CN104831186A - Stainless steel tube for handrails and manufacturing method thereof - Google Patents
Stainless steel tube for handrails and manufacturing method thereof Download PDFInfo
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- CN104831186A CN104831186A CN201510277938.2A CN201510277938A CN104831186A CN 104831186 A CN104831186 A CN 104831186A CN 201510277938 A CN201510277938 A CN 201510277938A CN 104831186 A CN104831186 A CN 104831186A
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Abstract
The invention discloses a stainless steel tube for handrails and a manufacturing method thereof. The stainless steel tube comprises an inner steel tube, an outer steel tube and a middle steel tube; the inner steel tube is disposed within and is made of stainless steel; the outer steel tube is disposed outside and is made of stainless steel; the middle steel tube is disposed between the outer steel tube and the inner steel tube; heat-insulating material is provided between the inner steel tube and the middle steel tube and between the middle steel tube and the outer steel tube. The manufacturing method of the stainless steel tube mainly includes: manufacturing the inner and outer steel tubes, manufacturing the middle steel tube, compounding the middle steel tube and compounding the outer steel tube. The stainless steel tube is moderate in manufacturing cost, high in mechanical strength, good in corrosion resistance, mild to touch and widely applicable.
Description
Technical field
The present invention relates to a kind of building materials, particularly relate to a kind of handrail stainless-steel pipe and manufacture method thereof.
Background technology
The handrail of handrail stainless-steel pipe as urban operating mechanism fence, the vehicles and the finishing material of luggage carrier, medicine equipment, body-building apparatus and mansion, existing stainless steel composite pipe is internal layer is carbon steel tubing, and skin is stainless steel tube structure.The manufacturing process of this kind of stainless steel composite pipe is first rolled by carbon steel band rolling machine, is then welded into carbon steel pipe with high-frequency induction welder, then is welded into multiple-unit tube work in-process by argon welder; Multiple-unit tube work in-process are vertical by many groups again in advancing, and horizontal format roll repeatedly rolling extrusion, to trimmed size size, after straightener alignment, through polishing machine polishing, then cuts into multiple-unit tube finished product by specified length.This manufacturing process need through twice pipe crimping, the Coating combination portion of its stainless steel tube and carbon steel pipe is more loose, have impact on the working strength of product, the tensile strength of this composite steel tube and welding strength are less than 500Mpa, and internal layer is carbon steel tubing, and inner steel pipe easily corrodes, have influence on the work-ing life of handrail, simultaneously because ectonexine is all firm structure, thermal conductivity is large, ice-cold in the feel of microthermal climate handrail.
Summary of the invention
The object of the invention is for the problems referred to above, a kind of physical strength is high, corrosion resistance nature high and low temperature weather feel gentle and production cost is moderate a kind of handrail stainless-steel pipe and manufacture method thereof are provided.
For reaching above-mentioned purpose, the invention provides a kind of handrail stainless-steel pipe, described handrail stainless-steel pipe comprises:
Interior steel pipe, described interior steel pipe is arranged on the internal layer of described handrail stainless-steel pipe, and the material of described interior steel pipe is stainless steel;
Outer steel pipe, described outer steel pipe is arranged on the skin of described handrail stainless-steel pipe, and the material of described outer steel pipe is stainless steel;
It is characterized in that, between described interior steel pipe and described outer steel pipe, be at least filled with one deck lagging material.
Further, described interior steel pipe and described outer steel pipe are round steel pipe, and described interior steel pipe is equal with the thickness of described outer steel pipe, are 1.0-2.0mm;
Between described interior steel pipe and described outer steel pipe, be also provided with middle steel pipe, between described interior steel pipe and described middle steel pipe and between described middle steel pipe and described outer steel pipe, be all filled with lagging material;
The material of described middle steel pipe is structural carbon steel, described middle steel pipe is round rectangle pipe, the inner side-wall of described middle steel pipe and the outer side wall of described interior steel pipe tangent, the outer side wall of described middle steel pipe fillet and the inner side-wall of described outer steel pipe tangent, the thickness of described middle steel pipe is 2.0-4.0mm, the chamfer radius of the outer side wall of described middle steel pipe fillet is equal with the radius of the inner side-wall of described outer steel pipe, the chamfer radius of the outer side wall of described fillet is 2-4 times of the chamfer radius of the inner side-wall of described fillet, the outer side wall arc length of described fillet is 2-3 times of the thickness of described outer steel pipe,
The material composition of described interior steel pipe and described outer steel pipe is by mass percentage: carbon 0.02% ~ 0.10%, silicon 0.22% ~ 0.46%, manganese 0.65% ~ 1.05%, chromium 0.45% ~ 0.80%, nickel 1.20% ~ 1.45%, phosphorus 0 ~ 0.012%, sulphur 0 ~ 0.012%, titanium 0.02% ~ 0.03%, vanadium 0.020% ~ 0.042%, compound rare-earth 0.08-0.10%, cadmium 0.02% ~ 0.05%, boron 0.0040% ~ 0.0055%, oxygen≤0.0012%, nitrogen≤0.0060%, hydrogen≤0.0001%, arsenic≤0.010%, plumbous≤0.010%, tin≤0.010%, antimony≤0.010%, surplus is iron and other trace impurities inevitable, described compound rare-earth is Gd10-12%, Pr 5-8%, Er 10-12%, Ho 10-12%, Nd 10-12%, Sm 8-10% by mass percentage, and surplus is Tm.
For achieving the above object, present invention also offers a kind of method manufacturing above-mentioned handrail stainless-steel pipe, the method comprises the steps:
(1) steel pipe and outer steel pipe in stainless steel is manufactured:
A1 smelts: desulfurizing iron is skimmed, converter smelting, slag-stopping tapping, ladle deoxidation alloy rare earth, liquid steel refining;
B1 hot rolling: pole base continuous casting, the heating of pole base, cross piercing, sizing processing, wherein, first heat pole by Sloping Hearth Heating Furnace, base control temperature is 1150-1200 DEG C, two-roller skew-rolling machine is adopted to carry out cross piercing to the pole base after heating again, carry out sizing processing with three-roll sizing mill to the hollow billet after cross piercing afterwards, last air cooling obtains stainless-steel seamless pipe pipe.
(2) steel pipe in the middle of structural carbon steel is manufactured:
A2 smelts: desulfurizing iron is skimmed, converter smelting, slag-stopping tapping, ladle deoxidation alloying, liquid steel refining; Described structural carbon steel material composition is by mass percentage: carbon 0.35% ~ 0.45%, manganese 0.75% ~ 1.25%, phosphorus 0 ~ 0.015%, sulphur 0 ~ 0.015%, oxygen≤0.0015%, nitrogen≤0.0060%, hydrogen≤0.0001%, arsenic≤0.010%, plumbous≤0.010%, tin≤0.010%, antimony≤0.010%, surplus is iron and other trace impurities inevitable;
B2 hot rolling: pole base continuous casting, the heating of pole base, cross piercing, sizing processing, wherein, first heat pole by Sloping Hearth Heating Furnace, base control temperature is 1050-1120 DEG C, two-roller skew-rolling machine is adopted to carry out cross piercing to the pole base after heating again, carry out sizing processing with three-roll sizing mill to the hollow billet after cross piercing afterwards, last air cooling obtains circular structural carbon steel seamless steel tube blank;
C2 round rectangle pipe drawing is shaping: the circular structural carbon steel seamless steel tube blank obtained by hot-roll forming is shaped to the inside and outside round rectangle pipe with rounded corners through the first internal mold and the first external mold drawing;
(3) shaping handrail stainless-steel pipe:
Steel pipe compound in the middle of a3: by the heatpiston of interior steel pipe outer side wall coating 5-10mm thickness; By described round rectangle pipe box being coated with in heatpiston on steel pipe, then through the second internal mold and the second external mold drawing compound;
The outer steel pipe compound of b3: by the heatpiston of the composite steel tube outer side wall of step a3 drawing compound coating 5-10mm thickness; By outer steel pipe socket on the composite steel tube being coated with heatpiston, then through the 3rd internal mold and the 3rd external mold drawing compound, be shaped to handrail stainless-steel pipe.
Further, in described first internal mold and described first external mold drawing process, in described second internal mold and described second external mold drawing process and in described 3rd internal mold and described 3rd external mold drawing process, adopt drawing lubrication emulsion, described drawing lubrication emulsion feed composition and weight percent as follows: clorafin 2 ~ 4%, 2, 6-ditertbutylparacresol 6 ~ 8%, zinc dialkyl dithiophosphate 6 ~ 8%, poly-n-butyl vinyl ether 12 ~ 15%, trolamine 13 ~ 15%, lead naphthenate 10 ~ 12%, phosphorus benzene bis-acid potassium dibutylester 7 ~ 9%, machinery oil 1 ~ 26%, surplus is transformer oil.
Beneficial effect:
This handrail advantage of stainless-steel pipe and manufacture method thereof is: the stainless-steel pipe that 1, inside and outside employing is thinner, adopt unique steel chemical composition, decrease the content of nickel, a small amount of with the addition of compound rare-earth, physical strength and the corrosion resistance nature of prestressed draw-bar can either be ensured, additionally reduce cost; And the middle round rectangle pipe adopting thicker structural carbon steel material, further saves material cost, greatly can also improve the physical strength of handrail stainless-steel pipe.2, middle steel pipe adopts round rectangle pipe, both ensure that the combined strength bination of rectangular pipe and inside and outside steel pipe, and has had the bending resistance that greatly can improve handrail stainless-steel pipe.3, all extending oil heatpiston between interior steel pipe and middle steel pipe and between middle steel pipe and outer steel pipe, the defect of handrail ice-cold feel when effectively overcoming microthermal climate.4, in each drawing process, all adopt the drawing lubrication emulsion of improvement, substantially increase drawing efficiency, and improve the surface quality of steel pipe.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of handrail stainless-steel pipe of the present invention;
Fig. 2 is the schematic diagram of the middle steel pipe of handrail stainless-steel pipe of the present invention;
Fig. 3 is the manufacture method schematic flow sheet of handrail stainless-steel pipe of the present invention.
Embodiment
Embodiment one
As Figure 1-3, handrail stainless-steel pipe 6 of the present invention comprises:
Interior steel pipe 5, described interior steel pipe 5 is arranged on the internal layer of described handrail stainless-steel pipe 6, and the material of described interior steel pipe 5 is stainless steel;
Outer steel pipe 1, described outer steel pipe 1 is arranged on the skin of described handrail stainless-steel pipe, and the material of described outer steel pipe 1 is stainless steel; Described interior steel pipe 5 and described outer steel pipe 1 are round steel pipe, and described interior steel pipe 5 is equal with the thickness of described outer steel pipe 1, is 1.0mm;
Between described interior steel pipe and described outer steel pipe, be also provided with middle steel pipe 3, between described interior steel pipe 5 and described middle steel pipe 3 and between described middle steel pipe 3 and described outer steel pipe 1, be all filled with lagging material (2,4), the material of described middle steel pipe 3 is structural carbon steel, described middle steel pipe 3 is round rectangle pipe, the inner side-wall of described middle steel pipe 3 and the outer side wall of described interior steel pipe 5 tangent, the outer side wall of the fillet 7 of described middle steel pipe 3 and the inner side-wall of described outer steel pipe 1 tangent, the thickness of described middle steel pipe 3 is 2.0mm, the chamfer radius of the outer side wall of the fillet 7 of described middle steel pipe 3 is equal with the radius of the inner side-wall of described outer steel pipe 1, the chamfer radius of the outer side wall of described fillet 7 is 2 times of the chamfer radius of the inner side-wall of described fillet 7, the outer side wall arc length of described fillet 7 is 2 times of the thickness of described outer steel pipe 1.
The material composition of described interior steel pipe and described outer steel pipe is by mass percentage: carbon 0.08%, silicon 0.38%, manganese 1.00%, chromium 0.65%, nickel 1.22%, phosphorus 0 ~ 0.012%, sulphur 0 ~ 0.012%, titanium 0.02% ~ 0.03%, vanadium 0.020% ~ 0.042%, compound rare-earth 0.090%, cadmium 0.04%, boron 0.0045%, oxygen≤0.0012%, nitrogen≤0.0060%, hydrogen≤0.0001%, arsenic≤0.010%, plumbous≤0.010%, tin≤0.010%, antimony≤0.010%, surplus is iron and other trace impurities inevitable; Described compound rare-earth is Gd 10%, Pr 8%, Er 10%, Ho 12%, Nd 10%, Sm 10% by mass percentage, and surplus is Tm.
For achieving the above object, the present embodiment additionally provides a kind of method manufacturing above-mentioned handrail stainless-steel pipe, and the method comprises the steps:
(1) steel pipe and outer steel pipe in stainless steel is manufactured:
A1 smelts: desulfurizing iron is skimmed, converter smelting, slag-stopping tapping, ladle deoxidation alloy rare earth, liquid steel refining;
B1 hot rolling: pole base continuous casting, the heating of pole base, cross piercing, sizing processing, wherein, first heat pole by Sloping Hearth Heating Furnace, base control temperature is 1180 DEG C, two-roller skew-rolling machine is adopted to carry out cross piercing to the pole base after heating again, carry out sizing processing with three-roll sizing mill to the hollow billet after cross piercing afterwards, last air cooling obtains stainless-steel seamless pipe pipe.
(2) steel pipe in the middle of structural carbon steel is manufactured:
A2 smelts: desulfurizing iron is skimmed, converter smelting, slag-stopping tapping, ladle deoxidation alloying, liquid steel refining; Described structural carbon steel material composition is by mass percentage: carbon 0.40%, manganese 1.20%, phosphorus 0 ~ 0.015%, sulphur 0 ~ 0.015%, oxygen≤0.0015%, nitrogen≤0.0060%, hydrogen≤0.0001%, arsenic≤0.010%, plumbous≤0.010%, tin≤0.010%, antimony≤0.010%, surplus is iron and other trace impurities inevitable;
B2 hot rolling: pole base continuous casting, the heating of pole base, cross piercing, sizing processing, wherein, first heat pole by Sloping Hearth Heating Furnace, base control temperature is 1110 DEG C, two-roller skew-rolling machine is adopted to carry out cross piercing to the pole base after heating again, carry out sizing processing with three-roll sizing mill to the hollow billet after cross piercing afterwards, last air cooling obtains circular structural carbon steel seamless steel tube blank;
C2 round rectangle pipe drawing is shaping: the circular structural carbon steel seamless steel tube blank obtained by hot-roll forming is shaped to the inside and outside round rectangle pipe with rounded corners through the first internal mold and the first external mold drawing;
(3) shaping handrail stainless-steel pipe:
Steel pipe compound in the middle of a3: by the heatpiston of interior steel pipe outer side wall coating 5mm thickness; By described round rectangle pipe box being coated with in heatpiston on steel pipe, then through the second internal mold and the second external mold drawing compound;
The outer steel pipe compound of b3: by the heatpiston of the composite steel tube outer side wall of step a3 drawing compound coating 5mm thickness; By outer steel pipe socket on the composite steel tube being coated with heatpiston, then through the 3rd internal mold and the 3rd external mold drawing compound, be shaped to handrail stainless-steel pipe.
Further, in described first internal mold and described first external mold drawing process, in described second internal mold and described second external mold drawing process and in described 3rd internal mold and described 3rd external mold drawing process, adopt drawing lubrication emulsion, described drawing lubrication emulsion feed composition and weight percent as follows: clorafin 3%, 2, 6-ditertbutylparacresol 7%, zinc dialkyl dithiophosphate 7%, poly-n-butyl vinyl ether 12%, trolamine 15%, lead naphthenate 10%, phosphorus benzene bis-acid potassium dibutylester 9%, machinery oil 20%, surplus is transformer oil.
Embodiment two
As Figure 1-3, described handrail stainless-steel pipe 6 comprises:
Interior steel pipe 5, described interior steel pipe 5 is arranged on the internal layer of described handrail stainless-steel pipe 6, and the material of described interior steel pipe 5 is stainless steel;
Outer steel pipe 1, described outer steel pipe 1 is arranged on the skin of described handrail stainless-steel pipe, and the material of described outer steel pipe 1 is stainless steel; Described interior steel pipe 5 and described outer steel pipe 1 are round steel pipe, and described interior steel pipe 5 is equal with the thickness of described outer steel pipe 1, is 2.0mm;
Between described interior steel pipe and described outer steel pipe, be also provided with middle steel pipe 3, between described interior steel pipe 5 and described middle steel pipe 3 and between described middle steel pipe 3 and described outer steel pipe 1, be all filled with lagging material (2,4), the material of described middle steel pipe 3 is structural carbon steel, described middle steel pipe 3 is round rectangle pipe, the inner side-wall of described middle steel pipe 3 and the outer side wall of described interior steel pipe 5 tangent, the outer side wall of the fillet 7 of described middle steel pipe 3 and the inner side-wall of described outer steel pipe 1 tangent, the thickness of described middle steel pipe 3 is 4.0mm, the chamfer radius of the outer side wall of the fillet 7 of described middle steel pipe 3 is equal with the radius of the inner side-wall of described outer steel pipe 1, the chamfer radius of the outer side wall of described fillet 7 is 4 times of the chamfer radius of the inner side-wall of described fillet 7, the outer side wall arc length of described fillet 7 is 3 times of the thickness of described outer steel pipe 1.
The material composition of described interior steel pipe and described outer steel pipe is by mass percentage: carbon 0.06%, silicon 0.28%, manganese 0.95%, chromium 0.48%, nickel 1.28%, phosphorus 0 ~ 0.012%, sulphur 0 ~ 0.012%, titanium 0.02%, vanadium 0.030%, compound rare-earth 0.10%, cadmium 0.04%, boron 0.0055%, oxygen≤0.0012%, nitrogen≤0.0060%, hydrogen≤0.0001%, arsenic≤0.010%, plumbous≤0.010%, tin≤0.010%, antimony≤0.010%, surplus is iron and other trace impurities inevitable; Described compound rare-earth is Gd 12%, Pr 8%, Er 12%, Ho 10%, Nd 12%, Sm 8% by mass percentage, and surplus is Tm.
For achieving the above object, the present embodiment additionally provides a kind of method manufacturing above-mentioned handrail stainless-steel pipe, and the method comprises the steps:
(1) steel pipe and outer steel pipe in stainless steel is manufactured:
A1 smelts: desulfurizing iron is skimmed, converter smelting, slag-stopping tapping, ladle deoxidation alloy rare earth, liquid steel refining;
B1 hot rolling: pole base continuous casting, the heating of pole base, cross piercing, sizing processing, wherein, first heat pole by Sloping Hearth Heating Furnace, base control temperature is 1160 DEG C, two-roller skew-rolling machine is adopted to carry out cross piercing to the pole base after heating again, carry out sizing processing with three-roll sizing mill to the hollow billet after cross piercing afterwards, last air cooling obtains stainless-steel seamless pipe pipe.
(2) steel pipe in the middle of structural carbon steel is manufactured:
A2 smelts: desulfurizing iron is skimmed, converter smelting, slag-stopping tapping, ladle deoxidation alloying, liquid steel refining; Described structural carbon steel material composition is by mass percentage: carbon 0.45%, manganese 0.80%%, phosphorus 0 ~ 0.015%, sulphur 0 ~ 0.015%, oxygen≤0.0015%, nitrogen≤0.0060%, hydrogen≤0.0001%, arsenic≤0.010%, plumbous≤0.010%, tin≤0.010%, antimony≤0.010%, surplus is iron and other trace impurities inevitable;
B2 hot rolling: pole base continuous casting, the heating of pole base, cross piercing, sizing processing, wherein, first heat pole by Sloping Hearth Heating Furnace, base control temperature is 1080 DEG C, two-roller skew-rolling machine is adopted to carry out cross piercing to the pole base after heating again, carry out sizing processing with three-roll sizing mill to the hollow billet after cross piercing afterwards, last air cooling obtains circular structural carbon steel seamless steel tube blank;
C2 round rectangle pipe drawing is shaping: the circular structural carbon steel seamless steel tube blank obtained by hot-roll forming is shaped to the inside and outside round rectangle pipe with rounded corners through the first internal mold and the first external mold drawing;
(3) shaping handrail stainless-steel pipe:
Steel pipe compound in the middle of a3: by the heatpiston of interior steel pipe outer side wall coating 10mm thickness; By described round rectangle pipe box being coated with in heatpiston on steel pipe, then through the second internal mold and the second external mold drawing compound;
The outer steel pipe compound of b3: by the heatpiston of the composite steel tube outer side wall of step a3 drawing compound coating 10mm thickness; By outer steel pipe socket on the composite steel tube being coated with heatpiston, then through the 3rd internal mold and the 3rd external mold drawing compound, be shaped to handrail stainless-steel pipe.
Further, in described first internal mold and described first external mold drawing process, in described second internal mold and described second external mold drawing process and in described 3rd internal mold and described 3rd external mold drawing process, adopt drawing lubrication emulsion, described drawing lubrication emulsion feed composition and weight percent as follows: clorafin 3%, 2, 6-ditertbutylparacresol 7%, zinc dialkyl dithiophosphate 6%, poly-n-butyl vinyl ether 15%, trolamine 13%, lead naphthenate 12%, phosphorus benzene bis-acid potassium dibutylester 9%, machinery oil 18%, surplus is transformer oil.
Finally to should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although be explained in detail the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (4)
1. a handrail stainless-steel pipe, described handrail stainless-steel pipe comprises:
Interior steel pipe, described interior steel pipe is arranged on the internal layer of described handrail stainless-steel pipe, and the material of described interior steel pipe is stainless steel;
Outer steel pipe, described outer steel pipe is arranged on the skin of described handrail stainless-steel pipe, and the material of described outer steel pipe is stainless steel;
It is characterized in that, between described interior steel pipe and described outer steel pipe, be at least filled with one deck lagging material.
2. handrail stainless-steel pipe as claimed in claim 1, is characterized in that:
Described interior steel pipe and described outer steel pipe are round steel pipe, and described interior steel pipe is equal with the thickness of described outer steel pipe, are 1.0-2.0mm;
Between described interior steel pipe and described outer steel pipe, be also provided with middle steel pipe, between described interior steel pipe and described middle steel pipe and between described middle steel pipe and described outer steel pipe, be all filled with lagging material;
The material of described middle steel pipe is structural carbon steel, described middle steel pipe is round rectangle pipe, the inner side-wall of described middle steel pipe and the outer side wall of described interior steel pipe tangent, the outer side wall of the fillet of described middle steel pipe and the inner side-wall of described outer steel pipe tangent, the thickness of described middle steel pipe is 2.0-4.0mm, the chamfer radius of the outer side wall of the fillet of described middle steel pipe is equal with the radius of the inner side-wall of described outer steel pipe, the chamfer radius of the outer side wall of described fillet is 2-4 times of the chamfer radius of the inner side-wall of described fillet, the outer side wall arc length of described fillet is 2-3 times of the thickness of described outer steel pipe,
The material composition of described interior steel pipe and described outer steel pipe is by mass percentage: carbon 0.02% ~ 0.10%, silicon 0.22% ~ 0.46%, manganese 0.65% ~ 1.05%, chromium 0.45% ~ 0.80%, nickel 1.20% ~ 1.45%, phosphorus 0 ~ 0.012%, sulphur 0 ~ 0.012%, titanium 0.02% ~ 0.03%, vanadium 0.020% ~ 0.042%, compound rare-earth 0.08-0.10%, cadmium 0.02% ~ 0.05%, boron 0.0040% ~ 0.0055%, oxygen≤0.0012%, nitrogen≤0.0060%, hydrogen≤0.0001%, arsenic≤0.010%, plumbous≤0.010%, tin≤0.010%, antimony≤0.010%, surplus is iron and other trace impurities inevitable, described compound rare-earth is Gd10-12%, Pr 5-8%, Er 10-12%, Ho 10-12%, Nd 10-12%, Sm 8-10% by mass percentage, and surplus is Tm.
3. manufacture a manufacture method for the arbitrary handrail stainless-steel pipe of the claims 1-2, the method comprises the steps:
(1) steel pipe and outer steel pipe in stainless steel is manufactured:
A1 smelts: desulfurizing iron is skimmed, converter smelting, slag-stopping tapping, ladle deoxidation alloy rare earth, liquid steel refining;
B1 hot rolling: pole base continuous casting, the heating of pole base, cross piercing, sizing processing, wherein, first heat pole by Sloping Hearth Heating Furnace, base control temperature is 1150-1200 DEG C, two-roller skew-rolling machine is adopted to carry out cross piercing to the pole base after heating again, carry out sizing processing with three-roll sizing mill to the hollow billet after cross piercing afterwards, last air cooling obtains stainless-steel seamless pipe pipe.
(2) steel pipe in the middle of structural carbon steel is manufactured:
A2 smelts: desulfurizing iron is skimmed, converter smelting, slag-stopping tapping, ladle deoxidation alloying, liquid steel refining; Described structural carbon steel material composition is by mass percentage: carbon 0.35% ~ 0.45%, manganese 0.75% ~ 1.25%, phosphorus 0 ~ 0.015%, sulphur 0 ~ 0.015%, oxygen≤0.0015%, nitrogen≤0.0060%, hydrogen≤0.0001%, arsenic≤0.010%, plumbous≤0.010%, tin≤0.010%, antimony≤0.010%, surplus is iron and other trace impurities inevitable;
B2 hot rolling: pole base continuous casting, the heating of pole base, cross piercing, sizing processing, wherein, first heat pole by Sloping Hearth Heating Furnace, base control temperature is 1050-1120 DEG C, two-roller skew-rolling machine is adopted to carry out cross piercing to the pole base after heating again, carry out sizing processing with three-roll sizing mill to the hollow billet after cross piercing afterwards, last air cooling obtains circular structural carbon steel seamless steel tube blank;
C2 round rectangle pipe drawing is shaping: the circular structural carbon steel seamless steel tube blank obtained by hot-roll forming is shaped to the inside and outside round rectangle pipe with rounded corners through the first internal mold and the first external mold drawing;
(3) shaping handrail stainless-steel pipe:
Steel pipe compound in the middle of a3: by the heatpiston of interior steel pipe outer side wall coating 5-10mm thickness; By described round rectangle pipe box being coated with in heatpiston on steel pipe, then through the second internal mold and the second external mold drawing compound;
The outer steel pipe compound of b3: by the heatpiston of the composite steel tube outer side wall of step a3 drawing compound coating 5-10mm thickness; By outer steel pipe socket on the composite steel tube being coated with heatpiston, then through the 3rd internal mold and the 3rd external mold drawing compound, be shaped to handrail stainless-steel pipe.
4. the manufacture method of handrail stainless-steel pipe as claimed in claim 3, is characterized in that:
In described first internal mold and described first external mold drawing process, in described second internal mold and described second external mold drawing process and in described 3rd internal mold and described 3rd external mold drawing process, adopt drawing lubrication emulsion, described drawing lubrication emulsion feed composition and weight percent as follows: clorafin 2 ~ 4%, 2, 6-ditertbutylparacresol 6 ~ 8%, zinc dialkyl dithiophosphate 6 ~ 8%, poly-n-butyl vinyl ether 12 ~ 15%, trolamine 13 ~ 15%, lead naphthenate 10 ~ 12%, phosphorus benzene bis-acid potassium dibutylester 7 ~ 9%, machinery oil 1 ~ 26%, surplus is transformer oil.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238502A (en) * | 2016-07-29 | 2016-12-21 | 新昌县长城空调部件有限公司 | Air conditioning for automobiles pipe assembly manufacturing process |
| CN108637598A (en) * | 2018-04-28 | 2018-10-12 | 王彩霞 | Dumbbell, barbell handle anti-oxidation metal surface manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161134A (en) * | 2001-11-22 | 2003-06-06 | Fujikoo:Kk | Metal fiber cylindrical body for automobile muffler or the like |
| CN2903385Y (en) * | 2006-05-18 | 2007-05-23 | 李长城 | Ventilating duct for engineering tunnel |
| CN101233360A (en) * | 2005-06-06 | 2008-07-30 | 卡伯特公司 | Insulated pipe and method for preparing same |
| CN202391009U (en) * | 2011-11-08 | 2012-08-22 | 南通金恒不锈钢制管有限公司 | Composite stainless steel pipe |
| CN103088960A (en) * | 2011-11-08 | 2013-05-08 | 南通金恒不锈钢制管有限公司 | Composite stainless steel pipe |
-
2015
- 2015-05-21 CN CN201510277938.2A patent/CN104831186B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161134A (en) * | 2001-11-22 | 2003-06-06 | Fujikoo:Kk | Metal fiber cylindrical body for automobile muffler or the like |
| CN101233360A (en) * | 2005-06-06 | 2008-07-30 | 卡伯特公司 | Insulated pipe and method for preparing same |
| CN2903385Y (en) * | 2006-05-18 | 2007-05-23 | 李长城 | Ventilating duct for engineering tunnel |
| CN202391009U (en) * | 2011-11-08 | 2012-08-22 | 南通金恒不锈钢制管有限公司 | Composite stainless steel pipe |
| CN103088960A (en) * | 2011-11-08 | 2013-05-08 | 南通金恒不锈钢制管有限公司 | Composite stainless steel pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238502A (en) * | 2016-07-29 | 2016-12-21 | 新昌县长城空调部件有限公司 | Air conditioning for automobiles pipe assembly manufacturing process |
| CN108637598A (en) * | 2018-04-28 | 2018-10-12 | 王彩霞 | Dumbbell, barbell handle anti-oxidation metal surface manufacturing method |
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| CN104831186B (en) | 2016-10-26 |
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