CN104786010A - Manufacturing method for nickel composite board end sockets - Google Patents
Manufacturing method for nickel composite board end sockets Download PDFInfo
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- CN104786010A CN104786010A CN201410042746.9A CN201410042746A CN104786010A CN 104786010 A CN104786010 A CN 104786010A CN 201410042746 A CN201410042746 A CN 201410042746A CN 104786010 A CN104786010 A CN 104786010A
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- end socket
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- compound board
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
Abstract
The invention relates to a metal material machining technology and manufacturing method, in particular to a manufacturing method for nickel composite board end sockets. The manufacturing method comprises the steps of designing a die; calculating the diameter of an upper die pressure head, the diameter of an outlet of a lower die pull ring, the gap between an upper die and a lower die and the circular bead of the lower die pull ring; splicing composite boards; carrying out penetrant flaw detection; carrying out ultrasonic detection; polishing and cleaning the die; carrying out earlier stage processing of blanks; carrying out heating through a natural gas furnace; carrying out stamping forming, wherein three-time forming is adopted for the forming technology; carrying out spinning forming; cutting grooves; carrying out acid dipping; carrying out polishing; carrying out penetrant flaw detection and ultrasonic detection; stacking the end sockets. By means of the method, the stamping process is stable, transformation is even and smooth, a determined hot working system is feasible, the technology parameters are reasonable, control over the dimension of workpieces is good, metal streamline distribution is reasonable, and performance is stable.
Description
Technical field
The present invention relates to a kind of metal material processing technique manufacturing method, particularly a kind of manufacture method of nickel compound board end socket.
Background technology
Nickel compound board is a kind of excellent structural timber, and along with the expansion year by year of its consumption, the application in the processing and manufacturing of various engineering structure and equipment gets more and more.Plastic deformation difference is there is due to during nickel compound board cold forming, easy to crack, and the shortcoming such as screen resilience is large, make its formed machining more difficult, if method is improper or technique is unreasonable, often cause workpiece to meet technical requirement, be shaped comparatively difficulty, as easy as rolling off a logly cause the problem such as to tear during shaping, cause and scrap.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, thus a kind of manufacture method of nickel compound board end socket is provided, punching course is stablized, be out of shape even, smooth and easy, the hot-working system determined is feasible, and technological parameter is reasonable, and workpiece size controls better, metal streamline distribution is reasonable, stable performance.
According to technical scheme provided by the invention, a kind of manufacture method of nickel compound board end socket, comprising:
(1), Design of Dies: during Design of Dies, larger factor is affected mainly to forming process and product size: patrix pressure head diameter D
1, counterdie draw ring outlet diameter D
2, the gap Z of upper and lower intermode, counterdie draw ring fillet R selects;
Patrix: the end socket after punching press is in cooling procedure, and metal contracts, makes end socket diameter reduce.Therefore, during patrix design, the size of patrix pressure head diameter should suitably be strengthened.Patrix pressure head diameter D
1=Do (1+ ε %), in formula: Do is end socket theoretical diameter, ε is the average shrinkage amount of end socket diameter, gets 0.5 ~ 0.7%.Upper mold materials: cast steel;
Counterdie: main consideration counterdie draw ring outlet diameter D
2with counterdie draw ring fillet R, they ensure the critical size carried out smoothly that is shaped.Counterdie draw ring outlet diameter D
2=D
1+ 2Z, Z are the gap of upper and lower intermode.The factor such as amount of swelling on the nominal thickness of blank, the plus tolerance of sotck thinkness and shaping rear head top is depended in the determination of Z value.Size the counting for much to forming quality of Z and R value.Z, R are too small, radial drawing power when making shaping increased, stretch forming difficulty, and the Reducing thickness of workpiece is increased, time serious, cause workpiece to tear.Excessive Z, R, easily cause wrinkling.During design, Z=1.06t, R=(2.5 ~ 3.5) t, t are blank thickness of slab.Lower mold materials: internal mold cast iron, outer moulded steel;
(2), composite plate is spliced: spliced by required nickel compound board, splicing sheet material is as the blank of shaping nickel compound board end socket, splicing sheet material must carry out spot welding joint strip in welded joints, and joint strip should to be left a blank the narrow 3 ~ 4mm of width than weld seam, weld seam cladding is soldered completely;
(3), penetrant inspection detects: butt welded seam is two-sided carries out penetrant inspection detection;
(4), ultrasound detection: nickel compound board material through 100% ultrasound detection;
(5), Mold polishing cleaning: before compacting, polishing cleaning is carried out to mould;
(6), blank process in early stage: blank edge polishing cleaning, the oxidation produced when removing periphery gas flame cuttiug and all burrs; Surperficial edge carried out cutting oblique process before blank punching press, angle of splaying is 4 ~ 5 °, and the maximum thickness of pruning of edge is 10% of sotck thinkness; Need nickel compound board blank surface to clean out before heating, and apply borosilicate lubricant, the dual coating amount of borosilicate lubricant is: 150 ~ 200g/m
2, during coating, borosilicate lubricant temperature is 5 ~ 25 DEG C;
(7), heat: adopt gas furnace heating, in stove, pad puts corrosion resistant plate, pass through cold preformed blank for the first time and enter stove when in-furnace temperature 350 ~ 400 DEG C, then programming rate in stove is controlled at 180 ~ 200 DEG C/h, be warming up to 1000 ~ 1200 DEG C, blank is through-thickness 1.2 ~ 2.5min/mm in the stove inside holding time, and final pressure temperature controls at 1000 ~ 1100 DEG C;
(8), stamping: forming technology adopts three shapings, cold preform for the first time, blank carries out punching press under normal temperature state, 60 ~ 62% of pressing seal head shaping total height, then heating in stove will be sent into through first time cold preformed blank, be heated to blank temperature and reach 1000 ~ 1200 DEG C, carry out the hot preform of second time, 73 ~ 75% of pressing seal head shaping total height, and then blank sent in stove heat, be heated to blank temperature and reach 1050 ~ 1150 DEG C, carry out the shaping eventually of third time heat, guarantee that final pressure temperature remains on 1000 ~ 1100 DEG C, 100% of pressing seal head shaping total height,
(9), mould pressing: for the formation of angle, end socket garden and straight flange, end socket temperature maintenance is made to carry out spinning operation under the state of 200 ~ 600 DEG C, with 3 ~ 6 volley of rifle fire flame projectors, heating and thermal insulation is at equal intervals carried out to end socket, guarantee nickel compound board temperature all the time in 200 ~ 600 DEG C of safe rangies;
(10), bevel cut: select plasma cut form to carry out retaining wall on slope, before bevel cut, end socket is calibrated by shape face, determine cutting-height again, bevel cut front head inwall smears limewash, cutting splashing is prevented to be bonded on nickel compound board, after bevel cut, polishing light is carried out to groove, remove all cutting residues;
(11), pickling processes: formed head is carried out pickling, remove the dirt such as welding slag, slag, greasy dirt, oxide skin on surface, hydrochloric acid solution is evenly filled end socket outer surface, concentration of hydrochloric acid: 7 ~ 19%, pickling time: 15 ~ 30 minutes, re-use a large amount of clear water to rinse, form one deck passivating film on surface;
(12), polish: the scuffing on end socket and other defect, carry out grinding process;
(13), penetrant inspection detection and ultrasound detection: nickel compound board end socket through 100% penetrant inspection detection and ultrasound detection, be up to the standards product putting in storage;
(14), end socket is stacking: corrugated paper must be used between nickel compound board end socket to carry out dottle pin between each end socket, prevents jolting and cause the secondary of end socket to scratch in transit.
The invention has the beneficial effects as follows: the manufacture method of a kind of nickel compound board end socket provided by the invention, punching course is stablized, and is out of shape even, smooth and easy, the hot-working system determined is feasible, and technological parameter is reasonable, and workpiece size controls better, metal streamline distribution is reasonable, stable performance; Workpiece diameter is consistent with die head diameter, and when punching press, the stickiness of workpiece and mould is good, and the contraction after workpiece punching press is little; Maximum thinning place after component shaping appears at bottom workpiece, and the direction along bottom to upper end diminishes gradually, be about 100mm place at distance workpiece upper end-face edge to start to thicken, its maximum reduction is 9.87%, meets the requirement of reduction≤15% in JB/T47562006 " Ni-based ultrafine powder pressing pressure container ".
Accompanying drawing explanation
Fig. 1 is nickel compound board end socket product schematic diagram.
Fig. 2 is nickel compound board seal head forming schematic diagram.
In Fig. 2: 1. patrix, 2. nickel compound board blank, 3. counterdie.Die assembly, on special hydraulic press, is made up of upper die and lower die, and the nickel compound board circular blank heated during shaping puts into counterdie top cavity, and the descending extrusion billet of patrix is configured as Seal head blank.
Detailed description of the invention:
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
The present invention is applied to the N02201/Q345R nickel compound board end socket of ￠ 1300/30mm specification, and detailed description of the invention is as follows:
(1), Design of Dies: end socket diameter 1300mm, wall thickness 30mm, according to the formulae discovery patrix pressure head diameter D of technical scheme
1get 1307mm, counterdie draw ring outlet diameter D
2get 1371mm, the gap Z of upper and lower intermode gets 31.8mm, and counterdie draw ring fillet R gets 75mm;
(2), splicing composite plate: spliced by required nickel compound board, splicing sheet material is as the blank of shaping nickel compound board end socket, and splicing sheet material must carry out spot welding joint strip in welded joints, and joint strip should to be left a blank the narrow 3mm of width than weld seam, weld seam cladding is soldered completely;
(3), penetrant inspection detects: butt welded seam is two-sided carries out penetrant inspection detection;
(4), ultrasound detection: nickel compound board material through 100% ultrasound detection;
(5), Mold polishing cleaning: before compacting, polishing cleaning is carried out to mould;
(6), blank process in early stage: blank edge polishing cleaning, the oxidation produced when removing periphery gas flame cuttiug and all burrs; Surperficial edge carried out cutting oblique process before blank punching press, angle of splaying is 4 °, and the maximum thickness of pruning of edge is 3mm; Need nickel compound board blank surface to clean out before heating, and apply lubricant, the lubricant of coating is the borosilicate lubricant that Beijing Tianlichuang Glass Technology Development Co., Ltd. produces, and the dual coating amount of borosilicate lubricant is: 150g/m
2, during coating, borosilicate lubricant temperature is 5 DEG C;
(7), heating: adopt gas furnace heating, gas heating furnace model 6000 × 5600 × 2500mm, Nanjing Zhengguang Furnace Industry Co., Ltd. of manufacturer.In stove, pad puts corrosion resistant plate, pass through cold preformed blank for the first time and enter stove when in-furnace temperature 350 DEG C, then programming rate in stove is controlled, at 180 DEG C/h, to be warming up to 1000 DEG C, blank is 36min in the stove inside holding time, and final pressure temperature controls at 1000 DEG C;
(8), stamping: pressing equipment is four-column hydraulic press, model: 1300T, Jiangsu Zhongwei Heavy Industry Machinery Co., Ltd. of manufacturer.Forming technology adopts three shapings, cold preform for the first time, blank carries out punching press under normal temperature state, 60% of pressing seal head shaping total height, then heating in stove will be sent into through first time cold preformed blank, be heated to blank temperature and reach 1000 DEG C, carry out the hot preform of second time, 73% of pressing seal head shaping total height, and then blank sent in stove heat, be heated to blank temperature and reach 1050 DEG C, carry out third time heat and be shaped eventually, guarantee that final pressure temperature remains on 1000 DEG C, 100% of pressing seal head shaping total height;
(9), mould pressing: for the formation of angle, end socket garden and straight flange, end socket temperature maintenance is made to carry out spinning operation under the state of 200 DEG C, with 3 volley of rifle fire flame projectors, heating and thermal insulation is at equal intervals carried out to end socket, guarantee nickel compound board temperature all the time in 200 DEG C of safe rangies;
(10), bevel cut: select plasma cut form to carry out retaining wall on slope, before bevel cut, end socket is calibrated by shape face, determine cutting-height again, bevel cut front head inwall smears limewash, cutting splashing is prevented to be bonded on nickel compound board, after bevel cut, polishing light is carried out to groove, remove all cutting residues;
(11), pickling processes: formed head is carried out pickling, remove the dirt such as welding slag, slag, greasy dirt, oxide skin on surface, hydrochloric acid solution is evenly filled end socket outer surface, concentration of hydrochloric acid: 7%, pickling time: 15 minutes, re-use a large amount of clear water to rinse, form one deck passivating film on surface;
(12), polish: the scuffing on end socket and other defect, carry out grinding process;
(13), penetrant inspection detection and ultrasound detection: nickel compound board end socket through 100% penetrant inspection detection and ultrasound detection, be up to the standards product putting in storage;
(14), end socket is stacking: corrugated paper must be used between nickel compound board end socket to carry out dottle pin between each end socket, prevents jolting and cause the secondary of end socket to scratch in transit.
The appearance and size of the N02201/Q345R nickel compound board end socket of the ￠ 1300/30mm specification be shaped and wall thickness are measured, the results are shown in following table:
Dimension control and wall thickness measuring result table
The inventive method, punching course is stablized, and be out of shape even, smooth and easy, the hot-working system determined is feasible, and technological parameter is reasonable, and workpiece size controls better, and metal streamline distributes rationally, stable performance; Workpiece diameter is consistent with die head diameter, and when punching press, the stickiness of workpiece and mould is good, and the contraction after workpiece punching press is little; Maximum thinning place after component shaping appears at bottom workpiece, and the direction along bottom to upper end diminishes gradually, be about 100mm place at distance workpiece upper end-face edge to start to thicken, its maximum reduction is 9.87%, meets the requirement of reduction≤15% in JB/T4756-2006 " Ni-based ultrafine powder pressing pressure container ".
Embodiment 2
The present invention is applied to the N02201/Q345R nickel compound board end socket of ￠ 3400/30mm specification, and detailed description of the invention is as follows:
(1), Design of Dies: end socket diameter 3400mm, wall thickness 30mm, according to the formulae discovery patrix pressure head diameter D of technical scheme
1get 3424mm, counterdie draw ring outlet diameter D
2get 3488mm, the gap Z of upper and lower intermode gets 31.8mm, and counterdie draw ring fillet R gets 105mm;
(2), splicing composite plate: spliced by required nickel compound board, splicing sheet material is as the blank of shaping nickel compound board end socket, and splicing sheet material must carry out spot welding joint strip in welded joints, and joint strip should to be left a blank the narrow 4mm of width than weld seam, weld seam cladding is soldered completely;
(3), penetrant inspection detects: butt welded seam is two-sided carries out penetrant inspection detection;
(4), ultrasound detection: nickel compound board material through 100% ultrasound detection;
(5), Mold polishing cleaning: before compacting, polishing cleaning is carried out to mould;
(6), blank process in early stage: blank edge polishing cleaning, the oxidation produced when removing periphery gas flame cuttiug and all burrs; Surperficial edge carried out cutting oblique process before blank punching press, angle of splaying is 5 °, and the maximum thickness of pruning of edge is 3mm; Need nickel compound board blank surface to clean out before heating, and apply lubricant, the lubricant of coating is the borosilicate lubricant that Beijing Tianlichuang Glass Technology Development Co., Ltd. produces, and the dual coating amount of borosilicate lubricant is: 200g/m
2, during coating, borosilicate lubricant temperature is 25 DEG C;
(7), heating: adopt gas furnace heating, gas heating furnace model 6000 × 5600 × 2500mm, Nanjing Zhengguang Furnace Industry Co., Ltd. of manufacturer.In stove, pad puts corrosion resistant plate, pass through cold preformed blank for the first time and enter stove when in-furnace temperature 400 DEG C, then programming rate in stove is controlled, at 200 DEG C/h, to be warming up to 1200 DEG C, blank is 75min/mm in the stove inside holding time, and final pressure temperature controls at 1100 DEG C;
(8), stamping: pressing equipment is four-column hydraulic press, model: 4000T, Jiangsu Zhongwei Heavy Industry Machinery Co., Ltd. of manufacturer.Forming technology adopts three shapings, cold preform for the first time, blank carries out punching press under normal temperature state, 62% of pressing seal head shaping total height, then heating in stove will be sent into through first time cold preformed blank, be heated to blank temperature and reach 1200 DEG C, carry out the hot preform of second time, 75% of pressing seal head shaping total height, and then blank sent in stove heat, be heated to blank temperature and reach 1150 DEG C, carry out third time heat and be shaped eventually, guarantee that final pressure temperature remains on 1100 DEG C, 100% of pressing seal head shaping total height;
(9), mould pressing: for the formation of angle, end socket garden and straight flange, end socket temperature maintenance is made to carry out spinning operation under the state of 600 DEG C, with 6 volley of rifle fire flame projectors, heating and thermal insulation is at equal intervals carried out to end socket, guarantee nickel compound board temperature all the time in 600 DEG C of safe rangies;
(10), bevel cut: select plasma cut form to carry out retaining wall on slope, before bevel cut, end socket is calibrated by shape face, determine cutting-height again, bevel cut front head inwall smears limewash, cutting splashing is prevented to be bonded on nickel compound board, after bevel cut, polishing light is carried out to groove, remove all cutting residues;
(11), pickling processes: formed head is carried out pickling, remove the dirt such as welding slag, slag, greasy dirt, oxide skin on surface, hydrochloric acid solution is evenly filled end socket outer surface, concentration of hydrochloric acid: 19%, pickling time: 30 minutes, re-use a large amount of clear water to rinse, form one deck passivating film on surface;
(12), polish: the scuffing on end socket and other defect, carry out grinding process;
(13), penetrant inspection detection and ultrasound detection: nickel compound board end socket through 100% penetrant inspection detection and ultrasound detection, be up to the standards product putting in storage;
(14), end socket is stacking: corrugated paper must be used between nickel compound board end socket to carry out dottle pin between each end socket, prevents jolting and cause the secondary of end socket to scratch in transit.
Embodiment 3
The present invention is applied to the N02201/Q345R nickel compound board end socket of ￠ 2200/30mm specification, and detailed description of the invention is as follows:
(1), Design of Dies: end socket diameter 2200mm, wall thickness 30mm, according to the formulae discovery patrix pressure head diameter D of technical scheme
1get 2215mm, counterdie draw ring outlet diameter D
2get 2279mm, the gap Z of upper and lower intermode gets 31.8mm, and counterdie draw ring fillet R gets 90mm;
(2), composite plate is spliced: spliced by required nickel compound board, splicing sheet material is as the blank of shaping nickel compound board end socket, splicing sheet material must carry out spot welding joint strip in welded joints, and joint strip should to be left a blank the narrow 3.5mm of width than weld seam, weld seam cladding is soldered completely;
(3), penetrant inspection detects: butt welded seam is two-sided carries out penetrant inspection detection;
(4), ultrasound detection: nickel compound board material through 100% ultrasound detection;
(5), Mold polishing cleaning: before compacting, polishing cleaning is carried out to mould;
(6), blank process in early stage: blank edge polishing cleaning, the oxidation produced when removing periphery gas flame cuttiug and all burrs; Surperficial edge carried out cutting oblique process before blank punching press, angle of splaying is 4.5 °, and the maximum thickness of pruning of edge is 3mm; Need nickel compound board blank surface to clean out before heating, and apply lubricant, the lubricant of coating is the borosilicate lubricant that Beijing Tianlichuang Glass Technology Development Co., Ltd. produces, and the dual coating amount of borosilicate lubricant is: 180g/m
2, during coating, borosilicate lubricant temperature is 20 DEG C;
(7), heating: adopt gas furnace heating, gas heating furnace model 6000 × 5600 × 2500mm, Nanjing Zhengguang Furnace Industry Co., Ltd. of manufacturer.In stove, pad puts corrosion resistant plate, pass through cold preformed blank for the first time and enter stove when in-furnace temperature 380 DEG C, then programming rate in stove is controlled, at 190 DEG C/h, to be warming up to 1100 DEG C, blank is 60min/mm in the stove inside holding time, and final pressure temperature controls at 1050 DEG C;
(8), stamping: pressing equipment is four-column hydraulic press, model: 4000T, Jiangsu Zhongwei Heavy Industry Machinery Co., Ltd. of manufacturer.Forming technology adopts three shapings, cold preform for the first time, blank carries out punching press under normal temperature state, 61% of pressing seal head shaping total height, then heating in stove will be sent into through first time cold preformed blank, be heated to blank temperature and reach 1100 DEG C, carry out the hot preform of second time, 74% of pressing seal head shaping total height, and then blank sent in stove heat, be heated to blank temperature and reach 1100 DEG C, carry out third time heat and be shaped eventually, guarantee that final pressure temperature remains on 1050 DEG C, 10 () % of pressing seal head shaping total height;
(9), mould pressing: for the formation of angle, end socket garden and straight flange, end socket temperature maintenance is made to carry out spinning operation under the state of 400 DEG C, with 4 volley of rifle fire flame projectors, heating and thermal insulation is at equal intervals carried out to end socket, guarantee nickel compound board temperature all the time in 400 DEG C of safe rangies;
(10), bevel cut: select plasma cut form to carry out retaining wall on slope, before bevel cut, end socket is calibrated by shape face, determine cutting-height again, bevel cut front head inwall smears limewash, cutting splashing is prevented to be bonded on nickel compound board, after bevel cut, polishing light is carried out to groove, remove all cutting residues;
(11), pickling processes: formed head is carried out pickling, remove the dirt such as welding slag, slag, greasy dirt, oxide skin on surface, hydrochloric acid solution is evenly filled end socket outer surface, concentration of hydrochloric acid: 12%, pickling time: 20 minutes, re-use a large amount of clear water to rinse, form one deck passivating film on surface;
(12), polish: the scuffing on end socket and other defect, carry out grinding process;
(13), penetrant inspection detection and ultrasound detection: nickel compound board end socket through 100% penetrant inspection detection and ultrasound detection, be up to the standards product putting in storage;
(14), end socket is stacking: corrugated paper must be used between nickel compound board end socket to carry out dottle pin between each end socket, prevents jolting and cause the secondary of end socket to scratch in transit.
Claims (1)
1. a manufacture method for nickel compound board end socket, comprising:
(1), Design of Dies: patrix pressure head diameter D
1, counterdie draw ring outlet diameter D
2, the gap Z of upper and lower intermode, counterdie draw ring fillet R determines according to following formula:
Patrix pressure head diameter D
1=Do (1+ ε %), numerical value rounds, unit: mm.Upper mold materials: cast steel;
Counterdie draw ring outlet diameter D
2=D
1+ 2Z, numerical value rounds, unit: mm.Lower mold materials: internal mold cast iron, outer moulded steel;
Z=1.06t, unit: mm;
R=(2.5 ~ 3.5) t, unit: mm;
In formula: Do is end socket theoretical diameter, unit: mm;
ε is the average shrinkage amount of end socket diameter, gets 0.5 ~ 0.7%;
T is blank thickness of slab, and actual numerical value rounds, unit: mm;
(2), composite plate is spliced: spliced by required nickel compound board, splicing sheet material is as the blank of shaping nickel compound board end socket, splicing sheet material must carry out spot welding joint strip in welded joints, and joint strip should to be left a blank the narrow 3 ~ 4mm of width than weld seam, weld seam cladding is soldered completely;
(3), penetrant inspection detects: butt welded seam is two-sided carries out penetrant inspection detection;
(4), ultrasound detection: nickel compound board material through 100% ultrasound detection;
(5), Mold polishing cleaning: before compacting, polishing cleaning is carried out to mould;
(6), blank process in early stage: blank edge polishing cleaning, the oxidation produced when removing periphery gas flame cuttiug and all burrs; Surperficial edge carried out cutting oblique process before blank punching press, angle of splaying is 4 ~ 5 °, and the maximum thickness of pruning of edge is 10% of sotck thinkness; Need nickel compound board blank surface to clean out before heating, and apply borosilicate lubricant, the dual coating amount of borosilicate lubricant is: 150 ~ 200g/m
2, during coating, borosilicate lubricant temperature is 5 ~ 25 DEG C;
(7), heat: adopt gas furnace heating, in stove, pad puts corrosion resistant plate, pass through cold preformed blank for the first time and enter stove when in-furnace temperature 350 ~ 400 DEG C, then programming rate in stove is controlled at 180 ~ 200 DEG C/h, be warming up to 1000 ~ 1200 DEG C, blank is through-thickness 1.2 ~ 2.5min/mm in the stove inside holding time, and final pressure temperature controls at 1000 ~ 1100 DEG C;
(8), stamping: forming technology adopts three shapings, cold preform for the first time, blank carries out punching press under normal temperature state, 60 ~ 62% of pressing seal head shaping total height, then heating in stove will be sent into through first time cold preformed blank, be heated to blank temperature and reach 1000 ~ 1200 DEG C, carry out the hot preform of second time, 73 ~ 75% of pressing seal head shaping total height, and then blank sent in stove heat, be heated to blank temperature and reach 1050 ~ 1150 DEG C, carry out the shaping eventually of third time heat, guarantee that final pressure temperature remains on 1000 ~ 1100 DEG C, 100% of pressing seal head shaping total height,
(9), mould pressing: for the formation of angle, end socket garden and straight flange, end socket temperature maintenance is made to carry out spinning operation under the state of 200 ~ 600 DEG C, with 3 ~ 6 volley of rifle fire flame projectors, heating and thermal insulation is at equal intervals carried out to end socket, guarantee nickel compound board temperature all the time in 200 ~ 600 DEG C of safe rangies;
(10), bevel cut: select plasma cut form to carry out retaining wall on slope, before bevel cut, end socket is calibrated by shape face, determine cutting-height again, bevel cut front head inwall smears limewash, cutting splashing is prevented to be bonded on nickel compound board, after bevel cut, polishing light is carried out to groove, remove all cutting residues;
(11), pickling processes: formed head is carried out pickling, remove the dirt such as welding slag, slag, greasy dirt, oxide skin on surface, hydrochloric acid solution is evenly filled end socket outer surface, concentration of hydrochloric acid: 7 ~ 19%, pickling time: 15 ~ 30 minutes, re-use a large amount of clear water to rinse, form one deck passivating film on surface;
(12), polish: the scuffing on end socket and other defect, carry out grinding process;
(13), penetrant inspection detection and ultrasound detection: nickel compound board end socket through 100% penetrant inspection detection and ultrasound detection, be up to the standards product putting in storage;
(14), end socket is stacking: corrugated paper must be used between nickel compound board end socket to carry out dottle pin between each end socket, prevents jolting and cause the secondary of end socket to scratch in transit.
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| CN106584129A (en) * | 2016-12-26 | 2017-04-26 | 宜兴北海封头有限公司 | Silver steel composite plate sealing head manufacturing system and process |
| CN107309317A (en) * | 2016-12-19 | 2017-11-03 | 长春理工大学 | Spinning processing method of the nickel-base alloy with bottomless drum shape part |
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| CN106001233A (en) * | 2016-06-24 | 2016-10-12 | 茂名重力石化机械制造有限公司 | Head sealing method for hot-press formed reactor, blank subjected to method and reactor with head manufactured through method |
| CN106541013A (en) * | 2016-11-25 | 2017-03-29 | 扬州尼尔工程塑料有限公司 | A kind of processing method of seal end thin wall component |
| CN107309317A (en) * | 2016-12-19 | 2017-11-03 | 长春理工大学 | Spinning processing method of the nickel-base alloy with bottomless drum shape part |
| CN106584129A (en) * | 2016-12-26 | 2017-04-26 | 宜兴北海封头有限公司 | Silver steel composite plate sealing head manufacturing system and process |
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| CN110653573A (en) * | 2019-10-16 | 2020-01-07 | 安徽心连心重型封头有限公司 | Method for manufacturing three-composite end socket |
| CN110653573B (en) * | 2019-10-16 | 2021-07-20 | 安徽心连心重型封头有限公司 | Method for manufacturing three-composite end socket |
| CN111872629A (en) * | 2020-06-11 | 2020-11-03 | 南通鑫拓封头制造有限公司 | End socket preparation process for nondifferential repair of micro gap |
| CN111872629B (en) * | 2020-06-11 | 2022-04-08 | 南通鑫拓封头制造有限公司 | End socket preparation process for nondifferential repair of micro gap |
| CN112621250A (en) * | 2021-01-19 | 2021-04-09 | 西京学院 | Titanium alloy multi-curved surface forming device and forming method |
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