CN103537871A - Processing method for vertically extruding ultrahigh pressure container barrel body - Google Patents
Processing method for vertically extruding ultrahigh pressure container barrel body Download PDFInfo
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- CN103537871A CN103537871A CN201310444988.6A CN201310444988A CN103537871A CN 103537871 A CN103537871 A CN 103537871A CN 201310444988 A CN201310444988 A CN 201310444988A CN 103537871 A CN103537871 A CN 103537871A
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Abstract
The invention relates to a processing method for vertically extruding an ultrahigh pressure container barrel body and belongs to the field of pressure container manufacturing. The processing method comprises the following steps of using a steel ingot to heat the ultrahigh pressure container barrel body to be manufactured, descaling the heated steel ingot with high pressure water to remove oxide skin on the surface of the steel ingot, using glass powder to lubricate the surface of the steel ingot descaled by high pressure water, using a sheet stamping machine to manufacture the steel ingot lubricated by the glass powder into a punched blank, carrying out heating, repairing and molding on an end face of the punched blank, returning the punched blank which is heated, repaired and molded to a furnace to be heated, descaling the heated punched blank with high pressure water, lubricating the surface of the punched blank descaled by high pressure water with glass powder, and using a vertical extruding machine to extrude the punched blank lubricated by the glass powder into the ultrahigh pressure container barrel body. Due to extrusion formation, the barrel body is stressed from three directions. Thus, the barrel is more even in deformation and more compact in tissue. Meanwhile, the processing method can reduce blank processing allowance, improves material utilization rate, improves production efficiency and reduces production cost.
Description
Technical field
The present invention is the processing method of vertically pushing ultrahigh pressure vessel cylindrical shell, belongs to pressure vessel and manufactures field.
Background technology
According to the requirement of existing < < ultrahigh pressure vessel safety and technical supervision rules > > TSGR0002-2005, the normal Forging Technology that adopts is manufactured the main pressurized element such as ultrahigh pressure vessel cylindrical shell, and existing Forging Technology technology maturation, can meet the specification requirement of required part, constant product quality.Feature due to ultrahigh pressure vessel operating condition, the typical structure of its cylindrical shell mostly is whole through-hole type, under existing Forging Technology working condition, the most solid forgings that adopt of cylindrical shell are made, and have that blank allowance is large, stock utilization is low, production efficiency is low, the more high drawback of cost.
Summary of the invention:
The object of the present invention is to provide a kind of processing method of vertical extruding ultrahigh pressure vessel cylindrical shell, the method can reduce blank allowance, improves stock utilization, enhance productivity, reduces product cost.
Technical solution:
The inventive method step is as follows: 1) to manufacturing ultrahigh pressure vessel cylindrical shell Heating Steel Ingots; 2) steel ingot after heating carries out the oxide skin that high-pressure water descaling is removed surface of steel ingot; 3) it is lubricated that the surface of steel ingot after high-pressure water descaling is carried out glass dust; 4) steel ingot after lubricated to glass dust is made punching blank with blank machine; 5) punching blank is carried out to end face hot repair mould; 6) the punching blank after hot repair mould is returned to stove heating; 7) the punching blank after heating carries out high-pressure water descaling; 8) it is lubricated that the punching blank surface after high-pressure water descaling is carried out glass dust; 9) the punching blank after lubricated to glass dust extrudes into ultrahigh pressure vessel cylindrical shell by vertical extruder.
Further: to manufacturing ultrahigh pressure vessel cylindrical shell Heating Steel Ingots, heating-up temperature is 1280 ℃～1300 ℃, insulation 5h～8h.
Further: the steel ingot after heating carries out the oxide skin that high-pressure water descaling is removed surface of steel ingot.
Further: the even sprayed glass powder lubricant of surface of steel ingot after high-pressure water descaling.
Further: the steel ingot after lubricated to glass dust is made punching blank with blank machine, after enclosed jumping-up, bores a hole with pecker again.
Further: punching blank is carried out to end face hot repair mould, and equating punching blank end face, carries out chamfered edge by wedge angle position.
Further: the punching blank after hot repair mould is returned to stove heating, and heating-up temperature is 1280 ℃～1300 ℃, insulation 10h～15h.
Further: the punching blank after heating carries out high-pressure water descaling.
Further: the even sprayed glass powder of punching blank surface after high-pressure water descaling is lubricated.
Further: the punching blank after lubricated to glass dust extrudes into ultrahigh pressure vessel cylindrical shell by vertical extruder.
The present invention adopts vertical fashion of extrusion to produce ultrahigh pressure vessel cylindrical shell, be that Heating Steel Ingots, high-pressure water descaling, glass dust are lubricated, punching blank processed, hot repair mould, punching blank return stove heating, high-pressure water descaling, glass dust lubricate, extrude into ultrahigh pressure vessel cylindrical shell, the present invention is owing to adopting extrusion modling, cylindrical shell is subject to three-dimensional compressive stress, be out of shape more even, organize finer and closely, reduce blank allowance simultaneously, improve stock utilization, enhance productivity, reduce product cost.The GYF300-180 autoclave cylindrical shell of take is example, and vertical pressing method is compared with forging method, and stock utilization improves approximately 10%, and the about 4t that saves material saves production cost approximately 3.3 ten thousand yuan.
Accompanying drawing explanation
Fig. 1 is GYF300-180 recipient body blank drawing;
Fig. 2 is that GYF300-180 forges cylindrical shell blank drawing;
Fig. 3 is extruding cylindrical shell grain size figure.
The specific embodiment
Embodiment 1:
The GYF300-180 autoclave cylindrical shell of take is example, GYF300-180 autoclave cylindrical shell finished size specification: maximum outside diameter φ 542mm, and minimum diameter φ 300mm, finished product length 6000mm, cylinder material is 34CrNi3MoVA.While adopting 360MN ferrous metal vertical extruder to push according to accompanying drawing 1, extruding cylindrical shell dimensions: external diameter φ 575mm, internal diameter φ 270mm, length 6450mm, vertically pushes the method step that ultrahigh pressure vessel cylindrical shell takes as follows:
1) to manufacturing ultrahigh pressure vessel cylindrical shell Heating Steel Ingots, heating-up temperature is 1210 ℃ ± 10 ℃, insulation 6.5h.
2) steel ingot after heating carries out the oxide skin that high-pressure water descaling is removed surface of steel ingot, high-pressure water descaling time 40s.
3) the even sprayed glass powder lubricant of the surface of steel ingot after high-pressure water descaling, glass dust consumption 18kg.
4) steel ingot after lubricated to glass dust is made punching blank with blank machine, in jumping-up cylinder, after first enclosed jumping-up, bores a hole with pecker again.
5) punching blank is carried out to end face hot repair mould, equating punching blank end face, carries out chamfered edge by wedge angle position.
6) the punching blank after hot repair mould is returned to stove heating, heating-up temperature is 1210 ℃ ± 10 ℃, insulation 13h.
7) the punching blank after heating carries out high-pressure water descaling, high-pressure water descaling time 38s.
8) the even sprayed glass powder lubricant of the punching blank surface after high-pressure water descaling, glass dust consumption 17kg.
9) the punching blank after lubricated to glass dust extrudes into ultrahigh pressure vessel cylindrical shell by vertical extruder.
The processing method that adopts vertical extruding ultrahigh pressure vessel cylindrical shell, can reduce blank allowance, improves stock utilization, enhance productivity, reduce product cost.The GYF300-180 autoclave cylindrical shell of take is example, and vertical pressing method is compared with forging method, and stock utilization improves approximately 10%, and the about 4t that saves material saves production cost approximately 3.3 ten thousand yuan.
Embodiment 2:
The GYF300-180 autoclave cylindrical shell of take is example, GYF300-180 autoclave cylindrical shell finished size specification: maximum outside diameter φ 542mm, and minimum diameter φ 300mm, finished product length 6000mm, cylinder material is 34CrNi3MoVA.While adopting 360MN ferrous metal vertical extruder to push according to accompanying drawing 1, extruding cylindrical shell dimensions: external diameter φ 575mm, internal diameter φ 270mm, length 6450mm, vertically pushes the method step that ultrahigh pressure vessel cylindrical shell takes as follows:
1) to manufacturing ultrahigh pressure vessel cylindrical shell Heating Steel Ingots, heating-up temperature is 1250 ℃ ± 10 ℃, insulation 6.5h.
2) steel ingot after heating carries out the oxide skin that high-pressure water descaling is removed surface of steel ingot, high-pressure water descaling time 40s.
3) the even sprayed glass powder lubricant of the surface of steel ingot after high-pressure water descaling, glass dust consumption 18kg.
4) steel ingot after lubricated to glass dust is made punching blank with blank machine, in jumping-up cylinder, after first enclosed jumping-up, bores a hole with pecker again.
5) punching blank is carried out to end face hot repair mould, equating punching blank end face, carries out chamfered edge by wedge angle position.
6) the punching blank after hot repair mould is returned to stove heating, heating-up temperature is 1250 ℃ ± 10 ℃, insulation 13h.
7) the punching blank after heating carries out high-pressure water descaling, high-pressure water descaling time 38s.
8) the even sprayed glass powder lubricant of the punching blank surface after high-pressure water descaling, glass dust consumption 17kg.
9) the punching blank after lubricated to glass dust extrudes into ultrahigh pressure vessel cylindrical shell by vertical extruder.
The processing method that adopts vertical extruding ultrahigh pressure vessel cylindrical shell, can reduce blank allowance, improves stock utilization, enhance productivity, reduce product cost.The GYF300-180 autoclave cylindrical shell of take is example, and vertical pressing method is compared with forging method, and stock utilization improves approximately 10%, and the about 4t that saves material saves production cost approximately 3.3 ten thousand yuan.
Embodiment 3:
The GYF300-180 autoclave cylindrical shell of take is example, GYF300-180 autoclave cylindrical shell finished size specification: maximum outside diameter φ 542mm, and minimum diameter φ 300mm, finished product length 6000mm, cylinder material is 34CrNi3MoVA.While adopting 360MN ferrous metal vertical extruder to push according to accompanying drawing 1, extruding cylindrical shell dimensions: external diameter φ 575mm, internal diameter φ 270mm, length 6450mm, vertically pushes the method step that ultrahigh pressure vessel cylindrical shell takes as follows:
1) to manufacturing ultrahigh pressure vessel cylindrical shell Heating Steel Ingots, heating-up temperature is 1270 ℃ ± 10 ℃, insulation 6.5h.
2) steel ingot after heating carries out the oxide skin that high-pressure water descaling is removed surface of steel ingot, high-pressure water descaling time 40s.
3) the even sprayed glass powder lubricant of the surface of steel ingot after high-pressure water descaling, glass dust consumption 18kg.
4) steel ingot after lubricated to glass dust is made punching blank with blank machine, in jumping-up cylinder, after first enclosed jumping-up, bores a hole with pecker again.
5) punching blank is carried out to end face hot repair mould, equating punching blank end face, carries out chamfered edge by wedge angle position.
6) the punching blank after hot repair mould is returned to stove heating, heating-up temperature is 1270 ℃ ± 10 ℃, insulation 13h.
7) the punching blank after heating carries out high-pressure water descaling, high-pressure water descaling time 38s.
8) the even sprayed glass powder lubricant of the punching blank surface after high-pressure water descaling, glass dust consumption 17kg.
9) the punching blank after lubricated to glass dust extrudes into ultrahigh pressure vessel cylindrical shell by vertical extruder.
The processing method that adopts vertical extruding ultrahigh pressure vessel cylindrical shell, can reduce blank allowance, improves stock utilization, enhance productivity, reduce product cost.The GYF300-180 autoclave cylindrical shell of take is example, and vertical pressing method is compared with forging method, and stock utilization improves approximately 10%, and the about 4t that saves material saves production cost approximately 3.3 ten thousand yuan.
Embodiment 4:
The GYF300-180 autoclave cylindrical shell of take is example, GYF300-180 autoclave cylindrical shell finished size specification: maximum outside diameter φ 542mm, and minimum diameter φ 300mm, finished product length 6000mm, cylinder material is 34CrNi3MoVA.While adopting 360MN ferrous metal vertical extruder to push according to accompanying drawing 1, extruding cylindrical shell dimensions: external diameter φ 575mm, internal diameter φ 270mm, length 6450mm, vertically pushes the method step that ultrahigh pressure vessel cylindrical shell takes as follows:
1) to manufacturing ultrahigh pressure vessel cylindrical shell Heating Steel Ingots, heating-up temperature is 1290 ℃ ± 10 ℃, insulation 6.5h.
2) steel ingot after heating carries out the oxide skin that high-pressure water descaling is removed surface of steel ingot, high-pressure water descaling time 40s.
3) the even sprayed glass powder lubricant of the surface of steel ingot after high-pressure water descaling, glass dust consumption 18kg.
4) steel ingot after lubricated to glass dust is made punching blank with blank machine, in jumping-up cylinder, after first enclosed jumping-up, bores a hole with pecker again.
5) punching blank is carried out to end face hot repair mould, equating punching blank end face, carries out chamfered edge by wedge angle position.
6) the punching blank after hot repair mould is returned to stove heating, heating-up temperature is 1290 ℃ ± 10 ℃, insulation 13h.
7) the punching blank after heating carries out high-pressure water descaling, high-pressure water descaling time 38s.
8) the even sprayed glass powder lubricant of the punching blank surface after high-pressure water descaling, glass dust consumption 17kg.
9) the punching blank after lubricated to glass dust extrudes into ultrahigh pressure vessel cylindrical shell by vertical extruder.
The processing method that adopts vertical extruding ultrahigh pressure vessel cylindrical shell, can reduce blank allowance, improves stock utilization, enhance productivity, reduce product cost.The GYF300-180 autoclave cylindrical shell of take is example, and vertical pressing method is compared with forging method, and stock utilization improves approximately 10%, and the about 4t that saves material saves production cost approximately 3.3 ten thousand yuan.
Claims (10)
1. the processing method of vertical extruding ultrahigh pressure vessel cylindrical shell, is characterized in that, method step is as follows: 1) to manufacturing ultrahigh pressure vessel cylindrical shell Heating Steel Ingots; 2) steel ingot after heating carries out the oxide skin that high-pressure water descaling is removed surface of steel ingot; 3) it is lubricated that the surface of steel ingot after high-pressure water descaling is carried out glass dust; 4) steel ingot after lubricated to glass dust is made punching blank with blank machine; 5) punching blank is carried out to end face hot repair mould; 6) the punching blank after hot repair mould is returned to stove heating; 7) the punching blank after heating carries out high-pressure water descaling; 8) it is lubricated that the punching blank surface after high-pressure water descaling is carried out glass dust; 9) the punching blank after lubricated to glass dust extrudes into ultrahigh pressure vessel cylindrical shell by vertical extruder.
2. the processing method of vertical extruding ultrahigh pressure vessel cylindrical shell according to claim 1, is characterized in that, to manufacturing ultrahigh pressure vessel cylindrical shell Heating Steel Ingots, heating-up temperature is 1200 ℃～1300 ℃, insulation 5h～8h.
3. the processing method of vertical extruding ultrahigh pressure vessel cylindrical shell according to claim 1, is characterized in that, the steel ingot after heating carries out the oxide skin that high-pressure water descaling is removed surface of steel ingot.
4. the processing method of vertical extruding ultrahigh pressure vessel cylindrical shell according to claim 1, is characterized in that, the even sprayed glass powder lubricant of surface of steel ingot after high-pressure water descaling.
5. the processing method of vertical extruding ultrahigh pressure vessel cylindrical shell according to claim 1, is characterized in that, the steel ingot after glass dust is lubricated is made punching blank with blank machine, after enclosed jumping-up, bores a hole with pecker again.
6. the processing method of vertical extruding ultrahigh pressure vessel cylindrical shell according to claim 1, is characterized in that, punching blank is carried out to end face hot repair mould, and equating punching blank end face, carries out chamfered edge by wedge angle position.
7. the processing method of vertical extruding ultrahigh pressure vessel cylindrical shell according to claim 1, is characterized in that, the punching blank after hot repair mould is returned to stove heating, and heating-up temperature is 1200 ℃～1300 ℃, insulation 10h～15h.
8. the processing method of vertical extruding ultrahigh pressure vessel cylindrical shell according to claim 1, is characterized in that, the punching blank after heating carries out high-pressure water descaling.
9. the processing method of vertical extruding ultrahigh pressure vessel cylindrical shell according to claim 1, is characterized in that, the even sprayed glass powder lubricant of punching blank surface after high-pressure water descaling.
10. the processing method of vertical extruding ultrahigh pressure vessel cylindrical shell according to claim 1, is characterized in that, the punching blank after glass dust is lubricated extrudes into ultrahigh pressure vessel cylindrical shell by vertical extruder.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384849A (en) * | 2014-10-10 | 2015-03-04 | 中国第一重型机械股份公司 | Integrated extruding, forming and manufacturing method for truss-type pile leg chord of self-elevating platform |
| CN104815863A (en) * | 2015-03-25 | 2015-08-05 | 内蒙古北方重工业集团有限公司 | Detection method for position of blank material |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101028681A (en) * | 2007-04-02 | 2007-09-05 | 上海工程技术大学 | Process for formed hydraulic tappet guide cylinder |
| CN101537438A (en) * | 2009-04-24 | 2009-09-23 | 太原科技大学 | Hot impact extrusion process and device for large annular barrel type forged piece |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104384849A (en) * | 2014-10-10 | 2015-03-04 | 中国第一重型机械股份公司 | Integrated extruding, forming and manufacturing method for truss-type pile leg chord of self-elevating platform |
| CN104815863A (en) * | 2015-03-25 | 2015-08-05 | 内蒙古北方重工业集团有限公司 | Detection method for position of blank material |
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