CN102773471A - Locking piece and manufacturing method thereof - Google Patents
Locking piece and manufacturing method thereof Download PDFInfo
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- CN102773471A CN102773471A CN201110130730XA CN201110130730A CN102773471A CN 102773471 A CN102773471 A CN 102773471A CN 201110130730X A CN201110130730X A CN 201110130730XA CN 201110130730 A CN201110130730 A CN 201110130730A CN 102773471 A CN102773471 A CN 102773471A
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Abstract
The invention relates to a locking piece and a manufacturing method of the locking piece. The locking piece is characterized in that powder metallurgy material comprises the components: Fe powder and Ni powder. The manufacturing method comprises the steps of: (1) V mixing: evenly mixing the Fe power and the Ni powder in proportion; (2) high mixing: mixing the mixed powder and bonding agent in proportion to obtain feed; (3) injection molding: injecting the feed into a mould at the temperature of 150-170 DEG C to make a product blank; (4) extracting: carrying out heat preservation on the blank in extractant for 12-48h at the temperature of 60-80 DEG C and extracting out wax; (5) degreasing: controlling the temperature for 30h under the condition of 450-600 DEG C and removing lipid; and (6) sintering: controlling the temperature for 30h under the condition of 1200-1300 DEG C to obtain the finished product. The manufacturing method has the advantages of being low in production cost, high in material utilization rate and production efficiency, etc.
Description
Technical field
The present invention relates to the powdered metallurgical material technical field, specifically a kind of lock dog and manufacturing approach thereof.
Background technology
As everyone knows, lock dog all is to adopt mach method processing at present, and special because of its shape, the machined difficulty is very high, and this method causes production efficiency low, stock utilization low (can only reach about 50%), and then cause production cost higher.
Summary of the invention
The present invention is directed to the deficiency that exists in the prior art, propose a kind ofly can effectively improve stock utilization and product quality, the lock dog that reduces production costs, enhances productivity and manufacturing approach thereof.
The present invention reaches through following measure:
A kind of lock dog is characterized in that its component comprises iron powder, nickel powder, and its percentage by weight is:
Iron powder Fe:93%-98%,
Nickel powder Ni:2%-7%.
A kind of manufacturing approach of lock dog is characterized in that comprising the following step:
Step 1: mix and to get the raw materials ready, with Fe powder, Ni powder Fe powder: 93%-98% by weight percentage, Ni powder 2%-7% sends in the V-type batch mixer, fully mixes.
Step 2: the preparation feeding, at first 70: 30 by weight percentage mixed of paraffin and polyethylene is become binding agent, step 1 gained mixture and 100: 8.4 by weight percentage ratio of binding agent are sent in the high mixer the mixed product feeding that gets.
Step 3: moulding, use injection machine that above-mentioned gained feeding is expelled in the mould, be under 150 ℃-170 ℃ the condition, to make the product blank, and pare off cast gate and overlap at forming temperature.
Step 4: extraction, the gained blank is put into extractant alcohol, extraction is 12-48 hour under temperature 60-80 ℃ condition, and the wax in the blank is extracted.
Step 5: degreasing, the blank after the extraction is put into debinding furnace, under the condition of 450 ℃-600 ℃ of temperature, degreasing 30 hours removes binding agent remaining in the blank.
Step 6: sintering, the blank after the ungrease treatment is sent into sintering furnace, sintering is 30 hours under the condition of 1200 ℃-1300 ℃ of temperature, obtains sintered part.
Step 7: polishing, the sintered part that obtains is put into polishing machine carry out polishing, make product.
The present invention adopts the powder metallurgy injection molding technology in manufacturing process, stock utilization is increased to 100% from about 50%, and product density reaches 7.5g/cm
3, compare with traditional processing technology, have and can effectively reduce production cost, enhance productivity and significant advantage such as product size precision.
Description of drawings
Accompanying drawing 1 is a perspective view of the present invention;
Accompanying drawing 2 is variations in temperature sketch mapes of degreasing process of the present invention;
Accompanying drawing 3 is variations in temperature sketch mapes of sintering circuit of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explanation.
The present invention proposes a kind of lock dog and manufacturing approach thereof; Wherein the shape and structure of lock dog is shown in accompanying drawing 1 and accompanying drawing 2; Its component comprises iron powder, nickel powder, and its percentage by weight is: Fe powder: 93%-98%, Ni powder: 2%-7%; Its manufacturing approach comprises: mix and get the raw materials ready, prepare feeding, moulding, extraction, degreasing, sintering and polishing, thereby obtain finished product.
Embodiment 1:
(1) with metal dust by the following weight mixing in the V-type batch mixer of packing into: Fe powder 98Kg, Ni powder 2Kg.
(2) by mass percentage: 100: 8.4 ratio adds mixing in the high mixer, and is broken into granule, promptly obtains feeding with the metal dust of above-mentioned mixing and binding agent.
(3) feeding is added in the injection machine hopper, then injection temperature is set at 150 ℃, inject, produce blank, and pare off the cast gate and the overlap of blank.
(4) the blank pendulum is put into extractant on extracting disk, and 60 ℃ are incubated 12h down.
(5) blank after the extraction is put into debinding furnace, and skimming temp is 450 ℃, and fltting speed is per 60 minutes one boats.
(6) blank after the degreasing is put into sintering furnace, and sintering temperature is 1200 ℃, and fltting speed is per 60 minutes one boats.
(7) sintered part polishing, product examine gets final product.
Embodiment 2:
(1) with the metal dust mixing in the V-type batch mixer of packing into as following weight percent: Fe powder 96Kg, Ni powder 4Kg.
(2) by mass percentage: 100: 8.4 ratio adds mixing in the high mixer, and is broken into granule, promptly obtains feeding with the metal dust of above-mentioned mixing and binding agent.
(3) feeding is added in the injection machine hopper, injection temperature is set at 170 ℃, and blank is produced in injection.
(4) the blank pendulum is put into the extraction stove on extracting disk, and 80 ℃ are incubated 48h down.
(5) blank after the extraction is put into debinding furnace, and skimming temp is 600 ℃, and fltting speed is per 60 minutes one weeks.
(6) blank after the degreasing is put into sintering furnace, and sintering temperature is 1300 ℃, and fltting speed is per 60 minutes one weeks.
(7) sintered part polishing, product examine gets final product.
Embodiment 3:
(1) with the metal dust mixing in the V-type batch mixer of packing into as following weight percent: Fe powder 93Kg, Ni powder 7Kg.
(2) by mass percentage: 100: 8.4 ratio adds mixing in the high mixer, and is broken into granule, promptly obtains feeding with the metal dust of above-mentioned mixing and binding agent.
(3) feeding is added in the injection machine hopper, injection temperature is set at 160 ℃, and blank is produced in injection.
(4) the blank pendulum is put into the extraction stove on extracting disk, and 70 ℃ are incubated 24h down.
(5) blank after the extraction is put into debinding furnace, and skimming temp is 500 ℃, and fltting speed is per 60 minutes one weeks.
(6) blank after the degreasing is put into sintering furnace, and sintering temperature is 1250 ℃, and fltting speed is per 60 minutes one weeks.
(7) sintered part polishing, product examine gets final product.
Claims (2)
1. a lock dog is characterized in that its component comprises iron powder, nickel powder, and its percentage by weight is:
Iron powder Fe:93%-98%;
Nickel powder Ni:2%-7%.
2. the manufacturing approach of a lock dog is characterized in that comprising the following step:
Step 1: mix and to get the raw materials ready, with Fe powder, Ni powder Fe powder: 93%-98% by weight percentage, Ni powder 2%-7% sends in the V-type batch mixer, fully mixes.
Step 2: the preparation feeding,, send in the high mixer the mixed feeding that gets with step 1 gained mixture and 100: 8.4 by weight percentage ratio of binding agent.
Step 3: moulding, use injection machine that above-mentioned gained feeding is expelled in the mould, be under 150 ℃-170 ℃ the condition, to make the product blank, and pare off cast gate and overlap at forming temperature.
Step 4: extraction, the gained blank is put into extractant, extraction is 12-48 hour under temperature 60-80 ℃ condition, and the wax in the blank is extracted.
Step 5: degreasing, the blank after the extraction is put into debinding furnace, under the condition of 450 ℃-600 ℃ of temperature, degreasing 30 hours removes binding agent remaining in the blank.
Step 6: sintering, the blank after the ungrease treatment is sent into sintering furnace, sintering is 30 hours under the condition of 1200 ℃-1300 ℃ of temperature, obtains sintered part.
Step 7: polishing, the sintered part that obtains is put into polishing machine carry out polishing, make product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110130730XA CN102773471A (en) | 2011-05-10 | 2011-05-10 | Locking piece and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110130730XA CN102773471A (en) | 2011-05-10 | 2011-05-10 | Locking piece and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102773471A true CN102773471A (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110130730XA Pending CN102773471A (en) | 2011-05-10 | 2011-05-10 | Locking piece and manufacturing method thereof |
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| CN (1) | CN102773471A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084578A (en) * | 2013-01-11 | 2013-05-08 | 郑州市汉鼎粉末冶金科技有限公司 | Powder metallurgy stainless steel lock cylinder and preparation method thereof |
| CN103341631A (en) * | 2013-07-25 | 2013-10-09 | 丹阳市裕桥精密元件有限公司 | Manufacturing technique of T-junction for optical communications |
| CN106001580A (en) * | 2016-07-18 | 2016-10-12 | 安徽奥泰粉末冶金有限公司 | Technology for manufacturing lock through powder metallurgy |
| CN106944624A (en) * | 2017-03-22 | 2017-07-14 | 刘金财 | A kind of preparation method of high abrasion high dimensional accuracy lockset |
-
2011
- 2011-05-10 CN CN201110130730XA patent/CN102773471A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084578A (en) * | 2013-01-11 | 2013-05-08 | 郑州市汉鼎粉末冶金科技有限公司 | Powder metallurgy stainless steel lock cylinder and preparation method thereof |
| CN103341631A (en) * | 2013-07-25 | 2013-10-09 | 丹阳市裕桥精密元件有限公司 | Manufacturing technique of T-junction for optical communications |
| CN103341631B (en) * | 2013-07-25 | 2015-12-09 | 丹阳市裕桥精密元件有限公司 | A kind of manufacture craft of optic communication three-way connection |
| CN106001580A (en) * | 2016-07-18 | 2016-10-12 | 安徽奥泰粉末冶金有限公司 | Technology for manufacturing lock through powder metallurgy |
| CN106944624A (en) * | 2017-03-22 | 2017-07-14 | 刘金财 | A kind of preparation method of high abrasion high dimensional accuracy lockset |
| CN106944624B (en) * | 2017-03-22 | 2019-03-15 | 潘素娇 | A kind of preparation method of high abrasion high dimensional accuracy lockset |
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Application publication date: 20121114 |