CN102401196A - High-strength bimetal bent or straight pipeline - Google Patents
High-strength bimetal bent or straight pipeline Download PDFInfo
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- CN102401196A CN102401196A CN2011102067905A CN201110206790A CN102401196A CN 102401196 A CN102401196 A CN 102401196A CN 2011102067905 A CN2011102067905 A CN 2011102067905A CN 201110206790 A CN201110206790 A CN 201110206790A CN 102401196 A CN102401196 A CN 102401196A
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Abstract
The invention discloses a high-strength bimetal bent or straight pipeline which is characterized by comprising a lining and an outer wall which are made of different materials through casting, wherein the pipeline lining is made of alloy steel, and the pipeline outer wall is a welded pipe or seamless pipe. The high-strength bimetal bent or straight pipeline is compounded by lost foam vacuum suction casting or formed by centrifugal casting, an alloy steel lining with wear resistance, heat resistance and corrosion resistance is compounded in an ordinary steel pipe, the actual requirements of wear resistance, heat resistance and corrosion resistance for the pipeline can be satisfied, and the mechanical impact resistance and thermal impact resistance of the pipeline can also be improved. The high-strength bimetal bent or straight pipeline can completely replace the 16 Mn seamless steel pipe, can be made into various shapes including straight pipes, bent pipes, special pipes, reducing pipes and the like and become a first-choice pipeline in the blast furnace water granulated slag system in steel plants, transportation systems of power plant coal dust, dry ash, coal dust and the like and other powder and gas transportation systems.
Description
Technical field
The present invention relates to a kind of high-strength bimetal pipeline, belong to the material technology field.
Background technique
Transporting systems such as blast furnace granulated slag system of steel mill, power plant's coal dust, dry ash, coal dust and other powders, air-transport system generally adopt the 16Mn seamless steel pipe; Its wear-resisting, heat-resisting, corrosion-resistant and mechanical strength, shock resistance etc. all can not satisfy needs of production, and operational efficiency is low.How to utilize new material, adopt new technology and develop the novel pipeline that meets various performance requirements, substitute existing product, become new research contents.
Summary of the invention
Technical problem to be solved by this invention provides the curved straight pipeline of a kind of high-strength bimetal, replaces the 16Mn seamless steel pipe, can satisfy actual wear-resisting, heat-resisting, corrosion-resistant demand to pipeline, has improved anti-mechanical shock, the thermal shock resistance properties of pipeline again.
For solving the problems of the technologies described above, the present invention provides a kind of high-strength bimetal to bend straight pipeline, it is characterized in that, is formed by the liner of different materials and outer wall casting, and the pipe lining material is an alloyed steel, and pipeline outer wall is welded tube or weldless tube.
Forging type is suction pouring or centrifugal casting.
Adopt the compound molding of disappearance mould suction pouring.
The Chemical composition of said inner lining material comprises C, Mn, Si, S, P, V, Cr, Ni, Mo, Cu, many kinds of elements of Re.
The content of each element is respectively: C:1.10%～1.60%, Mn:0.5%～1.2%, Si:0.4%～0.7%, S, P :≤0.05%; V:0.1%～0.4%, Cr:24.0%～28.0%, Ni:0.3%～0.9%; Mo:0.1%～0.3%, Cu:0.2%～0.5%, Re:0.2%.
The beneficial effect that the present invention reached:
The curved straight pipeline of high-strength bimetal of the present invention adopts the compound or centrifugal casting moulding of disappearance mould suction pouring; To have alloyed steel liner wear-resisting, heat-resisting, decay resistance is compounded in the common steel tube; Can satisfy actual wear-resisting, heat-resisting, corrosion-resistant demand, improve anti-mechanical shock, the thermal shock resistance properties of pipeline again pipeline.Can replace the 16Mn seamless steel pipe fully, process multiple shapes such as straight tube, bend pipe, special pipe, reducer, become the first-selected pipeline in transporting systems such as blast furnace granulated slag system of steel mill, power plant's coal dust, dry ash, coal dust and other powders, the air-transport system.
Embodiment
Further describe in the face of the present invention down.Following examples only are used for technological scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
High-strength bimetal of the present invention is bent straight pipeline, is formed by the liner of different materials and outer wall casting, and the pipe lining material is an alloyed steel, and pipeline outer wall is welded tube or weldless tube.
Forging type is disappearance mould suction pouring or centrifugal casting.
The Chemical composition of inner lining material comprises C, Mn, Si, S, P, V, Cr, Ni, Mo, Cu, many kinds of elements of Re.The content of each element is respectively: C:1.10%～1.60%, Mn:0.5%～1.2%, Si:0.4%～0.7%, S, P :≤0.05%; V:0.1%～0.4%, Cr:24.0%～28.0%, Ni:0.3%～0.9%; Mo:0.1%～0.3%, Cu:0.2%～0.5%, Re:0.2%.
The mechanical property that pipeline of the present invention reaches is: compressive strength>=14MPa, resistance to flexure>=8MPa, specific elongation>=6%, impact toughness>=5 J/cm
2
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and distortion, these improvement and distortion also should be regarded as protection scope of the present invention.
Claims (5)
1. the curved straight pipeline of a high-strength bimetal is characterized in that, is cast with outer wall by the liner of different materials to form, and the pipe lining material is an alloyed steel, and pipeline outer wall is welded tube or weldless tube.
2. high-strength bimetal according to claim 1 is bent straight pipeline, it is characterized in that, forging type is suction pouring or centrifugal casting.
3. high-strength bimetal according to claim 1 is bent straight pipeline, it is characterized in that, adopts the compound molding of disappearance mould suction pouring.
4. high-strength bimetal according to claim 1 is bent straight pipeline, it is characterized in that, the Chemical composition of said inner lining material comprises C, Mn, Si, S, P, V, Cr, Ni, Mo, Cu, many kinds of elements of Re.
5. high-strength bimetal according to claim 4 is bent straight pipeline, it is characterized in that the content of each element is respectively: C:1.10%～1.60%; Mn:0.5%～1.2%, Si:0.4%～0.7%, S, P :≤0.05%; V:0.1%～0.4%, Cr:24.0%～28.0%, Ni:0.3%～0.9%; Mo:0.1%～0.3%, Cu:0.2%～0.5%, Re:0.2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102067905A CN102401196A (en) | 2011-07-22 | 2011-07-22 | High-strength bimetal bent or straight pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102067905A CN102401196A (en) | 2011-07-22 | 2011-07-22 | High-strength bimetal bent or straight pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401196A true CN102401196A (en) | 2012-04-04 |
Family
ID=45883685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102067905A Pending CN102401196A (en) | 2011-07-22 | 2011-07-22 | High-strength bimetal bent or straight pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102401196A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156769A (en) * | 2015-07-14 | 2015-12-16 | 山东远大锅炉配件制造有限公司 | Thermometal abrasion-resistant composite pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080198A (en) * | 1977-02-24 | 1978-03-21 | Abex Corporation | Erosion and corrosion resistant alloys containing chromium, nickel and molybdenum |
| US4536232A (en) * | 1983-11-10 | 1985-08-20 | Abex Corporation | Erosion and corrosion resistant cast iron alloy containing chromium, nickel and molybdenum |
| CN85102472A (en) * | 1985-04-01 | 1986-08-06 | 山东省莘县电炉配件厂 | Heat resisting ferro alloy which stands high temp |
| EP0295111A2 (en) * | 1987-06-11 | 1988-12-14 | Aichi Steel Works, Ltd. | A steel having good wear resistance |
| CN1032680A (en) * | 1987-10-31 | 1989-05-03 | 冶金工业部钢铁研究总院 | Rare earth, high chromium content ferrite Heat resisting cast steel |
| CN1088998A (en) * | 1992-12-31 | 1994-07-06 | 北京科技大学 | High toughness of high strength steel oil pipe |
| CN1116142A (en) * | 1995-05-27 | 1996-02-07 | 西安建筑科技大学 | Making technology for bimetal pipe |
-
2011
- 2011-07-22 CN CN2011102067905A patent/CN102401196A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080198A (en) * | 1977-02-24 | 1978-03-21 | Abex Corporation | Erosion and corrosion resistant alloys containing chromium, nickel and molybdenum |
| US4536232A (en) * | 1983-11-10 | 1985-08-20 | Abex Corporation | Erosion and corrosion resistant cast iron alloy containing chromium, nickel and molybdenum |
| CN85102472A (en) * | 1985-04-01 | 1986-08-06 | 山东省莘县电炉配件厂 | Heat resisting ferro alloy which stands high temp |
| EP0295111A2 (en) * | 1987-06-11 | 1988-12-14 | Aichi Steel Works, Ltd. | A steel having good wear resistance |
| CN1032680A (en) * | 1987-10-31 | 1989-05-03 | 冶金工业部钢铁研究总院 | Rare earth, high chromium content ferrite Heat resisting cast steel |
| CN1088998A (en) * | 1992-12-31 | 1994-07-06 | 北京科技大学 | High toughness of high strength steel oil pipe |
| CN1116142A (en) * | 1995-05-27 | 1996-02-07 | 西安建筑科技大学 | Making technology for bimetal pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156769A (en) * | 2015-07-14 | 2015-12-16 | 山东远大锅炉配件制造有限公司 | Thermometal abrasion-resistant composite pipe |
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Application publication date: 20120404 |