CN104439886A - Sticking and reinforcing device and sticking and repairing method for cracks on cast iron outer shell of diffusion pump of vacuum furnace - Google Patents
Sticking and reinforcing device and sticking and repairing method for cracks on cast iron outer shell of diffusion pump of vacuum furnace Download PDFInfo
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- CN104439886A CN104439886A CN201410562836.0A CN201410562836A CN104439886A CN 104439886 A CN104439886 A CN 104439886A CN 201410562836 A CN201410562836 A CN 201410562836A CN 104439886 A CN104439886 A CN 104439886A
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- diffusion pump
- strengthening
- vacuum drying
- crackle
- drying oven
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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
- B23P6/00—Restoring or reconditioning objects
- B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
Abstract
The invention relate to a sticking and reinforcing device and a sticking and repairing method for cracks on a cast iron outer shell of a diffusion pump of a vacuum furnace. The sticking and reinforcing device comprises an annular hoop, a connection fixing piece and a locating groove connection fixing piece. The connection fixing piece and the locating groove connection fixing piece are arranged at the two ends of the annular hoop respectively and fixedly connected together through bolts. In repair, the crack position is ground and cleaned completely, the cracks are bonded through epoxy glue, glass fiber cloths and thin aluminum sheets, and then the annular hoop of the sticking and reinforcing device is used for reinforcing the adhesion position in a surrounding mode to be wrapped outside the cracks. After the sticking and reinforcing device is installed, epoxy resin is prevented from being aged and being brittle, the adhesive effect is good, by means of the sticking and reinforcing device, the adhesive effect of the epoxy glue can be maintained for a long time, the adhesive effect of the epoxy glue is brought into play, the sticking and reinforcing device is accurately located when used, connection is firm, and a reinforcement effect is achieved on repair of the cracks on the outer shell.
Description
Technical field
The present invention relates to a kind of vacuum drying oven diffusion pump cast iron housing crackle strengthening with external bonding device and crackle Bonded Repair method, belong to technical field of metallurgical equipment.
Background technology
At present, when vacuum drying oven is smelted, need vacuumize.Diffusion pump is the indispensable equipment of gas clean-up, needs recirculated water to cool it during work.When north of china in winter, because temperature is low, factory building heat insulation effect is poor, and the cooling circulating water in diffusion pump freezes icing, and cast iron housing bursting by freezing, cracks, and occurs leaking, and can not work.Cast iron housing solderability is poor, and if do not repaired, diffusion pump then cannot use.Chinese patent document CN1030040A provides a kind of amending surface defects of castings method, and a. is regular hole to the cleaning of hole to be repaired drilling machining method; B. with becoming with the materials processing of mother metal homogeneity and this hole similar shape stopper; C. treat perforations adding surface and filler plug sub-surface carry out thermal spray protection process; D. waiting to mend the liquid phase transition zone that skim low melting point is inserted on surface; E. put into and above-mentionedly fill stopper with parent homogeneity; F. in atmospheric environment, pressurization (0.1 ~ 0.3kg/mm
2), heating (600 DEG C ~ 950 DEG C), insulation (1 ~ 30min), again slow cooling to normal temperature.The method adopts heating, insulation, again slow cooling to the method for normal temperature.The method inapplicable vacuum drying oven diffusion pump cast iron housing Crack Repairing, reason is that vacuum drying oven diffusion pump cannot overall heat, if heating need dismantle parts, wastes time and energy.
Chinese patent document CN2885487Y discloses a kind of repairing inserts repairing metal casting crackle, and longitudinal lines that the cylinder be connected by intersection is formed and cross-wise lines form.It is characterized in that: the main body that the lines described in a. include the longitudinal lines of at least one longitudinal lines and at least one piece cross-wise lines being connected vertical with longitudinal lines: b. and cross-wise lines by being positioned on respective central axis, intersect be connected the diameter that arranges comparatively large cylinder and diameter comparatively small cylinder form: c. is provided with and is connected the concavo-convex catch surface formed compared with the outer gibbosity arc surface on small cylinder compared with the outer gibbosity arc surface on large cylinder and diameter by diameter on the perimeter face of longitudinal lines with cross-wise lines.This invention is in cracks punching, mends the method for inserts.The method is inapplicable vacuum drying oven diffusion pump cast iron housing Crack Repairing also, and reason is that the cast iron housing wall of vacuum drying oven diffusion pump is too thin, and it is not firm that punching is inlayed.
Chinese patent document CN201020610Y relates to a kind of arc type inlay piece for repairing, be made up of the block main part of arc strip and laminar auxiliary, main part is connected by the other cylinder intersection of mediate cylindrical and side and the concavo-convex catch surface formed in peripheral surface is thus formed, each cylindrical own axes parallels with surrounding peripheral surface, auxiliary conforms to main part shape, is provided with the center positioning hole corresponding with cylindrical shaft core position each on main part above.Because the arcwall face around the shape of inserts and crackle matches, can produce crackle two side body after arranging and hold tractive force uniformly, make the crackle on different metals foundry goods arcwall face can be maintained at original state under the powerful draw of arc type inlay piece for repairing of the present invention, no longer continue expansion and extension, with flat line strip butterfly inserts of the prior art equally for repairing compared with the crackle on curved surfaces, having that functional reliability is stronger, repairing effect is better, profile is more attractive in appearance etc. shows advantage.
With regard to prior art, for the method for vacuum drying oven diffusion pump cast iron housing Crack Repairing, all can not realize fast, effectively repairing.Need a kind of vacuum drying oven diffusion pump cast iron housing Crack Repairing special purpose device of exploitation and method badly.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of vacuum drying oven diffusion pump cast iron housing crackle strengthening with external bonding device.
The present invention also provides a kind of crackle Bonded Repair method utilizing above-mentioned strengthening with external bonding device to carry out vacuum drying oven diffusion pump cast iron housing crackle.
Term illustrates:
Epoxide resin AB glue is the Bi-component high-temperature resistant adhesive of base by epoxy resin.Its serviceability temperature operating temperature is-50 ~+180 DEG C, can reach+250 DEG C in short-term.Commercial products.
Technical scheme of the present invention is as follows:
A kind of vacuum drying oven diffusion pump cast iron housing crackle strengthening with external bonding device, this device comprises circumferential band, connection fixture and locating slot connection fixture, and described connection fixture and locating slot connection fixture are separately positioned on the two ends of circumferential band;
Wherein, described connection fixture comprises base plate, is arranged on the both sides gusset of base plate dual-side, is arranged on base plate one end and the middle gusset that be connected vertical with both sides gusset, and the curved setting of described base plate, described middle gusset arranges through hole;
Described locating slot connection fixture comprises base plate, is arranged on the both sides gusset of base plate dual-side, is arranged on base plate one end and the middle gusset that be connected vertical with both sides gusset, the curved setting of described base plate, described middle gusset arranges through hole, described both sides gusset and middle gusset form a detent, when seated, described connection fixture embeds and is arranged in detent, makes the middle gusset of connection fixture and the middle gusset of locating slot connection fixture by being fixed together after bolt-through through hole.
Preferably, described two middle gussets are provided with two through holes respectively.The benefit of this design is, two through holes are bolted, and can play more firmly connection function, and when connection fixture embeds and is arranged on detent, in the middle of two, relatively together, its through hole is corresponding to be bolted gusset.
Preferred further, the right flank of the middle gusset of described connection fixture is fixedly installed two nuts be connected with through hole.The advantage of this design is, in advance nut is fixedly installed on the side of two through holes on the middle gusset of connection fixture, is conducive to the agility in installation process, only can need realize easily installing this strengthening with external bonding device by rotating to tight a bolt.
Preferably, one end of described circumferential band is set to tongue bars shape warpage end, and the other end of described circumferential band is set to right angle arc end.The benefit of this design is, when seated, tongue bars shape warpage end is close on the middle gusset of locating slot connection fixture, when being undertaken fastening by not stopping to tight a bolt, the two ends that the circumferential band that distortion in various degree enables can occur tongue bars shape warpage end realize fitting tightly, and ensure the sealing of circumferential band port; Meanwhile, one end of circumferential band is set to tongue bars shape warpage end, when mounted, when can ensure bolted, port has certain installation surplus.
Preferred further, the middle gusset of described connection fixture is arranged on the tongue bars shape warpage end 10-15mm place of distance circumferential band, and the middle gusset of described locating slot connection fixture is arranged on the arc end 5-10mm place, right angle of distance circumferential band.
Utilize strengthening with external bonding device to carry out a crackle Bonded Repair method for vacuum drying oven diffusion pump cast iron housing crackle, comprise the steps,
(1) draining: the rubber hose of vacuum drying oven diffusion pump water inlet and water outlet is pulled down, drains the water in vacuum drying oven diffusion pump;
(2) polishing cracks: vacuum drying oven diffusion pump cast iron housing cracks is polished, polishing area is greater than whole crackle area occupied, and by cracks polishing in " V " type mouth-shaped, cleans buffed surface simultaneously;
(3) patching material is prepared: cutting flake aluminum and glass fabric, the area of flake aluminum is slightly less than the polishing area in step (2), the area of glass fabric is less than the area of flake aluminum and at least can covers whole crackle area occupied, and to be pasted of flake aluminum of polishing;
(4) on the shell cracks buffed surface after step (2) process, blade coating one deck epoxide resin AB glue is as adhesive, the glass fabric that step (3) cuts is pasted on the buffed surface of cracks, to strike off after compacting blade coating one deck epoxide resin AB glue again, to paste on glass fabric after to be pasted blade coating one deck epoxide resin AB glue of flake aluminum, strike off compacting, naturally place after 4-8 hour, glue-line primary solidification;
(5) profiling mould: the flake aluminum surface that polishing primary solidification is good, strengthening with external bonding device is arranged on the ring surface of diffusion pump cracks, and make strengthening with external bonding device and vacuum drying oven diffusion pump contact surface reach the laminating of more than 80%, then, outline along strengthening with external bonding device circumferential band is rule on vacuum drying oven diffusion pump shell, form mark ring surface, pull down strengthening with external bonding device, the inner surface of polishing strengthening with external bonding device circumferential band;
(6) stickup is reinforced:
A. polishing mark ring surface, polishing area is slightly larger than the area of mark ring surface;
B. cutting glass fabric, makes the width of glass fabric after cutting equal with the width of strengthening with external bonding device circumferential band;
C. the inner surface of cleaning mark ring surface and strengthening with external bonding device, blade coating epoxide resin AB glue on mark ring surface, the glass fabric cut is pasted one deck on mark ring surface, to strike off after compacting blade coating one deck epoxide resin AB glue again, method is wound around parcel stickup layer 2-4 glass fabric like this, outermost glass fabric even blade coating one deck epoxide resin AB glue; Be fixed after the inner surface of strengthening with external bonding device circumferential band applies one deck epoxide resin AB glue and be installed on the mark ring surface region of sticking glass fabric, strengthening with external bonding device is made to clamp diffusion pump shell gradually by the bolt tightened in the middle of strengthening with external bonding device on gusset, the epoxide resin AB glue extruded is struck off joint filling simultaneously, be naturally placed to and solidify completely.
(7) suppress and leak hunting: completely after solidification, install the water inlet of vacuum drying oven diffusion pump and the rubber hose of water outlet, open inlet valve, suppress 0.25-0.4MPa, observe without after drainage, polishing reinforcing sticker, sprays paint.
Preferably, also a fabrication hole is respectively bored to vacuum drying oven diffusion pump cast iron housing crackle two ends terminal in described step (2).The benefit of this way is, this fabrication hole crackle capable of blocking prolongs stress, effectively prevents crackle from continuing cracking.
Preferably, the adhesive epoxy Resin A B glue in step (4), can select commercial products, its epoxy resin component A is modified acroleic acid epoxy resin, epoxy resin B component is modified amine curing agent, even, for subsequent use according to the proportioning allotment of 1:1 mass ratio.
Preferably, the cleaning process in described step (2) and step (7) uses acetone soln to clean.
Preferably, the bruting process in described step (2), (6), (7) uses angle grinding machine to polish.
Preferably, in described step (6) b, after cutting, the length of glass fabric at least can around mark ring surface 2-4 week.
Preferably, naturally place more than 24 hours in described step (6), preferably naturally place 24-36 hour; Crack Repairing bonding part is solidified completely.
Beneficial effect of the present invention is:
1. strengthening with external bonding device of the present invention can effectively realize, to the patch work of vacuum drying oven diffusion pump cast iron housing crackle, solving the defect in conventional repair method, and accurate positioning when this device uses, firm and reliable connection.
2. strengthening with external bonding device of the present invention can effectively prevent epoxy resin aging, become fragile, and sticking effect is good, uses this device to keep lastingly and plays the sticking effect of epoxy resin.
3. strengthening with external bonding apparatus design of the present invention is skillfully constructed, and structure is simple, and easy for installation, manufacturing cost is low, and effect obviously, and Be very effective, has good economic worth and market prospects.
4. this method for repairing and mending is without the need to detaching equipment, and without the need to firing equipment vacuum drying oven diffusion pump, mending course is simple to operation, and after repairing, can keep the original behaviour in service of equipment, repair efficiency is good.
Accompanying drawing explanation
Fig. 1 is the front view of circumferential band in the present invention;
Fig. 2 is the top view of circumferential band in the present invention;
Fig. 3 is the left view of circumferential band in the present invention;
Fig. 4 is the expanded view of circumferential band in the present invention;
Fig. 5 is the front view of connection fixture in the present invention;
Fig. 6 is the top view of connection fixture in the present invention;
Fig. 7 is the front view of locating slot connection fixture in the present invention;
Fig. 8 is the top view of locating slot connection fixture in the present invention;
Fig. 9 is the front view of boring sharp screw in the present invention;
Figure 10 is the overall structure schematic diagram of strengthening with external bonding device of the present invention;
Figure 11 is the partial enlarged drawing of strengthening with external bonding device in Figure 10;
Figure 12 is vacuum drying oven diffusion pump crackle schematic diagram.
Wherein: 1, circumferential band, 101, tongue bars shape warpage end, 102, right angle arc end, 2, connection fixture, 201, both sides gusset, 202, middle gusset, 203, through hole, 204, nut, 205, base plate, 3, locating slot connection fixture, 301, both sides gusset, 302, middle gusset, 303, through hole, 304, base plate, 305, detent, 4, sharp bolt is bored, 5, flake aluminum, 6, buffed surface, 7, crackle, 8, fabrication hole, 9, mark ring surface.
Detailed description of the invention
Below by embodiment, also the present invention will be further described by reference to the accompanying drawings, but be not limited thereto.
Embodiment 1:
A kind of vacuum drying oven diffusion pump cast iron housing Crack Repairing strengthening with external bonding device, this device comprises iron sheet circumferential band 1, connection fixture 2 and locating slot connection fixture 3, and connection fixture 2 and locating slot connection fixture 3 are separately positioned on the two ends of circumferential band 1;
Wherein, connection fixture 2 comprises base plate 205, is arranged on the both sides gusset 201 of base plate 205 dual-side, is arranged on base plate 205 one end and the middle gusset 202 that be connected vertical with both sides gusset 201, the curved setting of base plate 205, its radian is consistent with the radian of circumferential band 1, middle gusset 202 is provided with two through holes 203;
Locating slot connection fixture 3 comprises base plate 304, be arranged on the both sides gusset 301 of base plate 304 dual-side, be arranged on base plate 304 one end and the middle gusset 302 that be connected vertical with both sides gusset 301, the curved setting of base plate 304, its radian is consistent with the radian of circumferential band 1, middle gusset 302 is provided with two through holes, both sides gusset 301 and middle gusset 302 form a detent 305, when seated, connection fixture 2 embeds and is arranged in detent 305, make together with the middle gusset 202 of connection fixture is bolted to connection with the middle gusset 302 of locating slot connection fixture.
In actual installation process, the base plate 205 of connection fixture 2 is welded on one end of circumferential band 1, and its middle gusset 202 is apart from 10mm position, circumferential band one end; The base plate 304 of locating slot connection fixture 3 is welded on the other end of circumferential band 1, and its middle gusset 302 is apart from circumferential band other end 5mm position.First, epoxide-resin glue is coated after being polished smooth by the inner ring of circumferential band 1, then, the ports-Extending of circumferential band 1 is come, circumferential band 1 is placed in vacuum drying oven diffusion pump cast iron housing cracks, crackle is wrapped up, but the port of circumferential band is not in cracks, and then, connection fixture 2 is firmly embedded in the detent 305 of locating slot connection fixture 3, make middle gusset 202 relative with two through holes on middle gusset 302, finally, through through hole, the port of circumferential band is tightly fixed together with bolt.
The device of the present embodiment can effectively externally be reinforced by shell Crack Repairing, because epoxide-resin glue is tightly fixed on cracks by circumferential band, can effectively prevent epoxy resin aging, become fragile, and sticking effect is good, and fastening circumferential band can keep lastingly and play the sticking effect of epoxide-resin glue.By the Embedded cooperation fixed form of connection fixture and locating slot connection fixture, can ensure accurate positioning when connecting, whole circumferential band is to the epoxide-resin glue uniform force application of cracks.
Embodiment 2:
A kind of vacuum drying oven diffusion pump cast iron housing Crack Repairing strengthening with external bonding device, structure as described in Example 1, its difference is, the right flank of the middle gusset 202 of connection fixture welds two nuts be connected with through hole, the aperture of nut is slightly less than through-hole aperture, be convenient to weld centering, the sharp bolt 4 of cone selected by bolt.The benefit of the technical scheme described in the present embodiment is: the side in advance nut being fixedly installed on two through holes on the middle gusset of connection fixture, be conducive to the agility in installation process, bore sharp bolt to be convenient to be inserted in through hole and to be conducive to the fastening of bolt, only need tighten the sharp bolt of cone and can realize this strengthening with external bonding device is easily installed by rotating.
Embodiment 3:
A kind of vacuum drying oven diffusion pump cast iron housing Crack Repairing strengthening with external bonding device, as described in Example 1, its difference is structure, and one end of circumferential band 1 is set to tongue bars shape warpage end 101, and the other end of circumferential band is set to right angle arc end 102.The middle gusset 202 of connection fixture is welded on the tongue bars shape warpage end 15mm place of distance circumferential band, and the middle gusset 302 of locating slot connection fixture is welded on the arc end 10mm place, right angle of distance circumferential band.
The device advantage of the present embodiment: when seated, tongue bars shape warpage end is close on the middle gusset of locating slot connection fixture, when being undertaken fastening by not stopping to tight a bolt, the two ends that the circumferential band that distortion in various degree enables can occur tongue bars shape warpage end realize fitting tightly, and ensure the sealing of circumferential band port; Meanwhile, one end of circumferential band is set to tongue bars shape warpage end, when mounted, when can ensure bolted, port has certain installation surplus.
Embodiment 4:
Utilize strengthening with external bonding device of the present invention to carry out the crackle Bonded Repair method of vacuum drying oven diffusion pump cast iron housing crackle, mending course comprises the steps,
(1) draining: the rubber hose of vacuum drying oven diffusion pump water inlet and water outlet is pulled down, drains the water in vacuum drying oven diffusion pump;
(2) polishing cracks: vacuum drying oven diffusion pump cast iron housing cracks angle grinding machine clamping emery disc is polished, removing surface and oil contaminant, the area of buffed surface 6 is greater than crackle 7 area occupied, namely buffed surface 6 will comprise whole piece crackle 7, crackle 7 two ends destination county respectively bores fabrication hole 8, and aperture is Φ 4mm; Then, with angle grinding machine clamping emery disc, crackle 7 is polished in " V " type mouth-shaped, dip in acetone solvent cleaning buffed surface 6 by swab stick; In this step, crackle 7 is polished in " V " type mouth-shaped, some epoxide-resin glues can be smeared for follow-up overbrushing, make whole repair efficiency better.With acetone solvent cleaning buffed surface 6, cleaning more thorough, and acetone is volatile, and cleaning efficiency is higher.
(3) patching material is prepared: cutting flake aluminum 5 and glass fabric, and rounding, wherein, flake aluminum 5 thickness is 0.2mm, glass fabric thickness is 0.15mm, the area of flake aluminum 5 is slightly less than the area of the buffed surface 6 in step (2), and the area of glass fabric is slightly less than the area of flake aluminum 5, and to be pasted of flake aluminum 5 of polishing;
Preparation adhesive: epoxide resin AB glue is according to component A: B component=1:1 mass ratio preparation, stirs with electric hand drill clamping agitator, for future use;
Epoxide resin AB glue used is precious and resin Science and Technology Ltd. purchased from Dongguan, and epoxy resin component A is modified acroleic acid epoxy resin, and epoxy resin B component is modified amine curing agent.
(4) first frictioning: the epoxide resin AB glue that on the buffed surface 6 after step (2) process, blade coating one deck is deployed, the glass fabric that step (3) cuts is pasted on buffed surface 6, to strike off after compacting blade coating one deck epoxide resin AB glue again, to paste on glass fabric after to be pasted blade coating one deck epoxide resin AB glue of flake aluminum, strike off compacting, naturally place after 4 hours, glue-line primary solidification;
(5) profiling mould: with flake aluminum 5 surface of sand papering primary solidification, strengthening with external bonding device is arranged on the ring surface at diffusion pump crackle 7 place, and make strengthening with external bonding device and vacuum drying oven diffusion pump contact surface reach the laminating of more than 80%, then, rule on vacuum drying oven diffusion pump shell with the outline of scriber along strengthening with external bonding device circumferential band 1, to make marks, form mark ring surface 9, pull down strengthening with external bonding device, the inner surface of polishing strengthening with external bonding device circumferential band 1;
(6) stickup is reinforced: with angle grinding machine clamping emery disc polishing mark ring surface 9, polishing area is slightly larger than the area of mark ring surface 9, cutting glass fabric, makes the width of glass fabric after cutting equal with the width of strengthening with external bonding device circumferential band 1, and length can around mark ring surface 9 three weeks; The inner surface of ring surface 9 and strengthening with external bonding device circumferential band 1 is marked with acetone solvent cleaning, the epoxide resin AB glue that blade coating one deck step (3) is deployed on mark ring surface 9, the glass fabric cut is pasted one deck on mark ring surface 9, to strike off after compacting blade coating one deck epoxide resin AB glue again, method pastes triplex glass fiber cloth like this, outermost glass fabric even blade coating one deck epoxide resin AB glue; Be fixed after the inner surface of strengthening with external bonding device circumferential band 1 applies one deck epoxide resin AB glue and be installed on mark ring surface region, strengthening with external bonding device is made to clamp diffusion pump shell gradually by the cone point bolt 4 tightened in the middle of strengthening with external bonding device on gusset, the epoxide resin AB glue extruded is struck off joint filling simultaneously, naturally place 24 hours; In this step, reinforcing the object of pasting is prevent sticking strength not enough, and bearing capacity is little.
(7) suppress and leak hunting: after 24 hours, treat that it solidifies completely, be installed into the rubber hose of the mouth of a river and water outlet, open inlet valve, suppress 0.25MPa, observe without after drainage, polishing reinforcing sticker, sprays paint.
Embodiment 5:
Utilize strengthening with external bonding device of the present invention to carry out the crackle Bonded Repair method of vacuum drying oven diffusion pump cast iron housing crackle, as described in Example 4, its difference is mending course: after the first frictioning of step (4), naturally place 8 hours; During album leave aluminium flake as room temperature lower than 25 DEG C time, curing rate is slow, available electric-heating air blower blowing hot-air, and hot blast temperature is no more than 50 DEG C, accelerates solidification; Step (6) is placed 36 hours naturally, treats that it solidifies completely; The pressure that step (7) suppresses water is 0.4MPa.
Claims (10)
1. a vacuum drying oven diffusion pump cast iron housing crackle strengthening with external bonding device, is characterized in that, this device comprises circumferential band, connection fixture and locating slot connection fixture, and described connection fixture and locating slot connection fixture are separately positioned on the two ends of circumferential band;
Wherein, described connection fixture comprises base plate, is arranged on the both sides gusset of base plate dual-side, is arranged on base plate one end and the middle gusset that be connected vertical with both sides gusset, and the curved setting of described base plate, described middle gusset arranges through hole;
Described locating slot connection fixture comprises base plate, is arranged on the both sides gusset of base plate dual-side, is arranged on base plate one end and the middle gusset that be connected vertical with both sides gusset, the curved setting of described base plate, described middle gusset arranges through hole, described both sides gusset and middle gusset form a detent, when seated, described connection fixture embeds and is arranged in detent, makes the middle gusset of connection fixture and the middle gusset of locating slot connection fixture by being fixed together after bolt-through through hole.
2. vacuum drying oven diffusion pump cast iron housing crackle strengthening with external bonding device as claimed in claim 1, is characterized in that, in the middle of described two, gusset is provided with two through holes respectively.
3. vacuum drying oven diffusion pump cast iron housing crackle strengthening with external bonding device as claimed in claim 2, is characterized in that, the right flank of the middle gusset of described connection fixture is fixedly installed two nuts be connected with through hole.
4. vacuum drying oven diffusion pump cast iron housing crackle strengthening with external bonding device as claimed in claim 1, it is characterized in that, one end of described circumferential band is set to tongue bars shape warpage end, and the other end of described circumferential band is set to right angle arc end.
5. vacuum drying oven diffusion pump cast iron housing crackle strengthening with external bonding device as claimed in claim 4, it is characterized in that, the middle gusset of described connection fixture is arranged on the tongue bars shape warpage end 10-15mm place of distance circumferential band, and the middle gusset of described locating slot connection fixture is arranged on the arc end 5-10mm place, right angle of distance circumferential band.
6. utilize the strengthening with external bonding device as described in any one of claim 1 to 5 to carry out a crackle Bonded Repair method for vacuum drying oven diffusion pump cast iron housing crackle, comprise the steps,
(1) draining: the rubber hose of vacuum drying oven diffusion pump water inlet and water outlet is pulled down, drains the water in vacuum drying oven diffusion pump;
(2) polishing cracks: vacuum drying oven diffusion pump cast iron housing cracks is polished, polishing area is greater than whole crackle area occupied, and by cracks polishing in " V " type mouth-shaped, cleans buffed surface simultaneously;
(3) patching material is prepared: cutting flake aluminum and glass fabric, the area of flake aluminum is slightly less than the polishing area in step (2), the area of glass fabric is less than the area of flake aluminum and at least can covers whole crackle area occupied, and to be pasted of flake aluminum of polishing;
(4) on the shell cracks buffed surface after step (2) process, blade coating one deck epoxide resin AB glue is as adhesive, the glass fabric that step (3) cuts is pasted on the buffed surface of cracks, to strike off after compacting blade coating one deck epoxide resin AB glue again, to paste on glass fabric after to be pasted blade coating one deck epoxide resin AB glue of flake aluminum, strike off compacting, naturally place after 4-8 hour, glue-line primary solidification;
(5) profiling mould: the flake aluminum surface that polishing primary solidification is good, strengthening with external bonding device is arranged on the ring surface of diffusion pump cracks, and make strengthening with external bonding device and vacuum drying oven diffusion pump contact surface reach the laminating of more than 80%, then, outline along strengthening with external bonding device circumferential band is rule on vacuum drying oven diffusion pump shell, form mark ring surface, pull down strengthening with external bonding device, the inner surface of polishing strengthening with external bonding device circumferential band;
(6) stickup is reinforced:
A. polishing mark ring surface, polishing area is slightly larger than the area of mark ring surface;
B. cutting glass fabric, makes the width of glass fabric after cutting equal with the width of strengthening with external bonding device circumferential band;
C. the inner surface of cleaning mark ring surface and strengthening with external bonding device, blade coating epoxide resin AB glue on mark ring surface, the glass fabric cut is pasted one deck on mark ring surface, to strike off after compacting blade coating one deck epoxide resin AB glue again, method is wound around parcel stickup layer 2-4 glass fabric like this, outermost glass fabric even blade coating one deck epoxide resin AB glue; Be fixed after the inner surface of strengthening with external bonding device circumferential band applies one deck epoxide resin AB glue and be installed on the mark ring surface region of sticking glass fabric, strengthening with external bonding device is made to clamp diffusion pump shell gradually by the bolt tightened in the middle of strengthening with external bonding device on gusset, the epoxide resin AB glue extruded is struck off joint filling simultaneously, be naturally placed to and solidify completely.
(7) suppress and leak hunting: completely after solidification, install the water inlet of vacuum drying oven diffusion pump and the rubber hose of water outlet, open inlet valve, suppress 0.25-0.4MPa, observe without after drainage, polishing reinforcing sticker, sprays paint.
7. carry out the crackle Bonded Repair method of vacuum drying oven diffusion pump cast iron housing crackle as claimed in claim 6, it is characterized in that, in described step (2), also a fabrication hole is respectively bored to vacuum drying oven diffusion pump cast iron housing crackle two ends terminal.
8. carry out the crackle Bonded Repair method of vacuum drying oven diffusion pump cast iron housing crackle as claimed in claim 6, it is characterized in that, the cleaning process in described step (2) and step (7) uses acetone soln to clean.
9. carry out the crackle Bonded Repair method of vacuum drying oven diffusion pump cast iron housing crackle as claimed in claim 6, it is characterized in that, the bruting process in described step (2), (6), (7) uses angle grinding machine to polish.
10. carry out the crackle Bonded Repair method of vacuum drying oven diffusion pump cast iron housing crackle as claimed in claim 6, it is characterized in that, in described step (6) b, after cutting, the length of glass fabric at least can around mark ring surface 2-4 week; Naturally place more than 24 hours in described step (6), Crack Repairing bonding part is solidified completely.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562836.0A CN104439886B (en) | 2014-10-21 | 2014-10-21 | A kind of vacuum drying oven diffusion pump cast iron housing crackle strengthening with external bonding device and crackle Bonded Repair method |
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|---|---|---|---|
| CN201410562836.0A CN104439886B (en) | 2014-10-21 | 2014-10-21 | A kind of vacuum drying oven diffusion pump cast iron housing crackle strengthening with external bonding device and crackle Bonded Repair method |
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| CN104439886A true CN104439886A (en) | 2015-03-25 |
| CN104439886B CN104439886B (en) | 2016-08-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627025A (en) * | 2015-12-28 | 2016-06-01 | 钱光勇 | Repair method for cracks of cast iron pipe of pump station |
| CN106995036A (en) * | 2016-01-22 | 2017-08-01 | 江南造船(集团)有限责任公司 | The restorative procedure of rhombus independent liquid cargo tank protective layer |
| CN113134600A (en) * | 2021-04-26 | 2021-07-20 | 济南新峨嵋实业有限公司 | Sliding plate brick repairing method |
| CN115025933A (en) * | 2022-06-21 | 2022-09-09 | 中国工程物理研究院化工材料研究所 | Brittle material damage closing repair device and repair method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105627025A (en) * | 2015-12-28 | 2016-06-01 | 钱光勇 | Repair method for cracks of cast iron pipe of pump station |
| CN106995036A (en) * | 2016-01-22 | 2017-08-01 | 江南造船(集团)有限责任公司 | The restorative procedure of rhombus independent liquid cargo tank protective layer |
| CN106995036B (en) * | 2016-01-22 | 2018-11-16 | 江南造船(集团)有限责任公司 | The restorative procedure of diamond shape independent liquid cargo tank protective layer |
| CN113134600A (en) * | 2021-04-26 | 2021-07-20 | 济南新峨嵋实业有限公司 | Sliding plate brick repairing method |
| CN115025933A (en) * | 2022-06-21 | 2022-09-09 | 中国工程物理研究院化工材料研究所 | Brittle material damage closing repair device and repair method |
| CN115025933B (en) * | 2022-06-21 | 2023-09-29 | 中国工程物理研究院化工材料研究所 | Brittle material damage bridging repair method |
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