CN110857150A - Balancing weight for satellite and manufacturing process thereof - Google Patents
Balancing weight for satellite and manufacturing process thereof Download PDFInfo
- Publication number
- CN110857150A CN110857150A CN201810962694.5A CN201810962694A CN110857150A CN 110857150 A CN110857150 A CN 110857150A CN 201810962694 A CN201810962694 A CN 201810962694A CN 110857150 A CN110857150 A CN 110857150A
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- tungsten alloy
- low
- grade tungsten
- balancing weight
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 229910001080 W alloy Inorganic materials 0.000 claims abstract description 80
- 238000005245 sintering Methods 0.000 claims abstract description 19
- 239000007791 liquid phase Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000010079 rubber tapping Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Radar, Positioning & Navigation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a balancing weight for a satellite, wherein a placing hole is formed in a high-grade tungsten alloy balancing weight body, a low-grade tungsten alloy column body is arranged in the placing hole, and a threaded hole is formed in the low-grade tungsten alloy column body. The manufacturing process comprises the steps of forming a hole in the high-grade tungsten alloy balancing weight, plugging the hole into the low-grade tungsten alloy column, then performing liquid phase sintering, and forming a threaded hole in the position of the original low-grade tungsten alloy column. The invention has the advantages that: through open on high brand tungsten alloy balancing weight body and put the hole, fill in low brand tungsten alloy cylinder, and high brand tungsten alloy balancing weight body and low brand tungsten alloy cylinder, both fuse into an organic whole after the liquid phase sintering, it is lower slightly to put its hardness in the position of former low brand tungsten alloy cylinder, set up the screw hole of fixed usefulness in its position, improve the success rate of opening the fixed screw hole of using on the balancing weight, greatly reduced the rejection rate, simultaneously can effectually guarantee that the performance of whole balancing weight does not descend.
Description
Technical Field
The invention relates to a balancing weight for a satellite and a manufacturing process thereof.
Background
The parts that use on the satellite are owing to need bear complicated environment in the universe, consequently, the performance requirement to the product is extremely high, the balancing weight that uses on the satellite, all adopt high-grade tungsten alloy to make, because high-grade tungsten alloy's hardness is very high, and need beat the screw hole on the balancing weight and be used for being connected with other parts, its screw hole generally is M6 × 12 specification, this requirement to the tapping cutter is extremely high, the condition that the tapping cutter fracture appears in the balancing weight very easily, make whole balancing weight scrap, cause very big economic loss.
Disclosure of Invention
The invention aims to provide a satellite balancing weight and a manufacturing process thereof, which can effectively solve the problem that a tapping cutter is easy to break when a small-size threaded hole is formed in the conventional balancing weight.
In order to solve the technical problems, the invention is realized by the following technical scheme: a balancing weight for a satellite comprises a high-grade tungsten alloy balancing weight body and a low-grade tungsten alloy cylinder, wherein a placing hole is formed in the high-grade tungsten alloy balancing weight body, the low-grade tungsten alloy cylinder is arranged in the placing hole, and a threaded hole is formed in the low-grade tungsten alloy cylinder.
A manufacturing process of a balancing weight for a satellite sequentially comprises the following steps:
A. firstly, manufacturing a high-grade tungsten alloy balancing weight body and a low-grade tungsten alloy column body according to a normal process;
B. then, a placing hole which is equal to the straight line of the low-grade tungsten alloy column body is rotated on the high-grade tungsten alloy balancing weight body, the low-grade tungsten alloy column body is in interference fit with the placing hole, and the hole depth is consistent with the height of the low-grade tungsten alloy column body;
C. the low-grade tungsten alloy column is plugged into the placing hole, then liquid phase sintering is carried out, and the high-grade tungsten alloy balancing weight body and the low-grade tungsten alloy column are integrated into a whole;
D. and a threaded hole is formed in the position of the original low-grade tungsten alloy column.
Preferably, the hardness of the high-grade tungsten alloy balancing weight is 90-95 HRC.
Preferably, the hardness of the low-grade tungsten alloy cylinder is 70-80 HRC.
Preferably, the liquid phase sintering temperature is 1300-1450 ℃, and the sintering time is 40-50 minutes.
Compared with the prior art, the invention has the advantages that: through open on high brand tungsten alloy balancing weight body and put the hole, fill in low brand tungsten alloy cylinder, and high brand tungsten alloy balancing weight body and low brand tungsten alloy cylinder, both fuse into an organic whole after the liquid phase sintering, it is lower slightly to put its hardness in the position of former low brand tungsten alloy cylinder, set up the screw hole of fixed usefulness in its position, improve the success rate of opening the fixed screw hole of using on the balancing weight, greatly reduced the rejection rate, simultaneously can effectually guarantee that the performance of whole balancing weight does not descend.
Drawings
Fig. 1 is a schematic structural diagram of a satellite counterweight according to the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1, an embodiment of a satellite counterweight according to the present invention includes a high-grade tungsten alloy counterweight body 1 and a low-grade tungsten alloy cylinder 2, wherein a placing hole is formed on the high-grade tungsten alloy counterweight body 1, the low-grade tungsten alloy cylinder 2 is disposed in the placing hole, and a threaded hole 3 is formed on the low-grade tungsten alloy cylinder 2.
The process for manufacturing the balancing weight sequentially comprises the following steps:
A. firstly, manufacturing a high-grade tungsten alloy balancing weight body 1 and a low-grade tungsten alloy column body 2 according to a normal process;
B. then, turning a placing hole which is in the same straight line with the low-grade tungsten alloy column body 2 on the high-grade tungsten alloy balancing weight body 1, wherein the low-grade tungsten alloy column body 2 is in interference fit with the placing hole, and the depth of the hole is consistent with the height of the low-grade tungsten alloy column body 2;
C. the low-grade tungsten alloy column body 2 is plugged into the placing hole, then liquid phase sintering is carried out, and the high-grade tungsten alloy balancing weight body 1 and the low-grade tungsten alloy column body 2 are integrated into a whole;
D. a threaded hole 3 is arranged at the position of the original low-grade tungsten alloy column body 2.
The hardness of the high-grade tungsten alloy counterweight block body 1 is generally 90-95 HRC, the hardness of the low-grade tungsten alloy column body 2 is 70-80 HRC, the liquid phase sintering temperature is 1300-1450 ℃, the sintering time is 40-50 minutes, the specific time and temperature are determined according to the performance of the low-grade tungsten alloy column, the sintering temperature and the sintering time are both low when the hardness is low, the sintering temperature and the sintering time are both high when the hardness is high, a minimum M2 10 threaded hole can be punched on the original low-grade tungsten alloy column after liquid phase sintering, and if the high-grade tungsten alloy counterweight block body is directly punched, the minimum M8 10 threaded hole can be punched.
After liquid phase sintering, the high-grade tungsten alloy balancing weight body 1 and the low-grade tungsten alloy column body 2 are combined into a whole, and no boundary trace can be seen on the surface. Through open the hole of putting on high brand tungsten alloy balancing weight body 1, fill in low brand tungsten alloy cylinder 2, and high brand tungsten alloy balancing weight body 1 and low brand tungsten alloy cylinder 2, both fuse into an organic whole after the liquid phase sintering, and its hardness is lower slightly in former low brand tungsten alloy cylinder 2's position, sets up fixed screw hole 3 of usefulness in its position, greatly reduced the rejection rate, can effectually guarantee simultaneously that the performance of whole balancing weight does not descend.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
Claims (5)
1. A balancing weight for satellite, its characterized in that: the tungsten alloy counterweight block comprises a high-grade tungsten alloy counterweight block body and a low-grade tungsten alloy cylinder, wherein a placing hole is formed in the high-grade tungsten alloy counterweight block body, the low-grade tungsten alloy cylinder is arranged in the placing hole, and a threaded hole is formed in the low-grade tungsten alloy cylinder.
2. A process for manufacturing a weight member for a satellite according to claim 1, wherein: the method sequentially comprises the following steps:
A. firstly, manufacturing a high-grade tungsten alloy balancing weight body and a low-grade tungsten alloy column body according to a normal process;
B. then, a placing hole which is equal to the straight line of the low-grade tungsten alloy column body is rotated on the high-grade tungsten alloy balancing weight body, the low-grade tungsten alloy column body is in interference fit with the placing hole, and the hole depth is consistent with the height of the low-grade tungsten alloy column body;
C. the low-grade tungsten alloy column is plugged into the placing hole, then liquid phase sintering is carried out, and the high-grade tungsten alloy balancing weight body and the low-grade tungsten alloy column are integrated into a whole;
D. and a threaded hole is formed in the position of the original low-grade tungsten alloy column.
3. The process of claim 2, wherein the process comprises: the hardness of the high-grade tungsten alloy balancing weight is 90-95 HRC.
4. The process of claim 2, wherein the process comprises: the hardness of the low-grade tungsten alloy cylinder is 70-80 HRC.
5. The process of claim 2, wherein the process comprises: the liquid phase sintering temperature is 1300-1450 ℃, and the sintering time is 40-50 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962694.5A CN110857150A (en) | 2018-08-22 | 2018-08-22 | Balancing weight for satellite and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962694.5A CN110857150A (en) | 2018-08-22 | 2018-08-22 | Balancing weight for satellite and manufacturing process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110857150A true CN110857150A (en) | 2020-03-03 |
Family
ID=69635996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810962694.5A Pending CN110857150A (en) | 2018-08-22 | 2018-08-22 | Balancing weight for satellite and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110857150A (en) |
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| TW201412361A (en) * | 2012-09-26 | 2014-04-01 | ji-hong Su | Manufacturing method of integrally formed forging golf club head |
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| CN206017568U (en) * | 2016-08-31 | 2017-03-15 | 安泰科技股份有限公司 | High-specific gravity tungsten alloy flywheel |
| CN106772252A (en) * | 2016-11-16 | 2017-05-31 | 上海卫星工程研究所 | A kind of balancing weight of Synthetic Aperture Radar satellite |
| CN206492167U (en) * | 2017-01-12 | 2017-09-15 | 张登和 | A kind of hitting face of golf bar head of new high bounce-back |
| CN108149102A (en) * | 2017-12-06 | 2018-06-12 | 中国兵器科学研究院宁波分院 | A kind of preparation method of large scale High Performance W alloy product |
-
2018
- 2018-08-22 CN CN201810962694.5A patent/CN110857150A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1514908A (en) * | 1974-01-22 | 1978-06-21 | Mallory Metallurg Prod Ltd | Armour piercing projectiles |
| JPH1171186A (en) * | 1997-08-26 | 1999-03-16 | Daiichi Seramo:Kk | Bound structure of ceramic to metal and its binding |
| DE10030257A1 (en) * | 2000-06-20 | 2002-01-03 | Festo Ag & Co | Component with internally-threaded bore connection, includes plastic-metallic bush surrounded by and bonded to plastic, all being produced by injection molding |
| CN101530919A (en) * | 2008-03-11 | 2009-09-16 | 深圳富泰宏精密工业有限公司 | Metal injection molding product and manufacturing method thereof |
| TW200940215A (en) * | 2008-03-21 | 2009-10-01 | Fih Hong Kong Ltd | Metal insert molded article and manufacturing method making the same |
| JP2012213384A (en) * | 2011-03-31 | 2012-11-08 | Takeishi Delight Co Ltd | Lure for fishing and method for producing lure body |
| CN103008662A (en) * | 2011-09-23 | 2013-04-03 | 复盛应用科技股份有限公司 | Integrally forming method for compound metals |
| TW201412361A (en) * | 2012-09-26 | 2014-04-01 | ji-hong Su | Manufacturing method of integrally formed forging golf club head |
| CN103866147A (en) * | 2012-12-17 | 2014-06-18 | 中国兵器工业第五二研究所 | Preparation method of large high density tungsten alloy counterweight |
| CN104745907A (en) * | 2013-12-27 | 2015-07-01 | 南京理工大学 | Tungsten alloy formula of high-density flyweight and low-temperature sintering preparation method |
| CN206017568U (en) * | 2016-08-31 | 2017-03-15 | 安泰科技股份有限公司 | High-specific gravity tungsten alloy flywheel |
| CN106772252A (en) * | 2016-11-16 | 2017-05-31 | 上海卫星工程研究所 | A kind of balancing weight of Synthetic Aperture Radar satellite |
| CN206492167U (en) * | 2017-01-12 | 2017-09-15 | 张登和 | A kind of hitting face of golf bar head of new high bounce-back |
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