CN100545272C - Aging technique between the snail volume whisker high temperature, short time that berylliumbronze is made - Google Patents
Aging technique between the snail volume whisker high temperature, short time that berylliumbronze is made Download PDFInfo
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- CN100545272C CN100545272C CNB200710092915XA CN200710092915A CN100545272C CN 100545272 C CN100545272 C CN 100545272C CN B200710092915X A CNB200710092915X A CN B200710092915XA CN 200710092915 A CN200710092915 A CN 200710092915A CN 100545272 C CN100545272 C CN 100545272C
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- spring
- whisker
- timeliness
- aging
- snail volume
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Abstract
Aging technique between the snail volume whisker high temperature, short time that berylliumbronze is made, it is characterized in that: at first snail volume whisker coiling on axle of nonferrous materials QBe1.9Cr is finished, big end with iron wire binding fixing spring, axle and snail volume whisker are put into salt made from earth containing a comparatively high percentage of sodium chloride tempering stove timeliness, 345 ℃ ± 2 ℃ of aging temps, timeliness soaking time 7 minutes after timeliness insulation finishes, was inserted spring in the water of 5 ℃-30 ℃ of normal temperature cooling 1 minute.It is short that the present invention has aging time, the aging temp height, and the advantage that the pagoda shape camber of spring is little, the deflection of every coiled spring can satisfy tower shape spring requirement of mass production fully less than below 0.02 millimeter.
Description
Technical field
The present invention relates to the thermal treatment ageing strengthening technology of nonferrous materials QBe1.9Cr.
Background technology
Roll up whisker with the snail that berylliumbronze is made, be commonly called as the pagoda shape spring, because the requirement of spring geometric accuracy is high, necessary gap, gap is even between each circle of spring.At present, conventional nonferrous materials QBe1.9Cr thermal treatment ageing strengthening technology is the berylliumbronze solution treatment, and solid solution temperature is 780 ℃-790 ℃, water cooling, and aging temp is 310 ℃-330 ℃, the timeliness soaking time is 2 hours to 3 hours.Because the γ of beryllium-bronze material separates out and structural stress and thermal stresses effect in that α is mutually intragranular, because the berylliumbronze interior tissue changes with the lasting of timeliness time, structural transformation causes the every circle of spring to deform again, each circle causes that because of distortion contacts with each other frictional force heightens between the circle, thereby after being pressed into a circle height when making spring work, can not upspring, can not return to original initial state when the external force unloaded spring, this means this spring manufacturing failure, spring is a waste product.Therefore conventional thermal treatment inefficacy technology can't be carried out the production of such pagoda shape reel sheath spring at all.
Summary of the invention
In order to overcome the distortion of the thermal treatment timeliness operation medi-spring every circle of snail volume whisker after the coiling moulding, the present invention proposes a kind of new thermal treatment aging technique, makes aging time short, the aging temp height, and the distortion that timeliness produces is little.
Patent of the present invention solves the technical scheme that its technical problem adopts:
Aging technique between the snail volume whisker high temperature, short time that berylliumbronze is made, at first snail volume whisker coiling on axle of nonferrous materials QBe1.9Cr is finished, big end with iron wire binding fixing spring, axle and snail volume whisker are put into salt made from earth containing a comparatively high percentage of sodium chloride tempering stove timeliness, 345 ℃ ± 2 ℃ of aging temps, timeliness soaking time 7 minutes is after the timeliness insulation finishes, spring was inserted in the water of 5 ℃-30 ℃ of normal temperature cooling 1 minute, the timeliness operation finishes.
Technology aging time of the present invention is short, the aging temp height, and the pagoda shape camber of spring is little, and the deflection of every coiled spring can satisfy tower shape spring requirement of mass production fully less than below 0.02 millimeter.After heat-treating the timeliness tempering by technical scheme of the present invention, after the pagoda shape spring is compressed to the limit, after compression height only is the height of a circle, unclamps the external force sheath spring and all can upspring to and recover original original state.
Description of drawings
Fig. 1 is the snail volume whisker thermal treatment aging technique figure of material QBe1.9Cr.
Fig. 2 is right sheath spring part shape figure.
Fig. 3 be produce right sheath spring around spring mandrel structure synoptic diagram.
Fig. 4 is left sheath spring part shape figure.
Fig. 5 be produce left sheath spring around spring mandrel structure synoptic diagram.
Embodiment
Example 1: part name: right sheath spring, material: QBe1.9Cr, the starting material state: 780 ℃, water-cooled obtains oversaturated αGu Rongti, part shape figure such as Fig. 2.Technical requirements: 1. rotation direction a: left side.2. number of total coils: 19 3. number of active coils: 17 4. 2 millimeters of ununiformity franchises of lift between circle.5. tape thickness is 0.30 millimeter.6. length of run: 1103 millimeters.7. thermal treatment: timeliness.8. inspection specifications is pressed the WJ532-93 execution.
(technical requirements: 1. machined surface twist around the spring axle at first to utilize special use shown in Figure 3.2. direction: left-handed.3. intercept: 5.5 4. lift angles: 0345 5. number of total coils: 20 6. axial line displacements: 7.25 7. materials: 35 8. thermal treatments: be that 10 millimeters, length are that 1200 millimeters, thickness are 0.30 millimeter nonferrous materials QBe1.9Cr coiling moulding with width HRC28-36), with the berylliumbronze sheet of the fixing big end of iron wire binding mode, put into salt made from earth containing a comparatively high percentage of sodium chloride tempering stove timeliness around spring axle and right sheath spring together with special use.Aging temp is 345 ℃ ± 2 ℃, aging time 7 minutes, special use is put into water around the spring axle in the lump together with the right sheath spring of top coiling cools off, water temp is 1 ℃-30 ℃, 1 minute cooling time, after cooling finishes, remove the binding iron wire of big end, take out spindle specially, wash the salt made from earth containing a comparatively high percentage of sodium chloride mark between the every circle of spring.Repair the number of total coils and the free height of right sheath spring, right sheath spring is made and is finished, and its artwork is referring to Fig. 1.
Example 2: part name: left sheath spring, material: QBe1.9Cr, the starting material state: 780 ℃, water-cooled obtains oversaturated αGu Rongti state, part shape figure such as Fig. 4.(technical requirements: 1. rotation direction a: left side.2. number of total coils: 12 3. number of active coils: 10 4. 2 millimeters of ununiformity franchises of lift between circle.5. tape thickness is 0.30 millimeter.6. length of run: 920 millimeters.7. thermal treatment: timeliness.8. inspection specifications is pressed the WJ532-93 execution.)
(technical requirements: 1. machined surface F twist around the spring axle at first to utilize special use shown in Figure 5.2. direction: left-handed.3. intercept: 6 4. lift angles: 0352 5. number of total coils: 17 6. axial line displacements: 6 7. materials: 35 8. thermal treatments: be that 10 millimeters, length are that 950 millimeters, thickness are 0.30 millimeter nonferrous materials QBe1.9Cr coiling moulding with width HRC28-36), with the berylliumbronze sheet of the fixing big end of iron wire binding mode, put into salt made from earth containing a comparatively high percentage of sodium chloride tempering stove timeliness around spring axle and left sheath spring together with special use.Aging temp is 345 ℃ ± 2 ℃, aging time 7 minutes, special use is put into water around the spring axle in the lump together with the left sheath spring of top coiling cools off, water temp is 1 ℃-30 ℃, 1 minute cooling time, after cooling finishes, remove the binding iron wire of big end, take out spindle specially, wash the salt made from earth containing a comparatively high percentage of sodium chloride mark between the every circle of spring.Repair the number of total coils and the free height of left sheath spring, left sheath spring is made and is finished.Its artwork is referring to Fig. 1.
Claims (1)
1, aging technique between the snail volume whisker high temperature, short time of berylliumbronze manufacturing, it is characterized in that: at first snail volume whisker coiling on axle of nonferrous materials QBe1.9Cr is finished, big end with iron wire binding fixing spring, axle and snail volume whisker are put into salt made from earth containing a comparatively high percentage of sodium chloride tempering stove timeliness, 345 ℃ ± 2 ℃ of aging temps, timeliness soaking time 7 minutes after timeliness insulation finishes, was inserted spring in 5 ℃-30 ℃ the water cooling 1 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710092915XA CN100545272C (en) | 2007-10-30 | 2007-10-30 | Aging technique between the snail volume whisker high temperature, short time that berylliumbronze is made |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710092915XA CN100545272C (en) | 2007-10-30 | 2007-10-30 | Aging technique between the snail volume whisker high temperature, short time that berylliumbronze is made |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101195854A CN101195854A (en) | 2008-06-11 |
| CN100545272C true CN100545272C (en) | 2009-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710092915XA Expired - Fee Related CN100545272C (en) | 2007-10-30 | 2007-10-30 | Aging technique between the snail volume whisker high temperature, short time that berylliumbronze is made |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100545272C (en) |
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2007
- 2007-10-30 CN CNB200710092915XA patent/CN100545272C/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 铍青铜弹簧热处理工艺改进. 孙守功.金属热处理，第28卷第8期. 2003 * |
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| Publication number | Publication date |
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| CN101195854A (en) | 2008-06-11 |
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Owner name: CHONGQING CHANGAN INDUSTRIAL (GROUP) CO., LTD. Free format text: FORMER NAME: CHANG AN AUTOMOBILE (GROUP) CO., LTD. |
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Address after: 400023 No. 599 Airport Avenue, Chongqing, Yubei District Patentee after: Chongqing Changan Industrial (Group) Co., Ltd. Address before: 400023 Chongqing Jiangbei District, the new East Road, No. 260 Patentee before: Chang'an Automobile (Group) Co., Ltd. |
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Granted publication date: 20090930 Termination date: 20121030 |