CN1689744A - Technique of intermediate frequency braze welding bore bit - Google Patents
Technique of intermediate frequency braze welding bore bit Download PDFInfo
- Publication number
- CN1689744A CN1689744A CN 200410020510 CN200410020510A CN1689744A CN 1689744 A CN1689744 A CN 1689744A CN 200410020510 CN200410020510 CN 200410020510 CN 200410020510 A CN200410020510 A CN 200410020510A CN 1689744 A CN1689744 A CN 1689744A
- Authority
- CN
- China
- Prior art keywords
- bore bit
- frequency
- soldering
- bit
- inductor
- 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.)
- Granted
Links
Landscapes
- Earth Drilling (AREA)
- General Induction Heating (AREA)
Abstract
The present invention relates to the technological process of brazing bore bit in metallurgical, mine and other industry, and bore bit of hard alloy is brazed with one middle frequency, rather than high frequency, inducing heater. One middle frequency generator or one middle frequency SCR power supply in the frequency of 1-8 KHz is adopted. The technological process of the present invention has homogeneous heating and high brazing quality, and the middle frequency heater has high capacity, high overload capacity, no influence on human body and communication network, relaxed cooling quality requirement and low maintenance cost.
Description
Technical field
The present invention relates to smelting, mine industry soldering bore bit technical field, particularly use brazing device carbide filler to be welded in the process of bore bit.
Background technology
Use the bore bit in the drilling tool at present in metallurgy, the mine industry, its process all adopts the process of high-frequency induction heating soldering bore bit, when promptly heating in the electromagnetic field of high frequency, utilize the scolder of fusion that the metal of two kinds of materials is connected, usually power frequency is 125～250 kilo hertzs of sesames, adopt the process of high frequency brazing bore bit to have following defective: high-frequency apparatus produces high-frequency electromagnetic wave excitation has damage for operating personnel's health, and aircraft, communication are had considerable influence; The high frequency power transmitting tube is the glass bulb utensil, must be demineralized water to the requirement of quality of cooling water, so water treatment expense height; The high-frequency apparatus single-machine capacity is little, and it is poor to bear overload capacity, and appliance component is fragile, the maintenance cost height; High-frequency heating frequency height, the depth of current penetration is little, when heating heavy in section bore bit, heat inhomogeneously, the top layer is easy to be crossed thermal oxide and produces top layer oxidation obscission, and the centre scolder is difficult for fusing, and the melting solder leakage easily takes place in the position, edge, influences the bore bit product quality.
Summary of the invention
The objective of the invention is to overcome the defective that the process of high frequency brazing bore bit exists, utilize brazing device, adopt the intermediate-frequency braze welding heating process, solved the carbide alloy edge preferably to the homogeneous heating at center and the homogeneous heating problem of carbide alloy and bore bit, the welding quality of drilling tool is significantly improved.
Process of the present invention is to use the soldering induction heating apparatus that carbide filler is welded in the process of bore bit, and the core of technical scheme is to adopt the intermediate-frequency braze welding heating process.From the operation principle of bore bit induction brazing, bore bit is a ferromagnetic material, and magnetic conductivity is better, and firing rate is fast; Critical piece on the bore bit is a hard alloy cutter, and the hard alloy cutter magnetic conductivity is poor, firing rate is slow, reduce the internal stress and the crackle of carbide alloy, bore bit and carbide alloy are wanted homogeneous heating simultaneously on the one hand, need to adopt less unit power, carbide alloy also needs homogeneous heating from the edge of inductor to the centre on the other hand, and the present invention selects for use intermediate-frequency braze welding bore bit process can satisfy above-mentioned requirements simultaneously.
The intermediate-frequency braze welding heater adopts intermediate frequency generator group or thyristor intermediate frequency electric source device, and the power frequency of soldering bore bit is controlled at 1000～8000 He Zhi.By to the cleaning oil removing of bore bit and carbide alloy, dry, smear welding agent, place scolder, the bore bit that will handle at last is placed in the Frequency Induction Heating coil, through energising, heating and melting, finish brazing process.The Frequency Induction Heating coil should adapt with the shape and size of bore bit, and the gap of inductor inwall and bore bit should generally about 10mm, flow on the inductor with the scolder that prevents to melt greater than 5mm.Inductor is generally formed also and can be made up of multi-thread circle by unicoil, and inductor can be formed single head, also can form double end or bull, is determined by the kind and the mode of production of product.
During the bore bit soldering of major diameter bore bit φ 50～70mm, can earlier inductor be placed on below the carbide alloy bottom, make the bore bit preheating after the heat conducting effect that excess temperature makes progress, make bore bit centre temperature give than without the bottom heat temperature much higher, at this moment again bore bit is placed the position of carbide alloy and is moved to inductor.The time of giving the solder fusing at the scolder at major diameter bore bit center, heat back and position, edge through the bottom accomplishes roughly synchronously like this, so the quality of soldering can be guaranteed.
The present invention compares with high frequency brazing bore bit process has following advantage:
1, middle frequency electromagnetic waves does not all have influence to human body and communication network;
2, intermediate-frequency braze welding heater place capacity is big, and it is strong to bear overload capacity, homogeneous heating, and the brazing quality particularly welding quality of major diameter bore bit significantly improves;
3, less demanding to quality of cooling water, maintenance cost is lower.
Embodiment
Below by specific implementation method the present invention is elaborated:
With cruciate flower bore bit, manual soldering is that example describes intermediate-frequency braze welding bore bit process.
1, earlier bore bit and carbide alloy are placed on cleaning and oil removing in gasoline or the nitro solvent, put into the drying box oven dry again, dry 80 ± 10 ℃;
2, place at bore bit and smear the pasty state welding agent that 1: 1 dewatering borax and boric acid add the absolute alcohol modulation again on the bottom land of carbide alloy and the cell wall;
3, smearing placement ormolu scolder on the bore bit bottom land of welding agent, then tungsten-cobalt hard alloy is inserted in the groove, smear welding agent above the carbide alloy again and place scolder;
4, the bore bit that will handle is placed in the Frequency Induction Heating coil, energising, heating and melting, finishes brazing process.
5, after good bore bit cooling to be brazed is located, should remove the welding agent on bore bit surface immediately, again bore bit be put into incubator, reduce thermal stress, continue slowly cooling.
Select BPS-100-8 type mechanical type frequency conversion unit and DGF-C-82 type mid frequency induction hardening control appliance for use, power frequency adopts 8000 He Zhi, provides following technological parameter:
Intermediate-frequency braze welding bore bit process parameter table
| Kind | The intermediate frequency generator parameter | The intermediate-frequency transformer turn ratio | Heat time heating time (second) | |||
| Voltage of intermediate frequency | Electric current of intermediate frequency | ??COSφ | Exciting current | |||
| φ 32mm bore bit double end inductor | ??600V | ??55A | Lag behind 0.96 | ??08A | ??26/1 | ??46～49 |
| φ 40mm bore bit double end inductor | ??750V | ??90A | Lag behind 0.97 | ??0.8A | ??26/1 | ??53～63 |
| φ 60mm bore bit single head inductor | ??650V | ??150A | Lag behind 0.9 | ??2.5A | ??26/1 | ??80～90 |
| φ 70mm bore bit single head inductor | ??700V | ??80A | Lag behind 0.97 | ??1A | ??26/1 | ??142～145 |
Claims (5)
1, the process that is used for metallurgy, mine industry soldering bore bit is to use the soldering induction heating apparatus that carbide filler is welded in the process of bore bit, it is characterized in that adopting the intermediate-frequency braze welding heating process.
2, in accordance with the method for claim 1, it is characterized in that adopting intermediate frequency generator group or thyristor intermediate frequency electric source device, the bore bit of handling is placed in the Frequency Induction Heating coil, finish brazing process through energising, heating and melting, the power frequency of soldering bore bit is controlled at 1000～8000 He Zhi.
3, according to claim 1 or 2 described methods, it is characterized in that selecting for use mechanical type frequency conversion unit and mid frequency induction hardening control appliance, for diameter is the bore bit of 32～70mm, power frequency is 8000 He Zhi, Control of Voltage is at 600～750V, electric current 55～150A, exciting current 0.8～2.5A, the intermediate-frequency transformer turn ratio 26/1, be 46～145 seconds heat time heating time.
4, in accordance with the method for claim 3, it is characterized in that the shape and size of Frequency Induction Heating coil and bore bit adapt, the gap of inductor inwall and bore bit is 5～10mm.
5, in accordance with the method for claim 3, when it is characterized in that the bore bit soldering for 50～70mm diameter, earlier inductor is placed the carbide alloy bottom to make bore bit give heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100205101A CN100358662C (en) | 2004-05-01 | 2004-05-01 | Technique of intermediate frequency braze welding bore bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100205101A CN100358662C (en) | 2004-05-01 | 2004-05-01 | Technique of intermediate frequency braze welding bore bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1689744A true CN1689744A (en) | 2005-11-02 |
| CN100358662C CN100358662C (en) | 2008-01-02 |
Family
ID=35345667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100205101A Expired - Fee Related CN100358662C (en) | 2004-05-01 | 2004-05-01 | Technique of intermediate frequency braze welding bore bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100358662C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008993A (en) * | 2012-11-29 | 2013-04-03 | 洛阳九久技术开发有限公司 | Manufacturing method of shield machine scraper |
| CN103032069A (en) * | 2012-10-22 | 2013-04-10 | 安徽省皖江机电设备制造有限公司 | Production method of cutting picks of coal mining machine |
| CN103572036A (en) * | 2013-10-31 | 2014-02-12 | 中国石油化工股份有限公司 | Tube bundle welding zone stress relief medium frequency heating equipment |
| CN104384700A (en) * | 2014-09-16 | 2015-03-04 | 沈阳飞机工业（集团）有限公司 | Welding machining method of hard alloy cutter blade |
| CN109282082A (en) * | 2018-11-23 | 2019-01-29 | 潜江新锐硬质合金工具有限公司 | A kind of needle-type throttle valve valve rod and its processing and forming technology |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150944Y (en) * | 1992-07-17 | 1993-12-29 | 山东工业大学 | Silicon control medium frequency induction furnace |
| CN1047819C (en) * | 1995-12-29 | 1999-12-29 | 山东阳谷电缆集团三山纤具厂 | Method for making chisel bit for drilling rock |
| JPH10296432A (en) * | 1997-05-02 | 1998-11-10 | Keiji Matsumoto | High frequency brazing method |
| JP3934848B2 (en) * | 2000-03-30 | 2007-06-20 | 三菱電機株式会社 | High frequency brazing method and brazing apparatus |
-
2004
- 2004-05-01 CN CNB2004100205101A patent/CN100358662C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032069A (en) * | 2012-10-22 | 2013-04-10 | 安徽省皖江机电设备制造有限公司 | Production method of cutting picks of coal mining machine |
| CN103032069B (en) * | 2012-10-22 | 2015-01-14 | 安徽省皖江机电设备制造有限公司 | Production method of cutting picks of coal mining machine |
| CN103008993A (en) * | 2012-11-29 | 2013-04-03 | 洛阳九久技术开发有限公司 | Manufacturing method of shield machine scraper |
| CN103572036A (en) * | 2013-10-31 | 2014-02-12 | 中国石油化工股份有限公司 | Tube bundle welding zone stress relief medium frequency heating equipment |
| CN104384700A (en) * | 2014-09-16 | 2015-03-04 | 沈阳飞机工业（集团）有限公司 | Welding machining method of hard alloy cutter blade |
| CN109282082A (en) * | 2018-11-23 | 2019-01-29 | 潜江新锐硬质合金工具有限公司 | A kind of needle-type throttle valve valve rod and its processing and forming technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100358662C (en) | 2008-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101448347B (en) | Method for manufacturing induction coil used for medium frequency induction heating | |
| CN106757001A (en) | The method and apparatus that electromagnetic agitation auxiliary carries out laser melting coating under a kind of pressure cooler environment | |
| CN107803593B (en) | high-frequency-laser wire filling composite welding device and method | |
| CN104191081B (en) | Device and its welding method for copper pipe in refrigeration equipment and Al pipe butt welding | |
| CN107052494B (en) | Device and method for improving wettability of material based on multi-field coupling | |
| CN102133669A (en) | Welding method for target and back plate | |
| CN104831018A (en) | Surface hardening process of marine crankshaft | |
| CN102796863A (en) | Method used for local postweld heat treatment of large-size steel casting after rewelding | |
| CN100358662C (en) | Technique of intermediate frequency braze welding bore bit | |
| CN102642067A (en) | Welding method of low-magnetic steel | |
| CN108188521A (en) | A kind of high-frequency induction heating method for welding of Mo Re alloys foil | |
| CN111215714B (en) | Non-contact ultrasonic brazing connection method for preparing quartz glass joint | |
| CN106312218B (en) | The method being locally quickly brazed using a kind of pulse current auxiliary from resistance heating device | |
| CN203936495U (en) | A kind of welding induction coil | |
| CN109530857B (en) | Thick wire single-power-supply shallow-fusion-depth efficient submerged arc automatic surfacing welding process method | |
| CN108356397B (en) | Large container corrosion-resistant layer wide-band-electrode surfacing method based on residual stress regulation | |
| CN104831019A (en) | Surface hardening equipment of marine crankshaft | |
| CN113042846B (en) | Variable length vacuum induction brazing furnace | |
| CN1701637A (en) | Method and device for thin plate article induction heating, and thin plate article | |
| CN110760841B (en) | Preparation method of amorphous nanocrystalline coating on aluminum alloy surface | |
| US4347661A (en) | Process of making electric assemblies | |
| CN212169326U (en) | Friction stir butt welding device for high-resistivity alloy | |
| CN107447080A (en) | A kind of quick, welded seam of aluminium alloy local stress relaxation method of low temperature | |
| CN201807810U (en) | Supersonic frequency brazing device | |
| CN114682883A (en) | Method for preheating before welding and stress relieving after welding of pulse current auxiliary type high-strength titanium alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20100501 |