CN108788358A - A kind of soldering filter core and welding procedure - Google Patents
A kind of soldering filter core and welding procedure Download PDFInfo
- Publication number
- CN108788358A CN108788358A CN201810983752.2A CN201810983752A CN108788358A CN 108788358 A CN108788358 A CN 108788358A CN 201810983752 A CN201810983752 A CN 201810983752A CN 108788358 A CN108788358 A CN 108788358A
- Authority
- CN
- China
- Prior art keywords
- filter cylinder
- soldering
- filter core
- bottom cover
- end cap
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
Abstract
A kind of soldering filter core of present invention offer and welding procedure, one of which soldering filter core includes bottom cover, end cap and stainless (steel) wire folding wave filter cylinder, the bottom cover and end cap are sealingly disposed in the both ends of the filter cylinder respectively, it is all made of brazing flux connection between the filter cylinder and the bottom cover, end cap, inhibitor is coated in both ends end its circumference of upper edge of the filter cylinder.Stainless (steel) wire is fixed on by way of soldering between end cap and bottom cover, stable structure and intensity height are adapted to heat safe small size folding wave filter core.
Description
Technical field
The present invention relates to filter cores, and in particular to a kind of soldering filter core and welding procedure.
Background technology
Filter this industry development cannot achieve docking so far, there are many operating mode.Such as superhigh temperature, ultralow temperature, height are viscous
Property, use space are small etc..Temperature is the essential condition that filter uses, and common paper filter material maximum operation (service) temperature exists
80 DEG C, 350 DEG C of stainless steel maximum operation (service) temperature.Processing technology is also its key factor, and technique common at present is gluing
With welding.Gluing difficult point is bonding agent suitable environment itself, 95 DEG C or so of common glue heatproof.It welds due to equipment and electric current
Reason can not process the filter core of small size folding wave.
Invention content
In view of the deficiencies of the prior art, a kind of soldering filter core of present invention offer and welding procedure, are adapted to heat safe small
Size rolls over wave filter core.
A kind of soldering filter core, which is characterized in that roll over wave filter cylinder, the bottom cover and end including bottom cover, end cap and stainless (steel) wire
Lid is sealingly disposed in the both ends of the filter cylinder respectively, brazing flux connection is all made of between the filter cylinder and the bottom cover, end cap, in institute
Both ends end its circumference of upper edge for stating filter cylinder is coated with inhibitor.
It is further：The filter cylinder both ends are located in the annular recess opened up on the end cap and bottom cover.
It is further：Described filter cylinder one end end, which is equipped with, closes up, and the closing in of the filter cylinder is located at the ring of bottom cover setting
In shape groove.
It is further：Through-hole is offered in described its axis of end cap upper edge, the through-hole is communicated with the cartridge interior.
A kind of soldering filter core technique, which is characterized in that include the following steps：
Step 1：It will roll to obtain filter cylinder after the stainless (steel) wire folding wave of sintering；
Step 2：Brazing flux is filled in the annular recess being arranged on end cap and bottom cover, then by the annular recess by the end
Lid and bottom lid is respectively fitted over the both ends of the filter cylinder, to obtain filter core to be brazed；
Step 3：The filter core to be brazed is placed in high temperature furnace, the welding curve of the high temperature furnace is set；Wherein, the weldering
Curve is connect to include the following steps：
Step 3.1：It is warming up to 300 DEG C~350 DEG C in 2~3h, and keeps the temperature 0.3~0.8h；
Step 3.2：When the brazing flux is silver-based, 800 DEG C ± 2 DEG C are warming up in 1~2h, and keep the temperature 1.5~2.5h；Work as institute
When to state brazing flux be Ni-based, it is warming up to 1050 DEG C ± 2 DEG C in 1~2h, and keep the temperature 1.5~2.5h；
Step 3.3：It is cooled to 350 DEG C~440 DEG C in 0.5~1.5h, and keeps the temperature 0.3~0.8h；
Step 3.4：It comes out of the stove after being cooled to room temperature.
It is further：In the step 3, when soldering, vacuum degree is 3 × 10 in the high temperature furnace-3Pa~6 × 10-3Pa。
It is further：In the step 2, the annular recess of the bottom cover is put into after one end end of the filter cylinder is closed up
It is interior.
It is further：The silver-based is BAg-9, is either BAg-24 or is BAg-37.
It is further：It is described it is Ni-based be BNi2, be either BNi5 or be BNi7.
It is further：In the step 1, when the filtering accuracy of the filter cylinder is in 1 μm~50 μm, in the filter cylinder
Upper edge its circumference in both ends end smears inhibitor；Inhibitor for prevent brazing flux inhaled upwards along strainer under the action of high temperature and
The aperture for blocking filter cylinder, to avoid influencing the filtering accuracy and flow of filter core.
Beneficial effects of the present invention：Stainless (steel) wire is fixed on by way of soldering between end cap and bottom cover, structure is steady
Determine intensity height and high temperature resistant.
Description of the drawings
Fig. 1 is first embodiment of the present invention structural schematic diagram；
Fig. 2 is second embodiment of the present invention structural schematic diagram；
Fig. 3 is third embodiment of the present invention structural schematic diagram；
Fig. 4 is fourth embodiment of the present invention structural schematic diagram；
Fig. 5 is fifth embodiment of the present invention structural schematic diagram；
Fig. 6 is sixth embodiment of the present invention structural schematic diagram；
Fig. 7 is the welding temperature curve of the present invention.
In figure, 1, bottom cover；2, filter cylinder；3, end cap.
Specific implementation mode
It elaborates below in conjunction with the accompanying drawings to the present invention.It should be noted that left, center, right in present example,
The orientation term such as upper and lower is only relative concept or be to refer to, and should not be considered as with the normal operating condition of product each other
It is restrictive.
A kind of soldering filter core, including bottom cover 1, end cap 3 and stainless (steel) wire folding wave filter cylinder 2, the bottom cover 1 and end cap 3 are distinguished
The both ends of the filter cylinder 2 are sealingly disposed in, brazing flux connection are all made of between the filter cylinder 2 and the bottom cover 1, end cap 3, described
Both ends end its circumference of upper edge of filter cylinder 2 is coated with inhibitor；2 both ends of the filter cylinder are located in the end cap 3 and bottom cover 1
On in the annular recess that opens up；2 one end end of the filter cylinder, which is equipped with, closes up, and the closing in of the filter cylinder is located at the setting of the bottom cover 1
Annular recess in；In 3 upper edge of the end cap, its axis offers through-hole, is communicated inside the through-hole and the filter cylinder 2.
A kind of soldering filter core technique, includes the following steps：
Step 1：It will roll to obtain filter cylinder 2 after the stainless (steel) wire folding wave of sintering, when the filtering accuracy of the filter cylinder 2 is in 1 μm~50 μ
When in m, in the both ends end upper edge of the filter cylinder 2, its circumference smears inhibitor；When the filter cylinder 2 filtering accuracy 50 μm~
200 μm, then it need not smear inhibitor by its circumference in the both ends end upper edge of the filter cylinder 2.And on the both ends end of filter cylinder 2
Inhibitor is smeared along its circumference；Step 2：Brazing flux is filled in the annular recess being arranged on end cap 3 and bottom cover 1, then passes through ring
End cap 3 and bottom cover 1 are respectively fitted over the both ends of filter cylinder 2 by shape groove, to obtain filter core to be brazed；Step 3：It will be described to be brazed
Filter core is placed in high temperature furnace, and the welding curve of high temperature furnace is arranged；Wherein, welding curve includes the following steps：As shown in fig. 7,
Step 3.1：300 DEG C~350 DEG C are warming up in T1=2~3h, for preheating burner hearth and part preheating；And keep the temperature T2=0.3~
0.8h, heat preservation are to make Part temperature uniform, another is equipment limit, protect equipment and power saving；Step 3.2：When described
When brazing flux is silver-based, 800 DEG C ± 2 DEG C are warming up in T3=1~2h, and keep the temperature T4=1.5~2.5h；When the brazing flux is Ni-based
When, 1050 DEG C ± 2 DEG C are warming up in T3=1~2h, and keep the temperature T4=1.5~2.5h；Step 3.3：In T5=0.5~1.5h
350 DEG C~400 DEG C are cooled to, and keeps the temperature T6=0.3~0.8h；Step 3.4：T7=0.5~1h comes out of the stove after being cooled to room temperature；Soldering
When, vacuum degree is 3 × 10 in the high temperature furnace-3Pa~6 × 10-3Pa.In the step 2, by one end end of the filter cylinder 2
It is put into after flanging in the annular recess of the bottom cover 1.450-850 DEG C of stainless steel sensitizing temperature section, therefore should avoid growing as possible
Time stops in this temperature range；When vacuum degree is high, the speed that stainless steel sensitization generates intercrystalline failure is slow.Wherein, described
Silver-based is BAg-9, is either BAg-24 or is BAg-37；It is described it is Ni-based be BNi2, be either BNi5 or be BNi7.
First embodiment, other technical characteristics are in the case that identical with a kind of soldering filter core, as shown in Figure 1, ring
The bottom surface of shape groove is plane, and brazing flux is equipped between the bottom surface of annular groove and filter cylinder 2；One connect with bottom cover 1 on filter cylinder 2
End is held to be equipped with compression side.3 middle part of end cap is equipped with flange, and the right end end of end cap 3 is that pipeline connects mouth, is connect in mouth positioned at pipeline
Through-hole diameter is less than the through-hole diameter being located in end cap 3.Wherein, the material of end cap 3, bottom cover 1 and filter cylinder 2 is 304 stainless steels, group
Stainless (steel) wire at filter cylinder 2 is dense network, and its specification is 165 × 1400/0.071 × 0.04, and brazing flux is silver-based BAg-9.
It operates and makes according to a kind of soldering filter core processing step, weld curve：It is warming up to 302 DEG C ± 2 DEG C in 2h, and
Keep the temperature 0.3h；It is warming up to 800 DEG C ± 2 DEG C in 1h, and keeps the temperature 1.5h；It is cooled to 352 DEG C ± 2 DEG C in 0.5h, and keeps the temperature
0.3h；It comes out of the stove after being cooled to room temperature.
Second embodiment, other technical characteristics are in the case that identical with a kind of soldering filter core, as shown in Fig. 2, ring
The bottom surface of shape groove is plane, and brazing flux is equipped between the bottom surface of annular groove and filter cylinder 2.3 middle part of end cap is equipped with flange, end cap
3 right end end is that pipeline connects mouth, and it is identical with the diameter of end cap 3 that pipeline connects mouth.Wherein, the material of end cap 3, bottom cover 1 and filter cylinder 2
Stainless (steel) wire for 304 stainless steels, composition filter cylinder 2 is dense network, and its specification is 325 × 2300/0.036 × 0.025, brazing flux
For silver-based BAg-24.
It operates and makes according to a kind of soldering filter core processing step, weld curve：It is warming up to 325 DEG C ± 2 DEG C in 2h, and
Keep the temperature 0.5h；It is warming up to 800 DEG C ± 2 DEG C in 1.5h, and keeps the temperature 2h；It is cooled to 375 DEG C ± 2 DEG C in 1h, and keeps the temperature 0.5h；
It comes out of the stove after being cooled to room temperature.
3rd embodiment, other technical characteristics are in the case that identical with a kind of soldering filter core, as shown in figure 3, ring
The bottom surface of shape groove is plane, and brazing flux is equipped between the bottom surface of annular groove and filter cylinder 2；One connect with bottom cover 1 on filter cylinder 2
End is held to be equipped with compression side.3 right end end of end cap is equipped with flange, and the outside end diameter of through-hole is more than the straight of its inner end end
Diameter.Wherein, the material of end cap 3, bottom cover 1 and filter cylinder 2 is 304 stainless steels, and the stainless (steel) wire of composition filter cylinder 2 is dense network, and its
Specification is 200 × 1400/0.071 × 0.04, and brazing flux is silver-based BAg-37.
It operates and makes according to a kind of soldering filter core processing step, weld curve：348 DEG C ± 2 DEG C are warming up in 2.5h,
And keep the temperature 0.8h；It is warming up to 800 DEG C ± 2 DEG C in 2h, and keeps the temperature 2.5h；It is cooled to 438 DEG C ± 2 DEG C in 1.5h, and keeps the temperature
0.8h；It comes out of the stove after being cooled to room temperature.
Fourth embodiment, other technical characteristics are in the case that identical with a kind of soldering filter core, as shown in figure 4, ring
The bottom surface of shape groove is plane, and brazing flux is equipped between the bottom surface of annular groove and filter cylinder 2.3 middle part of end cap is equipped with flange, end cap
3 right end end is that pipeline connects mouth, and it is identical with the diameter of end cap 3 that pipeline connects mouth.Wherein, the material of end cap 3, bottom cover 1 and filter cylinder 2
Stainless (steel) wire for 316L stainless steels, composition filter cylinder 2 is dense network, and its specification is 165 × 600/0.071 × 0.05, brazing flux
For Ni-based BNi2.
It operates and makes according to a kind of soldering filter core processing step, weld curve：It is warming up to 302 DEG C ± 2 DEG C in 2h, and
Keep the temperature 0.3h；It is warming up to 1050 DEG C ± 2 DEG C in 1h, and keeps the temperature 1.5h；It is cooled to 302 DEG C ± 2 DEG C in 0.5h, and keeps the temperature
0.3h；It comes out of the stove after being cooled to room temperature.
5th embodiment, other technical characteristics are in the case that identical with a kind of soldering filter core, as shown in figure 5, ring
The bottom surface of shape groove is plane, and brazing flux is equipped between the bottom surface of annular groove and filter cylinder 2.Wherein, end cap 3, bottom cover 1 and filter cylinder
2 material is 316L stainless steels, and the stainless (steel) wire of composition filter cylinder 2 is dense network, and its specification is 50 × 270/0.14 × 0.1,
Brazing flux is Ni-based BNi5.
It operates and makes according to a kind of soldering filter core processing step, weld curve：325 DEG C ± 2 DEG C are warming up in 2.5h,
And keep the temperature 0.5h；It is warming up to 1050 DEG C ± 2 DEG C in 1.5h, and keeps the temperature 2h；It is cooled to 352 DEG C ± 2 DEG C in 1h, and keeps the temperature
0.5h；It comes out of the stove after being cooled to room temperature.
Sixth embodiment, other technical characteristics are in the case that identical with a kind of soldering filter core, as shown in fig. 6, ring
The bottom surface of shape groove is plane, and brazing flux is equipped between the bottom surface of annular groove and filter cylinder 2；One connect with bottom cover 1 on filter cylinder 2
End is held to be equipped with compression side.3 right end end of end cap is equipped with flange, and the outside end diameter of through-hole is more than the straight of its inner end end
Diameter.Wherein, the material of end cap 3, bottom cover 1 and filter cylinder 2 is 304 stainless steels, and the stainless (steel) wire of composition filter cylinder 2 is square hole net, and its
Specification is 0.071/0.056, and brazing flux is Ni-based BNi7.
It operates and makes according to a kind of soldering filter core processing step, weld curve：It is warming up to 348 DEG C ± 2 DEG C in 3h, and
Keep the temperature 0.8h；It is warming up to 1050 DEG C ± 2 DEG C in 2h, and keeps the temperature 2.5h；It is cooled to 438 DEG C ± 2 DEG C in 1.5h, and keeps the temperature
0.8h；It comes out of the stove after being cooled to room temperature.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of soldering filter core, it is characterised in that：Wave filter cylinder, the bottom cover and end cap are rolled over including bottom cover, end cap and stainless (steel) wire
It is sealingly disposed in the both ends of the filter cylinder respectively, brazing flux connection is all made of between the filter cylinder and the bottom cover, end cap, described
Both ends end its circumference of upper edge of filter cylinder is coated with inhibitor.
2. according to a kind of soldering filter core of claim 1, it is characterised in that：The filter cylinder both ends are located in the end lid and bottom
It covers in the annular recess opened up.
3. according to a kind of soldering filter core of claim 2, it is characterised in that：Described filter cylinder one end end, which is equipped with, closes up, the filter cylinder
Closing in be located at the bottom cover setting annular recess in.
4. according to a kind of soldering filter core of claim 3, it is characterised in that：Through-hole is offered in described its axis of end cap upper edge, institute
Through-hole is stated to communicate with the cartridge interior.
5. a kind of soldering filter core technique, which is characterized in that include the following steps：
Step 1：It will roll to obtain filter cylinder after the stainless (steel) wire folding wave of sintering；
Step 2：Brazing flux is filled in the annular recess being arranged on end cap and bottom cover, then by the annular recess by the end
Lid and bottom lid is respectively fitted over the both ends of the filter cylinder, to obtain filter core to be brazed；
Step 3：The filter core to be brazed is placed in high temperature furnace, the welding curve of the high temperature furnace is set；Wherein, the weldering
Curve is connect to include the following steps：Step 3.1：It is warming up to 300 DEG C~350 DEG C in 2~3h, and keeps the temperature 0.3~0.8h；Step
3.2：When the brazing flux is silver-based, 800 DEG C ± 2 DEG C are warming up in 1~2h, and keep the temperature 1.5~2.5h；When the brazing flux is
When Ni-based, 1050 DEG C ± 2 DEG C are warming up in 1~2h, and keep the temperature 1.5~2.5h；Step 3.3：It is cooled in 0.5~1.5h
350 DEG C~440 DEG C, and keep the temperature 0.3~0.8h；Step 3.4：It comes out of the stove after being cooled to room temperature.
6. a kind of soldering filter core technique according to claim 5, it is characterised in that：It is described when soldering in the step 3
Vacuum degree is 3 × 10 in high temperature furnace-3Pa~6 × 10-3Pa。
7. a kind of soldering filter core technique according to claim 6, it is characterised in that：In the step 2, by the filter cylinder
One end end is put into after closing up in the annular recess of the bottom cover.
8. a kind of soldering filter core technique according to claim 7, it is characterised in that：The silver-based is BAg-9, Huo Zhewei
BAg-24, or be BAg-37.
9. a kind of soldering filter core technique according to claim 7, it is characterised in that：It is described Ni-based for BNi2, Huo Zhewei
BNi5, or be BNi7.
10. a kind of soldering filter core technique according to claim 9, it is characterised in that：In the step 1, when the filter cylinder
Filtering accuracy in 1 μm~50 μm when, smear inhibitor in the both ends end upper edge of the filter cylinder its circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983752.2A CN108788358B (en) | 2018-08-27 | 2018-08-27 | Brazing filter element and welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983752.2A CN108788358B (en) | 2018-08-27 | 2018-08-27 | Brazing filter element and welding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108788358A true CN108788358A (en) | 2018-11-13 |
| CN108788358B CN108788358B (en) | 2020-11-03 |
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ID=64080827
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810983752.2A Active CN108788358B (en) | 2018-08-27 | 2018-08-27 | Brazing filter element and welding process |
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| CN1326017A (en) * | 2001-05-08 | 2001-12-12 | 徐中立 | Antirusting technology for liquid reservoir made of carbon steel in air conditioner or refrigerator |
| US20040004110A1 (en) * | 2002-07-03 | 2004-01-08 | Tubular Perforating Mfg., Ltd. | Filter cartridge assembly and method of manufacture |
| CN202648275U (en) * | 2012-05-18 | 2013-01-02 | 浙江盾安机械有限公司 | Filter-type oil separator |
| CN203183775U (en) * | 2013-04-01 | 2013-09-11 | 何乐平 | Transversely folded filter core |
| CN103566656A (en) * | 2012-08-09 | 2014-02-12 | 新乡市天诚航空净化设备有限公司 | Aerospace pure oxygen filter and welding method thereof |
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2018
- 2018-08-27 CN CN201810983752.2A patent/CN108788358B/en active Active
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| SU416191A1 (en) * | 1971-11-29 | 1974-02-25 | ||
| CN2342868Y (en) * | 1998-09-21 | 1999-10-13 | 龚云明 | Conoid wire winding-up filter screen cylinder of stainless steel |
| CN1326017A (en) * | 2001-05-08 | 2001-12-12 | 徐中立 | Antirusting technology for liquid reservoir made of carbon steel in air conditioner or refrigerator |
| US20040004110A1 (en) * | 2002-07-03 | 2004-01-08 | Tubular Perforating Mfg., Ltd. | Filter cartridge assembly and method of manufacture |
| CN202648275U (en) * | 2012-05-18 | 2013-01-02 | 浙江盾安机械有限公司 | Filter-type oil separator |
| CN103566656A (en) * | 2012-08-09 | 2014-02-12 | 新乡市天诚航空净化设备有限公司 | Aerospace pure oxygen filter and welding method thereof |
| CN203183775U (en) * | 2013-04-01 | 2013-09-11 | 何乐平 | Transversely folded filter core |
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| Title |
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| 梁俊民等: "高精度骨架式过滤器的复合连接技术", 《甘肃工业大学学报》 * |
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