02-05 | 西南石油大学 | Explosion-proof enhancing diamond compact and tungsten carbide matrix welding method |
-
1991
- 1991-04-18 CN CN 91106974 patent/CN1066205A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101137816B (en) * | 2005-01-18 | 2011-06-01 | 格鲁佩佛迪亚公司 | Bit for drilling a hole |
| CN103551793A (en) * | 2013-10-29 | 2014-02-05 | 西南石油大学 | Explosion-proof enhancing diamond compact and tungsten carbide matrix welding method |
| CN103551793B (en) * | 2013-10-29 | 2016-05-11 | 西南石油大学 | A kind of diamond compact of anti-cracking enhancing degree and tungsten carbide matrix welding method |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |