CN203463805U - Large-caliber stainless steel thin-walled tube - Google Patents
Large-caliber stainless steel thin-walled tube Download PDFInfo
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- CN203463805U CN203463805U CN201320597776.7U CN201320597776U CN203463805U CN 203463805 U CN203463805 U CN 203463805U CN 201320597776 U CN201320597776 U CN 201320597776U CN 203463805 U CN203463805 U CN 203463805U
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Abstract
The utility model provides a large-caliber stainless steel thin-walled tube, and belongs to the technical field of pipelines. The large-caliber stainless steel thin-walled tube solves the problems that existing rain water pipes and stovepipes are large in weight and size, short in service life and troublesome to install. The large-caliber stainless steel thin-walled tube comprises a cylindrical tube body, wherein the tube body is made of a stainless steel material, the thickness of the wall of the tube body ranges from 0.25mm to 0.6mm, a plurality of reinforcing ribs are evenly distributed on the tube body in the axial direction, the tube body is provided with a corrugated part, and the corrugated part is composed of a plurality of annular arc-shaped protrusions which are arranged closely. The large-caliber stainless steel thin-walled tube has the advantages of being safe, sanitary, long in service life, light in weight, and resistant to corrosion.
Description
Technical field
The utility model belongs to pipe technology field, relates to a kind of Stainless Steel Tube, particularly a kind of large-caliber thin-walled Stainless Steel Tube that is applicable to the outdoor draining of building and boiler, air heating stove smoke evacuation use.
Background technique
At present, PVC plastic tube is the critical piece of the outdoor rain pipe of building.There is self unsurmountable defect in the many aspects of PVC plastic tube: it is easily cracked that (1) PVC plastic tube is met shock, is inflammable matter, has certain potential safety hazard; (2) cold performance is poor, and at refrigerant latitudes, PVC plastic tube pipe is easily cracked, and this people's life puts to no little inconvenience, even be easily subject to UV sunlight according to thanking at subtropical and tropical zones pvc pipe, and accelerated ageing; (3) PVC plastic tube rainwater interface elbow easily leaks, maintenance and transposing inconvenience; (4), PVC plastic tube generally adopts straight tube circular design, has the possibility of landing after fixing with clip; (5) shortcoming of PVC maximum: it is all toxic to the mankind and environment.When packing film is produced PVC, near the workman people with living in PVC factory can touch vinyl chloride, and this is a kind of carcinogen.Modern research shows PVC some poisonous adding ingredient that in use can drop.Some poisonous additive and plasticizing agent in PVC, may ooze out or gasify; Part additive can disturb biological internal secretion (affecting Reproductive Performance), and part can increase carcinogenic risk; While burning PVC rubbish, also can equally with production process produce dioxin.Dioxin is height toxicant, may cause the generation of cancer and other illness; Simultaneously it also can become global threat, because it can scatter on a large scale in environment, and cannot dissipate.
And at traditional civil heating stove stovepipe, majority has iron pipe, tin plate, cement pipe to make.Iron pipe, the easy oxidized corrosion of tin plate air heating stove chimney, compare working life with stainless steel chimney shorter.Iron pipe, tin plate air heating stove chimney comparatively speaking 1～2 year will change once, stainless steel thin-wall chimney does not need to change the even longer time at least 10 years.After iron pipe, tin plate are oxidized, or in installation process, turning joint sealing is not strong, often causes toxic gas to leak, and human body is caused to certain harm.The crushing resistance of tin plate chimney is poor, and it is flat that tin plate chimney can become under an adult's standing.The air heating stove chimney that cement pipe is made, weight is all larger with volume, installs cumbersomely, and does not have sealing bend to connect, and poor radiation, easily hardening cracks at high temperature.
Model utility content
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of safety and sanitary, long service life, lightweight, corrosion resistant is anti-corrosion, the large-caliber stainless steel thin walled tube of applied range.
The purpose of this utility model can realize by following technical proposal: a kind of large-caliber stainless steel thin walled tube, comprise and be body cylindraceous, it is characterized in that, described body adopts stainless steel material to make and body wall thickness is 0.25mm～0.6mm, on described body, be axially evenly distributed with some stiffening ribs, on described body, have corrugated part, described corrugated part is become by some compact arranged ring-type arc convex sets.
In above-mentioned large-caliber stainless steel thin walled tube, described body one end has the expansion mouth of concentric setting and described expansion mouth internal diameter is slightly larger than body caliber.
In above-mentioned large-caliber stainless steel thin walled tube, described body two ends all have above-mentioned expansion mouth.
In above-mentioned large-caliber stainless steel thin walled tube, described stiffening rib in the form of a ring and outwardly convex, and is connected as a single entity with described body.
In above-mentioned large-caliber stainless steel thin walled tube, the width of single ring-type arc convex is less than the width of stiffening rib.
In above-mentioned large-caliber stainless steel thin walled tube, described corrugated part and body are connected as a single entity.
In above-mentioned large-caliber stainless steel thin walled tube, the both ends of the surface of stiffening rib are connected with tube wall.
In above-mentioned large-caliber stainless steel thin walled tube, between two adjacent stiffening ribs, spacing is 20mm～2000mm.
In above-mentioned large-caliber stainless steel thin walled tube, described body bore is 65mm～160mm.
Compared with prior art, the utlity model has following advantage:
1, body is whole adopts stainless steel material once-through to make, and the body that stainless steel material is made has excellent decay resistance, water-fast stream corrosion, and unharmful substance is separated out; Inboard wall of tube body is smooth simultaneously, and rainwater resistance is little, and quality is light.
2, on body, all curved sections form by the corrugated part on body, corrugated part is become by a plurality of compact arranged ring-type arc convex sets, make like this corrugated part there is larger axial compression and amount of tension, make corrugated part when the body of straight-tube shape, play the effect that is equal to stiffening rib, when body is crooked, play transitional function, improve the problem of yielding after thin walled tube pressurized and collapsing, guarantee that curved section keeps circular cross-section.
3, on body, having the stiffening rib and the stiffening rib that are connected as a single entity is axially evenly distributed on body, stiffening rib adopts expansion reinforcement technology to form, stiffening rib can make pipe harder withstand voltage (thin ancient piece of jade, round, flat and with a hole in its centre Stainless Steel Tube its hardness after reinforcement of 0.4MM thickness is equivalent to 1.2MM thickness pipe), has greatly improved the problem of yielding after thin walled tube pressurized and collapsing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model when clip is installed.
Fig. 3 is the structural representation of the utility model another kind of state when clip is installed.
Fig. 4 is the structural representation of the utility model the second shape.
Fig. 5 is the structural representation of the third shape of the utility model.
In figure, 1, body; 2, stiffening rib; 3, corrugated part; 31, ring-type arc convex; 4, expansion mouth; 5, clip.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this large-caliber stainless steel thin walled tube comprises and is body 1 cylindraceous, and body 1 wall thickness is 0.25mm～0.6mm, preferred, and body 1 thin and thick is that 0.4mm is best; Body 1 bore is 65mm～160mm, preferred, and body 1 bore is that 100mm is best.
Further, be axially evenly distributed with a plurality of stiffening ribs 2 on body 1, the spacing between two adjacent stiffening ribs 2 is 20mm～2000mm, and concrete data can be adjusted according to customer demand.Stiffening rib 2 is in the form of a ring and to external arc projection, and is connected as a single entity with body 1, and specifically, stiffening rib 2 adopts expansion reinforcement technologies directly to form on body 1, and the both ends of the surface of stiffening rib 2 are connected with body 1 outer wall.
The at present conventional thin ancient piece of jade, round, flat and with a hole in its centre pipe of large-caliber stainless steel is straight tube pipe, in order to guarantee the intensity of pipe, more than its thickness is mainly 0.8MM, and this pipe is greater than 50MM at bore, on connecting, elbow there is difficulty, and general elbow part adopts welding technique, artificial and time loss is large, cost is high.And the wall thickness of this Stainless Steel Tube only has 0.4mm, adopting this size is mainly in order to reduce production costs.Because the wall thickness of body 1 own is thinner, bore is larger again, the concentricity of body 1 is difficult to be guaranteed, and body 1 can be out of shape and collapsing when bearing outside external force, affect connection between each body 1 and unimpeded, by add stiffening rib 2 on body 1, can strengthen the crushing resistance of body 1, make body 1 harder withstand voltage (thin ancient piece of jade, round, flat and with a hole in its centre Stainless Steel Tube its hardness after reinforcement of 0.4mm thickness is equivalent to 1.2mm thickness pipe), the concentricity of body 1 is guaranteed, no matter body 1 how long, all can keep body 1 unitary circular cross section, greatly improved the problem of yielding after thin walled tube pressurized and collapsing.
The effect of stiffening rib 2 is not only to strengthen the crushing resistance of body 1, and when this large-caliber stainless steel thin walled tube being applied to the outdoor rain pipe of building, because rain pipe is all generally drum and is vertically mounted on outdoor wall, for rain pipe being fixed, one fixing clip 5 is on the wall installed conventionally on pipe, original clip 5 mounting types are just simply buckled in clip 5 on the outer wall that pipe is smooth, can not fix pipe upper-lower position, when tube brakes, the easy landing of pipe remaining part is got off, now rain pipe loses water flowing function.As shown in Figure 2, by clip 5 is arranged on stiffening rib 2, stiffening rib 2 plays the effect of a strong point, make clip 5 all can fix body 1 on circumferential and axial direction, can guarantee that body 1 is when fracture, clip 5 still can be fixing on the wall by body 1, and body 1 is still unimpeded up and down, makes its water flowing function unaffected.
Also can be as shown in Figure 3, clip 5 is snapped onto between two adjacent stiffening ribs 2, above now the spacing between these two adjacent stiffening ribs 2 guarantees that clip 5 can snap onto just, this structure also can reach above-mentioned effect.
Further, on body 1, there is corrugated part 3, corrugated part 3 is comprised of a plurality of compact arranged ring-type arc convex 31, the same expansion reinforcement technology that adopts of ring-type arc convex 31 forms, it is the width that the width of single ring-type arc convex 31 is less than stiffening rib 2, therefore, the effect of corrugated part 3 on the body 1 of straight-tube shape is equal to stiffening rib 2.Corrugated part 3 also has another effect, as shown in Figure 4, when body 1 is L font, body 1 curved section is completed by corrugated part 3, this is because the wall thickness of this body 1 itself is very thin, wall thickness only has 0.4mm, if directly body 1 straight drum part is carried out to bending, can become in bend tension process thinner until body 1 of body 1 wall thickness breaks, and body 1 curved section also can be out of shape, cannot keep original circular cross-section, channel narrows, thus affect the original draining smoke discharging effect of pipe.Therefore by corrugated part 3, make this body 1 when corrugated part 3 is carried out to bending process, ring-type arc convex 31 is along with corrugated part 3 is bent and extends gradually, make like this corrugated part 3 there is larger axial compression and amount of tension, guarantee that curved section keeps circular cross-section.
Corrugated part 3 is connected as a single entity with body 1 simultaneously, make like this after corrugated part 3 bendings, while particularly this thin walled tube being applied on stovepipe, from the incoming end of air heating stove to outdoor exhaust end, can adopt one of this thin walled tube directly to complete, way middle tube body 1 bending position of need to turning directly completes by corrugated part 3, without connected elements such as erection joints, good airproof performance (gas leakage degree is 0), safe, exhaust better heat-radiation effect.
The quantity of corrugated part 3 needs bending to determine several times by body 1, that is to say that this stainless-steel thin-wall pipe carries out on the corrugated part 3 at this body 1 only when needs are crooked, to avoid the problems referred to above, solved the crooked difficult problem of the thin ancient piece of jade, round, flat and with a hole in its centre Stainless Steel Tube of heavy caliber, the quantity of corrugated part 3 on body 1 is more, the flexible position of body 1 is also more, due to corrugated part 3, can replace the effect of stiffening rib 2 simultaneously, in the situation that body 1 total length is not long, can save stiffening rib 2, directly with corrugated part 3, substitute.
Further, the expansion mouth 4 and expansion mouth 4 internal diameters that in body 1 one end, have a concentric setting are slightly larger than body 1 caliber.Because body 1 length can endless, simultaneously for convenient storage and transportation, when manufacturing this stainless-steel thin-wall pipe, at former body, 1 port part place adopts expansion pattern directly to form expansion mouth 4, the difference of the caliber between expansion mouth 4 bores and body 1 caliber is equal to or slightly less than body 1 wall thickness, guarantees that another root Stainless Steel Tube energy interference fit is slotting solid on expansion mouth 4.
Further, body 1 two ends all have above-mentioned expansion mouth 4, make like this this body 1 two ends all can connect other Stainless Steel Tubes.
Embodiment 1: as described in Figure 1, this large-caliber stainless steel thin walled tube is straight-tube shape, is mainly used in rain pipe, also goes for stovepipe and installation pipe.
Large-caliber stainless steel thin walled tube for the preparation of rain pipe
Select the stainless steel of following composition and mass percent: carbon (C): 0.02 % by weight, chromium (Cr): 18.0 % by weight, silicon (Si): 0.8 % by weight, manganese (Mn): 0.7 % by weight, nitrogen (N): 0.03 % by weight, titanium (Ti): 0.4 % by weight, niobium (Nb): 0.4 % by weight, phosphorus (P): 0.02 % by weight, sulphur (S): 0.01 % by weight, surplus is iron (Fe), production technology with Stainless Steel Tube common in prior art: feed stock, calendering, annealing, volume bar becomes pipe, welding, water-cooled is cut, weld grinding, moulding makes the large-caliber stainless steel thin walled tube for rain pipe.Wherein, volume bar becomes the stiffening rib 2 of pipe-in-pipe body 1 and crooked corrugated part 3 all to adopt common expansion reinforcement technology to be processed to form, and body 1 port expansion mouth 4 adopts common expansion technique to be processed to form.
Large-caliber stainless steel thin walled tube for rain pipe has inner wall smooth, and the very little quality of rainwater resistance is light, the advantage that installation and maintenance are convenient, impact resistance is strong.
Embodiment 2: as described in Figure 4, this large-caliber stainless steel thin walled tube is L font, is mainly used in installation pipe, also goes for rain pipe and stovepipe.
Large-caliber stainless steel thin walled tube for the preparation of installation pipe
Select the stainless steel of following composition and mass percent: carbon (C): 0.008 % by weight, chromium (Cr): 18.3 % by weight, silicon (Si): 0.3 % by weight, manganese (Mn): 0.3 % by weight, nitrogen (N): 0.05 % by weight, titanium (Ti): 0.3 % by weight, niobium (Nb): 0.5 % by weight, phosphorus (P): 0.022 % by weight, sulphur (S): 0.002 % by weight, surplus is iron (Fe), production technology with Stainless Steel Tube common in prior art: feed stock, calendering, annealing, volume bar becomes pipe, welding, water-cooled is cut, weld grinding, moulding makes the large-caliber stainless steel thin walled tube for installation pipe.Wherein, volume bar becomes the stiffening rib 2 of pipe-in-pipe body 1 and crooked corrugated part 3 all to adopt common expansion reinforcement technology to be processed to form, and body 1 port expansion mouth 4 adopts common expansion technique to be processed to form.
For the large-caliber stainless steel thin walled tube of installation pipe, have stronger corrosion-resistant, weather proof feature, and more durable in use.
Embodiment 3: as described in Figure 5, this large-caliber stainless steel thin walled tube is zigzag, is mainly used in stovepipe, also goes for rain pipe and installation pipe.
Large-caliber stainless steel thin walled tube for the preparation of stovepipe
Select the stainless steel of following composition and mass percent: carbon (C): 0.01 % by weight, chromium (Cr): 18.0 % by weight, silicon (Si): 0.39 % by weight, manganese (Mn): 0.70 % by weight, nitrogen (N): 0.012 % by weight, titanium (Ti): 0.5 % by weight, niobium (Nb): 0.45 % by weight, phosphorus (P): 0.015 % by weight, sulphur (S): 0.02 % by weight, surplus is iron (Fe), production technology with Stainless Steel Tube common in prior art: feed stock, calendering, annealing, volume bar becomes pipe, welding, water-cooled is cut, weld grinding, moulding makes the large-caliber stainless steel thin walled tube for stovepipe.Wherein, volume bar becomes the stiffening rib 2 of pipe-in-pipe body 1 and crooked corrugated part 3 all to adopt common expansion reinforcement technology to be processed to form, and body 1 port expansion mouth 4 adopts common expansion technique to be processed to form.
For the large-caliber stainless steel thin walled tube of stovepipe, have corrosion resistance, heat resistance, satisfactory mechanical property, the normal temperature processibilities such as deep draw, bending are better, the advantage such as can not harden after heat treatment, health, safety, energy-saving and environmental protection.
The mechanical property that the large-caliber stainless steel thin walled tube that above-mentioned three embodiments of the utility model make shows is as shown in table 2.
Table 2: this large-caliber stainless steel thin walled tube and the comparative example mechanical property table of comparisons
In table 2, comparative example is 443 stainless standard mechanical performance and material behaviors in 400 series.
As can be seen from Table 2, the mechanical property of the large-caliber stainless steel thin walled tube that the utility model makes is greatly improved compared with 443 stainless steels in common stainless steel, and mechanical property is more excellent.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. a large-caliber stainless steel thin walled tube, comprise and be body cylindraceous, it is characterized in that, described body adopts stainless steel material to make and body wall thickness is 0.25mm～0.6mm, on described body, be axially evenly distributed with some stiffening ribs, on described body, have corrugated part, described corrugated part is become by some compact arranged ring-type arc convex sets.
2. large-caliber stainless steel thin walled tube according to claim 1, is characterized in that, described body one end has the expansion mouth of concentric setting and described expansion mouth internal diameter is slightly larger than body caliber.
3. large-caliber stainless steel thin walled tube according to claim 2, is characterized in that, described body two ends all have above-mentioned expansion mouth.
4. according to the large-caliber stainless steel thin walled tube described in claim 1 or 2 or 3, it is characterized in that, described stiffening rib in the form of a ring and outwardly convex, and is connected as a single entity with described body.
5. according to the large-caliber stainless steel thin walled tube described in claim 1 or 2 or 3, it is characterized in that, between two adjacent stiffening ribs, spacing is 20mm～2000mm.
6. according to the large-caliber stainless steel thin walled tube described in claim 1 or 2 or 3, it is characterized in that, described body bore is 65mm～160mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320597776.7U CN203463805U (en) | 2013-09-19 | 2013-09-19 | Large-caliber stainless steel thin-walled tube |
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| CN201320597776.7U CN203463805U (en) | 2013-09-19 | 2013-09-19 | Large-caliber stainless steel thin-walled tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542184A (en) * | 2013-09-19 | 2014-01-29 | 宁波钢汇不锈钢有限公司 | Large-aperture stainless steel thin-walled tube |
| CN109386668A (en) * | 2017-08-09 | 2019-02-26 | 上海众山特殊钢有限公司 | A kind of aviation high pressure oil thin-wall stainless steel road pipe |
-
2013
- 2013-09-19 CN CN201320597776.7U patent/CN203463805U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542184A (en) * | 2013-09-19 | 2014-01-29 | 宁波钢汇不锈钢有限公司 | Large-aperture stainless steel thin-walled tube |
| CN103542184B (en) * | 2013-09-19 | 2017-02-22 | 宁波钢汇不锈钢有限公司 | Large-aperture stainless steel thin-walled tube |
| CN109386668A (en) * | 2017-08-09 | 2019-02-26 | 上海众山特殊钢有限公司 | A kind of aviation high pressure oil thin-wall stainless steel road pipe |
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