CN111649041B - Machining and bonding method for airborne rocket shell slideway - Google Patents
Machining and bonding method for airborne rocket shell slideway Download PDFInfo
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- CN111649041B CN111649041B CN202010444278.3A CN202010444278A CN111649041B CN 111649041 B CN111649041 B CN 111649041B CN 202010444278 A CN202010444278 A CN 202010444278A CN 111649041 B CN111649041 B CN 111649041B
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000003754 machining Methods 0.000 title claims description 13
- 239000000853 adhesive Substances 0.000 claims abstract description 66
- 230000001070 adhesive effect Effects 0.000 claims abstract description 66
- 238000012545 processing Methods 0.000 claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 claims abstract description 30
- 238000005488 sandblasting Methods 0.000 claims description 52
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 39
- 229910001369 Brass Inorganic materials 0.000 claims description 37
- 239000010951 brass Substances 0.000 claims description 37
- 239000006004 Quartz sand Substances 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 24
- 238000012360 testing method Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 18
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 244000137852 Petrea volubilis Species 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 238000007711 solidification Methods 0.000 claims description 7
- 230000008023 solidification Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 11
- 238000004381 surface treatment Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 9
- 235000019441 ethanol Nutrition 0.000 description 9
- 238000005056 compaction Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Abstract
The invention discloses a method for processing and bonding a slide way of an airborne rocket shell, which comprises a pair of front slide ways and a pair of rear slide ways, wherein each front slide way comprises a front slide way body and a front sliding groove, and each rear slide way comprises a rear slide way body and a rear sliding groove; the method comprises the steps of processing a pair of front slideway bodies and a pair of rear slideway bodies, processing a pair of front chutes and a pair of rear chutes, manufacturing a sample, manufacturing a part, and bonding and curing the part and the sample. The adhesive with high shear strength and optimized curing parameters are selected, a high-efficiency adhesive surface treatment method, a high-precision integral positioning and clamping device special for bonding are adopted, the size precision design and processing of bonded parts are reasonable, the bonding effects of high bonding shear strength, high bonding precision and high bonding efficiency are obtained, and the bonding shear strength is improved from 26MPa to at least 40 MPa. The method not only can be used for processing and high-strength bonding of the slide way of the airborne rocket shell, but also can be used for processing and high-strength bonding of other similar product parts.
Description
Technical Field
The invention relates to the technical field of solid rocket combustion chamber shell processing, in particular to a method for processing and bonding a slide way of an airborne rocket shell.
Background
With the rapid development of technologies such as unmanned aerial vehicles, helicopters and the like, airborne defense products and environment detection products which take solid rockets as power are applied more and more, and the airborne defense products and the environment detection products are characterized by more requirements, high processing efficiency and low manufacturing cost.
The slide way of the airborne small rocket shell of a certain model is formed by bonding a brass slide way with good wear resistance with front and rear slide way joints of high-strength steel, the bonding shear strength is required to be not less than 28MPa, the size error is not more than 0.1mm after bonding and curing, and the machining efficiency is required to be high. The conventional bonding method of clamping and curing by using epoxy adhesive and separating a front slideway and a rear slideway is developed in the early stage, the maximum bonding shear strength is only 26MPa, and the size error after bonding and curing is more than 0.2 mm.
Disclosure of Invention
The invention aims to provide a method for processing and bonding a slide way of an airborne rocket shell, which has the advantages of high bonding strength, high dimensional precision, high processing efficiency and low manufacturing cost, aiming at the defects of the prior art.
In order to achieve the purpose, the invention provides a method for processing and bonding an airborne rocket shell slideway, which comprises a pair of front slideways and a pair of rear slideways, wherein each front slideway comprises a front slideway body and a front chute arranged in a guide groove of the front slideway body, and each rear slideway comprises a rear slideway body and a rear chute arranged in a guide groove of the rear slideway body; the method comprises the following steps:
1) processing of a pair of front slideway bodies and a pair of rear slideway bodies, and processing of a pair of front chutes and a pair of rear chutes
2) Preparation of samples and preparation of parts
21) Preparation of samples
The slideway steel flat plate is made of the same material as the slideway body, and the bonding surface of the slideway steel flat plate is subjected to rust and oil stain removal treatment; manufacturing a sliding chute brass flat plate by adopting the same material as the sliding chute, and carrying out sand blasting treatment on the bonding surface of the sliding chute brass flat plate; coating an adhesive on the bonding surface of the sliding chute brass flat plate after sand blasting treatment, and then combining and bonding the bonding surface of the sliding chute brass flat plate and the bonding surface of the sliding chute steel flat plate to manufacture a sample;
22) manufacture of parts
Rust and oil stain removing treatment is carried out on the bonding surface of the slideway body, and sand blasting treatment is carried out on the bonding surface of the chute; the bonding surface of the chute is coated with adhesive after sand blasting treatment, and then is bonded with the bonding surface of the slideway body in a matching way to manufacture a part;
3) adhesive curing of parts and specimens
31) Clamping the sample bonding surface in the step 2) by using a weight pressing block to apply clamping force, and positioning and clamping the part in the step 2) by using a special positioning and clamping device;
32) and (3) heating and preserving the sample clamped by the weight pressing block in the step 31) and the part positioned and clamped by the special positioning and clamping device in a furnace within 1 hour after bonding to solidify the adhesive, wherein the solidification temperature is 130-160 ℃, and the preserving time is 30-60 min.
Furthermore, 1321FS single-component epoxy resin structural adhesive is adopted as the adhesive.
Further, in the step 1), the groove widths of the pair of front and rear chute body guide grooves are the same as L3, and the machining accuracy and deviation of L3 are L3
The width of the pair of front chutes and the width of the pair of rear chutes are the same as L3*，L3*Same as L3 and L3*Has a machining accuracy and a deviation of
Further, in the step 21), removing rust and oil stains on the surface of the bonding surface of the steel flat plate of the slideway by using sand paper, absolute ethyl alcohol or acetone; carrying out sand blasting treatment on the bonding surface of the sliding chute brass flat plate by using quartz sand, wherein the mesh number of the quartz sand is 15-30; and (3) coating an adhesive on the bonding surface of the sliding chute brass flat plate within 4 hours after the sand blasting treatment.
Further, in the step 22), the bonding surface of the slide way body is cleaned of rust and oil stains on the surface by using sand paper, absolute ethyl alcohol or acetone, the bonding surface of the slide way is subjected to sand blasting treatment by using quartz sand, and the mesh number of the quartz sand is 15-30; and (3) coating adhesive on the bonding surface of the sliding chute within 4 hours after the sand blasting treatment, and then closing and bonding the bonding surface of the sliding chute and the bonding surface of the sliding chute body to manufacture a part.
Further, in the step 31), the clamping force is not less than 5 kg.
Further, in step 31), the special positioning and clamping device includes a fixing plate, a front locking screw and a rear locking screw, a front insertion hole is formed in the middle front portion of the fixing plate, a rear locking hole is formed in the middle rear portion of the fixing plate, the front end of the fixing plate is inserted between the pair of rear slideways until the front insertion hole is inserted into the front sliding groove of the pair of front slideways, the front locking screw is inserted into the front end of the fixing plate and penetrates through the front insertion hole to lock the pair of front sliding grooves, and the rear locking screw is inserted into the rear locking hole at the rear end of the fixing plate to lock the pair of rear sliding grooves.
Furthermore, the locking torque of the front locking screw and the locking torque of the rear locking screw are both 30-60N-m.
Further, the width L2 from the upper surface of the fixing plate to the lower surface of the fixing plate*The distance L2 between the bottoms of the guide grooves of the pair of back slide way bodies is smaller by 0.02-0.04 mm; the thickness L4 of the fixing plate*Is 0.01-0.03 mm smaller than the groove width L4 of the sliding groove; width L1 of the front insertion hole*The distance L1 between the bottoms of the guide grooves of the pair of front slide way bodies is 0.02-0.04 mm larger.
Compared with the prior art, the invention has the following advantages: according to the processing and bonding method of the airborne rocket shell slideway, disclosed by the invention, through process test research, an adhesive with high shear strength and optimized curing parameters are selected, an efficient bonding surface treatment method, a high-precision integral bonding positioning and clamping special device and reasonable size precision design and processing of bonded parts are adopted, the bonding effects of high bonding shear strength, high bonding precision and high bonding efficiency are obtained, the bonding shear strength is improved to at least 40MPa from 26MPa, the bonding precision is improved to 0.1mm from 0.2mm, and the bonding efficiency is improved to 0.5 hour from 4 hours. The processing and bonding method of the airborne rocket shell slideway not only can be used for processing and high-strength bonding of the airborne rocket shell slideway, but also can be used for processing and high-strength bonding of other similar product parts.
Drawings
FIG. 1 is a schematic structural view of an airborne rocket case;
FIG. 2 is a schematic view A-A of FIG. 1;
FIG. 3 is a schematic view of B-B of FIG. 1;
FIG. 4 is a schematic view of the front chute of FIG. 2;
FIG. 5 is a schematic structural view of a positioning and clamping device for special use in the present invention;
fig. 6 is a side view of fig. 5.
Wherein: the front slideway 1, the rear slideway 2, the front chute 3, the front slideway body 4, the rear slideway body 5, the rear slideway 6, the front locking screw 7, the rear locking screw 8, the front inserting hole 9, the rear locking hole 10 and the fixing plate 11.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
A machining and bonding method for an airborne rocket shell slideway is disclosed, wherein the airborne rocket shell slideway shown in figures 1, 2 and 3 comprises a pair of front slideways 1 and a pair of rear slideways 2, each front slideway 1 comprises a front slideway body 4 and a front chute 3 arranged in a guide groove of the front slideway body 4, each rear slideway 2 comprises a rear slideway body 5 and a rear chute 6 arranged in a guide groove of the rear slideway body 5, and the machining and bonding method specifically comprises the following steps:
1) processing of a pair of front slideway bodies and a pair of rear slideway bodies
The width of the guide grooves of the pair of front slide way bodies and the pair of rear slide way bodies is same as L3, and the processing precision and deviation of L3 are
Processing of a pair of front chutes and a pair of rear chutes
The width of the pair of front chutes and the width of the pair of rear chutes are the same as L3*，L3*Same as L3 and L3*Has a machining accuracy and a deviation of
As shown in fig. 4;
2) preparation of samples and preparation of parts
21) Preparation of samples
The slideway steel flat plate is made of the same material as the slideway body, and the bonding surface of the slideway steel flat plate is cleaned of surface rust and oil stain by sand paper, absolute ethyl alcohol or acetone;
manufacturing a chute brass flat plate by adopting the same material as the chute, and performing sand blasting treatment on the bonding surface of the chute brass flat plate by using quartz sand, wherein the mesh number of the quartz sand is 15-30;
coating an adhesive on the bonding surface of the sliding chute brass flat plate within 4 hours after the sand blasting treatment, and then combining and bonding the bonding surface of the sliding chute brass flat plate and the bonding surface of the sliding chute steel flat plate to manufacture a sample;
22) manufacture of parts
The bonding surface of the slideway body is cleaned of rust and oil stains on the surface by using abrasive paper, absolute ethyl alcohol or acetone, the bonding surface of the chute is subjected to sand blasting treatment by using quartz sand, and the mesh number of the quartz sand is 15-30; coating adhesive on the bonding surface of the sliding chute within 4 hours after the sand blasting treatment, and then closing and bonding the bonding surface of the sliding chute and the bonding surface of the sliding chute body to manufacture a part;
wherein, the bonding effect can be influenced by too large or too small number of quartz sand, and the bonding strength is reduced; after the sand blasting treatment, the adhesive is coated in 4 hours, if the time is too long, the bonding surface is oxidized, and the bonding strength is reduced;
the adhesive is 1321FS single-component epoxy resin structural adhesive produced by Beijing Tianshan New Material technology Co., Ltd, and the structural adhesive is a high-shear strength adhesive;
3) adhesive curing of parts and specimens
31) Clamping the bonding surface of the sample in the step 2) by using a weight pressing block to apply a clamping force, wherein the clamping force is not less than 5 kg; if the clamping force is too small, the bonding strength is reduced; positioning and clamping the part in the step 2) by using a special positioning and clamping device;
32) heating and preserving the sample clamped by the weight pressing block in the step 31) and the part positioned and clamped by the special positioning and clamping device in a furnace within 1 hour after bonding to solidify the adhesive, wherein the solidification temperature is 130-160 ℃, and the preserving time is 30-60 min; if the temperature is too low, the adhesive is not sufficiently cured, the bonding strength is reduced, and if the temperature is too high, the adhesive is decomposed and loses efficacy; if the heat preservation time is too short, the adhesive is not sufficiently cured, the bonding strength is reduced, and if the heat preservation time is too long, the processing efficiency is reduced, and energy is wasted;
as shown in fig. 5 and 6, the special positioning and clamping device includes a fixing plate 11, a front locking screw 7 and a rear locking screw 8, the front middle portion of the fixing plate 11 is provided with a front insertion hole 9, the rear middle portion of the fixing plate 11 is provided with a rear locking hole 10, the front end of the fixing plate is inserted between the pair of rear slideways until the front insertion hole is inserted into the slideways of the pair of front slideways, the front locking screw 7 is inserted into the front end of the fixing plate 11 and passes through the front insertion hole 9 to lock the pair of front slideways 3, and the rear locking screw 8 is inserted into the rear locking hole 10 at the rear end of the fixing plate 11 to lock the pair of rear slideways 6; the locking torque of the front locking screw and the locking torque of the rear locking screw are both 30-60 N.m, if the locking torque of the screws is too small, the bonding strength can be reduced, and if the locking torque of the screws is too large, deformation or damage of the locking screws can be caused.
Wherein the width from the upper surface of the fixing plate to the lower surface of the fixing plate is L2*The distance between the bottoms of the rear slide way body guide grooves is smaller than L2 (namely the distance between the bottom of one rear slide way body guide groove and the bottom of the other rear slide way body guide groove is L2) by 0.02-0.04 mm;
thickness L4 of fixed plate*Is 0.01-0.03 mm smaller than the groove width L4 of the sliding groove;
inner diameter L1 of front insertion hole*The distance between the two ends of the front slide way body guide groove is 0.02-0.04 mm larger than the distance L1 between the two ends of the front slide way body guide groove (namely the distance between the bottom of one front slide way body guide groove and the bottom of the other front slide way body guide groove is L1);
4) sample detection
And (3) testing the bonding shear strength of the cured sample, wherein the bonding shear strength of the sample is not less than 40 MPa.
A30 CrMnSiA (namely a slideway steel flat plate) and HPb 59-1Y brass (a chute brass flat plate) sample bonding test which is the same as a product material is carried out on a single-component epoxy resin structural adhesive with three brands of 1321FS, TS832 and TS828 produced by Beijing Tianshan new material technology Limited company and an HY-528 high-temperature adhesive film, and the test results are shown in the following table 1.
Binder selection test Table 1
| Serial number | Number plate | Curing conditions | Adhesive surface treatment and clamping | Shear strength (MPa) |
| 1 | 1321FS | 150℃30min | Sand blasting, 5kg weight compaction | 42.6 |
| 2 | TS832 | 80℃120min | Sand blasting, 5kg weight compaction | 28.8 |
| 3 | TS828 | 60℃60min | Sand blasting, 5kg weight compaction | 17.8 |
| 4 | HY-528 | 180℃120min | Sand blasting, 5kg weight compaction | 26.0 |
According to the test result, 1321FS single-component epoxy resin structural adhesive is selected as the adhesive of the slide way of the airborne small rocket shell. From the results of the binder selection test, the 1321FS single-component epoxy resin structural adhesive has high bonding strength and good bonding effect after the bonding surface is subjected to sand blasting treatment. However, the airborne small rocket shell slideway has a narrow structure, the sand blasting treatment operation is inconvenient, and a sand blasting protection clamp is required to be manufactured to protect the non-bonding surface from sand blasting. Therefore, comparative tests of different treatment methods of the bonding surface were performed, and the results of the test pieces are shown in Table 2 below.
Adhesion surface treatment selection test table 2
| Serial number | Number plate | Curing conditions | Treatment of adhesive surfaces | Shear strength (MPa) |
| 1 | 1321FS | 150℃30min | Ethanol cleaning | 16.3 |
| 2 | 1321FS | 150℃30min | Sanding with abrasive paper and cleaning with ethanol | 16.8 |
| 3 | 1321FS | 150℃30min | Brass sand blasting and ethanol cleaning | 41.6 |
| 4 | 1321FS | 150℃30min | Double-sided sand blasting and ethanol cleaning | 43.8 |
The test results show that the bonding surface of the brass sample is subjected to sand blasting treatment and the bonding surface of the 30CrMnSiA steel sample is subjected to ethanol cleaning, has high bonding strength and is convenient to operate in surface treatment, and the method is selected as the method for treating the bonding surface of the sample and the product. The principle is that the chemical activity of copper is poor, the chemical activity of iron is good, microscopic pits are formed by sand blasting on the surface of a copper sample, the inlaying effect of a bonding interface is increased, and the bonding shear strength is improved.
A solidification condition test is carried out by adopting a bonding method of carrying out sand blasting treatment on a bonding surface of a brass sample and carrying out ethanol cleaning treatment on the bonding surface of a 30CrMnSiA steel sample, and test results are shown in Table 3 below and meet the technical requirement that the bonding shear strength is not less than 28 MPa.
Curing Condition testing Table 3
| Serial number | Number plate | Curing conditions | Treatment of adhesive surfaces | Shear strength (MPa) |
| 1 | 1321FS | 130℃60min | Brass sand blasting and ethanol cleaning | 41.8 |
| 2 | 1321FS | 145℃45min | Brass sand blasting and ethanol cleaning | 42.6 |
| 3 | 1321FS | 160℃30min | Brass sand blasting and ethanol cleaning | 43.9 |
According to the processing and bonding method of the airborne rocket shell slideway, disclosed by the invention, through process test research, an adhesive with high shear strength and optimized curing parameters are selected, an efficient bonding surface treatment method, a high-precision integral bonding positioning and clamping special device and reasonable size precision design and processing of bonded parts are adopted, the bonding effects of high bonding shear strength, high bonding precision and high bonding efficiency are obtained, the bonding shear strength is improved to at least 40MPa from 26MPa, the bonding precision is improved to 0.1mm from 0.2mm, and the bonding efficiency is improved to 0.5 hour from 4 hours. The processing and bonding method of the airborne rocket shell slideway not only can be used for processing and high-strength bonding of the airborne rocket shell slideway, but also can be used for processing and high-strength bonding of other similar product parts.
Example 1
Aiming at a certain model 30CrMnSiA low-alloy high-strength steel small-sized shell, the shape diameter is 140mm, the length of the shell is 550mm, the distance L1 between the bottoms of a pair of front slideway body guide grooves is 26mm, the distance L2 between the bottoms of a pair of rear slideway body guide grooves is 62mm, the width L3 of the slideway body guide grooves is 7mm, the width L4 of the chutes is 5mm, the center distance L5 between the front slideway body and the rear slideway body is 360mm, and the length L6 of the slideway body is 50mm, the method for processing and bonding the airborne rocket shell slideway comprises the following steps:
1) processing of a pair of front slideway bodies and a pair of rear slideway bodies
The groove widths of the guide grooves of the pair of front slide rail bodies and the pair of rear slide rail bodies are the same and are L3, and the machining precision and deviation of L3 are L3
Processing of a pair of front chutes and a pair of rear chutes
The width of the pair of front chutes and the width of the pair of rear chutes are the same as L3*，L3*Same as L3 and L3*Has a machining accuracy and a deviation of
2) Preparation of samples and preparation of parts
21) Preparation of samples
The slideway steel flat plate is made of the same material as the slideway body, and the bonding surface of the slideway steel flat plate is cleaned of surface rust and oil stain by sand paper, absolute ethyl alcohol or acetone;
manufacturing a chute brass flat plate by adopting the same material as the chute, and carrying out sand blasting treatment on the bonding surface of the chute brass flat plate by using quartz sand, wherein the mesh number of the quartz sand is 15;
coating an adhesive on the bonding surface of the sliding chute brass flat plate within 4 hours after the sand blasting treatment, and then combining and bonding the bonding surface of the sliding chute brass flat plate and the bonding surface of the sliding chute steel flat plate to manufacture a sample;
22) manufacture of parts
The bonding surface of the slideway body is cleaned of rust and oil stains on the surface by using abrasive paper, absolute ethyl alcohol or acetone, the bonding surface of the chute is subjected to sand blasting treatment by using quartz sand, and the mesh number of the quartz sand is 15; coating adhesive on the bonding surface of the sliding chute within 4 hours after the sand blasting treatment, and then closing and bonding the bonding surface of the sliding chute and the bonding surface of the sliding chute body to manufacture a part;
wherein, the bonding effect can be influenced by too large or too small number of quartz sand, and the bonding strength is reduced; after the sand blasting treatment, the adhesive is coated in 4 hours, if the time is too long, the bonding surface is oxidized, and the bonding strength is reduced;
the adhesive is 1321FS single-component epoxy resin structural adhesive produced by Beijing Tianshan New Material technology Co., Ltd, and the structural adhesive is a high-shear strength adhesive;
3) adhesive curing of parts and specimens
31) Clamping the bonding surface of the sample in the step 2) by using a weight pressing block to apply a clamping force, wherein the clamping force is not less than 5 kg; if the clamping force is too small, the bonding strength is reduced; positioning and clamping the part in the step 2) by using a special positioning and clamping device;
32) heating and preserving the sample clamped by the weight pressing block in the step 31) and the part positioned and clamped by the special positioning and clamping device in the furnace within 1 hour after bonding to solidify the adhesive, wherein the solidification temperature is 130 ℃, and the preserving time is 60 min;
wherein the locking torque of the front locking screw and the rear locking screw is both 30 N.m; width L2 from upper surface of fixing plate to lower surface of fixing plate*Is 0.02mm smaller than the distance L2 between the bottoms of the guide grooves of the pair of back slide way bodies; thickness L4 of fixed plate*Is 0.01mm smaller than the groove width L4 of the sliding groove; inner diameter L1 of front insertion hole*The distance L1 between the bottoms of the guide grooves of the pair of front slide way bodies is 0.02mm larger;
4) sample detection
And (3) testing the bonding shear strength of the cured sample, wherein the bonding shear strength of the sample is not less than 40 MPa.
Example 2
Aiming at a certain model 30CrMnSiA low-alloy high-strength steel small-sized shell, the shape diameter is 180mm, the length of the shell is 850mm, the distance L1 between the bottoms of a pair of front slideway body guide grooves is 36mm, the distance L2 between the bottoms of a pair of rear slideway body guide grooves is 72mm, the width L3 of the slideway body guide groove is 9mm, the width L4 of the slideway is 7mm, the center distance L5 between the front slideway body and the rear slideway body is 560mm, and the length L6 of the slideway body is 66mm, the method for processing and bonding the airborne rocket shell slideway comprises the following steps:
1) processing of a pair of front slideway bodies and a pair of rear slideway bodies
The width of the guide grooves of the pair of front slide way bodies and the pair of rear slide way bodies is same as L3, and the processing precision and deviation of L3 are
Processing of a pair of front chutes and a pair of rear chutes
The width of the pair of front chutes and the width of the pair of rear chutes are the same as L3*，L3*Same as L3 and L3*Has a machining accuracy and a deviation of
2) Preparation of samples and preparation of parts
21) Preparation of samples
The slideway steel flat plate is made of the same material as the slideway body, and the bonding surface of the slideway steel flat plate is cleaned of surface rust and oil stain by sand paper, absolute ethyl alcohol or acetone;
manufacturing a chute brass flat plate by adopting the same material as the chute, and carrying out sand blasting treatment on the bonding surface of the chute brass flat plate by using quartz sand, wherein the mesh number of the quartz sand is 25;
coating an adhesive on the bonding surface of the sliding chute brass flat plate within 4 hours after the sand blasting treatment, and then combining and bonding the bonding surface of the sliding chute brass flat plate and the bonding surface of the sliding chute steel flat plate to manufacture a sample;
22) manufacture of parts
The bonding surface of the slideway body is cleaned of rust and oil stains on the surface by using abrasive paper, absolute ethyl alcohol or acetone, the bonding surface of the chute is subjected to sand blasting treatment by using quartz sand, and the mesh number of the quartz sand is 25; coating adhesive on the bonding surface of the sliding chute within 4 hours after the sand blasting treatment, and then closing and bonding the bonding surface of the sliding chute and the bonding surface of the sliding chute body to manufacture a part;
wherein, the bonding effect can be influenced by too large or too small number of quartz sand, and the bonding strength is reduced; after the sand blasting treatment, the adhesive is coated in 4 hours, if the time is too long, the bonding surface is oxidized, and the bonding strength is reduced;
the adhesive is 1321FS single-component epoxy resin structural adhesive produced by Beijing Tianshan New Material technology Co., Ltd, and the structural adhesive is a high-shear strength adhesive;
3) adhesive curing of parts and specimens
31) Clamping the bonding surface of the sample in the step 2) by using a weight pressing block to apply a clamping force, wherein the clamping force is not less than 5 kg; if the clamping force is too small, the bonding strength is reduced; positioning and clamping the part in the step 2) by using a special positioning and clamping device;
32) heating and preserving the sample clamped by the weight pressing block in the step 31) and the part positioned and clamped by the special positioning and clamping device in the furnace within 1 hour after bonding to solidify the adhesive, wherein the solidification temperature is 145 ℃, and the preserving time is 45 min;
wherein the locking torque of the front locking screw and the rear locking screw is 45 N.m; width L2 from upper surface of fixing plate to lower surface of fixing plate*Is 0.03mm smaller than the distance L2 between the bottoms of the guide grooves of the pair of back slide way bodies; thickness L4 of fixed plate*Is 0.02mm smaller than the groove width L4 of the sliding groove; inner diameter L1 of front insertion hole*The distance L1 between the bottoms of the guide grooves of the pair of front slide way bodies is 0.03mm larger;
4) sample detection
And (3) testing the bonding shear strength of the cured sample, wherein the bonding shear strength of the sample is not less than 40 MPa.
Example 3
Aiming at a certain model of 30Si2MnCrMoVE low-alloy high-strength steel small-sized shell, the shape diameter is 220mm, the length of the shell is 1150mm, the distance L1 between the bottoms of a pair of front slideway body guide groove bottoms is 36mm, the distance L2 between the bottoms of a pair of rear slideway body guide groove bottoms is 72mm, the width L3 of the slideway body guide groove is 11mm, the width L4 of the slideway is 9mm, the center distance L5 between a front slideway body and a rear slideway body is 560mm, and the length L6 of the slideway body is 80mm, the method for processing and bonding the airborne rocket shell slideway comprises the following steps:
1) processing of a pair of front slideway bodies and a pair of rear slideway bodies
The width of the guide grooves of the pair of front slide way bodies and the pair of rear slide way bodies is same as L3, and the processing precision and deviation of L3 are
Processing of a pair of front chutes and a pair of rear chutes
The width of the pair of front chutes and the width of the pair of rear chutes are the same as L3*，L3*Same as L3 and L3*Has a machining accuracy and a deviation of
2) Preparation of samples and preparation of parts
21) Preparation of samples
The slideway steel flat plate is made of the same material as the slideway body, and the bonding surface of the slideway steel flat plate is cleaned of surface rust and oil stain by sand paper, absolute ethyl alcohol or acetone;
manufacturing a chute brass flat plate by adopting the same material as the chute, and carrying out sand blasting treatment on the bonding surface of the chute brass flat plate by using quartz sand, wherein the mesh number of the quartz sand is 30;
coating an adhesive on the bonding surface of the sliding chute brass flat plate within 4 hours after the sand blasting treatment, and then combining and bonding the bonding surface of the sliding chute brass flat plate and the bonding surface of the sliding chute steel flat plate to manufacture a sample;
22) manufacture of parts
The bonding surface of the slideway body is cleaned of rust and oil stains on the surface by using abrasive paper, absolute ethyl alcohol or acetone, the bonding surface of the chute is subjected to sand blasting treatment by using quartz sand, and the mesh number of the quartz sand is 30; coating adhesive on the bonding surface of the sliding chute within 4 hours after the sand blasting treatment, and then closing and bonding the bonding surface of the sliding chute and the bonding surface of the sliding chute body to manufacture a part;
wherein, the bonding effect can be influenced by too large or too small number of quartz sand, and the bonding strength is reduced; after the sand blasting treatment, the adhesive is coated in 4 hours, if the time is too long, the bonding surface is oxidized, and the bonding strength is reduced;
the adhesive is 1321FS single-component epoxy resin structural adhesive produced by Beijing Tianshan New Material technology Co., Ltd, and the structural adhesive is a high-shear strength adhesive;
3) adhesive curing of parts and specimens
31) Clamping the bonding surface of the sample in the step 2) by using a weight pressing block to apply a clamping force, wherein the clamping force is not less than 5 kg; if the clamping force is too small, the bonding strength is reduced; positioning and clamping the part in the step 2) by using a special positioning and clamping device;
32) heating and preserving the sample clamped by the weight pressing block in the step 31) and the part positioned and clamped by the special positioning and clamping device in a furnace within 1 hour after bonding to solidify the adhesive, wherein the solidification temperature is 160 ℃, and the preserving time is 30 min;
wherein the locking torque of the front locking screw and the rear locking screw is 60 N.m; width L2 from upper surface of fixing plate to lower surface of fixing plate*The distance L2 between the bottoms of the guide grooves of the pair of back slide way bodies is smaller by 0.04 mm; thickness L4 of fixed plate*Is 0.03mm smaller than the groove width L4 of the sliding groove; inner diameter L1 of front insertion hole*The distance L1 between the bottoms of the guide grooves of the pair of front slide way bodies is 0.04mm larger;
4) sample detection
And (3) testing the bonding shear strength of the cured sample, wherein the bonding shear strength of the sample is not less than 40 MPa.
Claims (7)
1. A method for processing and bonding an airborne rocket shell slideway comprises the steps that the airborne rocket shell slideway comprises a pair of front slideways (1) and a pair of rear slideways (2), each front slideway (1) comprises a front slideway body (4) and a front chute (3) installed in a guide groove of the front slideway body (4), and each rear slideway (2) comprises a rear slideway body (5) and a rear chute (6) installed in a guide groove of the rear slideway body (5); the method is characterized in that: the method comprises the following steps:
1) processing of a pair of front slideway bodies and a pair of rear slideway bodies, and processing of a pair of front chutes and a pair of rear chutes
2) Preparation of samples and preparation of parts
21) Preparation of samples
The slideway steel flat plate is made of the same material as the slideway body, and the bonding surface of the slideway steel flat plate is subjected to rust and oil stain removal treatment; manufacturing a sliding chute brass flat plate by adopting the same material as the sliding chute, and carrying out sand blasting treatment on the bonding surface of the sliding chute brass flat plate; coating an adhesive on the bonding surface of the sliding chute brass flat plate after sand blasting treatment, and then combining and bonding the bonding surface of the sliding chute brass flat plate and the bonding surface of the sliding chute steel flat plate to manufacture a sample;
22) manufacture of parts
Rust and oil stain removing treatment is carried out on the bonding surface of the slideway body, and sand blasting treatment is carried out on the bonding surface of the chute; the bonding surface of the chute is coated with adhesive after sand blasting treatment, and then is bonded with the bonding surface of the slideway body in a matching way to manufacture a part;
3) adhesive curing of parts and specimens
31) Clamping the sample bonding surface in the step 2) by using a weight pressing block to apply clamping force, and positioning and clamping the part in the step 2) by using a special positioning and clamping device;
the special positioning and clamping device comprises a fixing plate (11), a front locking screw (7) and a rear locking screw (8), wherein a front insertion hole (9) is formed in the middle front part of the fixing plate (11), a rear locking hole (10) is formed in the middle rear part of the fixing plate (11), the front end of the fixing plate (11) is inserted into a pair of rear slideways (2) until the front insertion hole (9) is inserted into a pair of front chutes (3) of the front slideways (1), the front locking screw (7) is inserted into the front end of the fixing plate (11) and penetrates through the front insertion hole (9) to lock the pair of front chutes (3), and the rear locking screw (8) is inserted into the rear locking hole (10) in the rear end of the fixing plate (11) to lock the pair of rear chutes (6);
32) heating and preserving the sample clamped by the weight pressing block in the step 31) and the part positioned and clamped by the special positioning and clamping device in a furnace within 1 hour after bonding to solidify the adhesive, wherein the solidification temperature is 130-160 ℃, and the preserving time is 30-60 min;
4) sample detection
And (3) testing the bonding shear strength of the cured sample, wherein the bonding shear strength of the sample is not less than 40 MPa.
2. The method of forming and bonding a slide for an airborne rocket shell according to claim 1, wherein: the adhesive is 1321FS single-component epoxy resin structural adhesive.
3. The method of forming and bonding a slide for an airborne rocket shell according to claim 1, wherein: in the step 1), the groove widths of the pair of front slideway bodies and the pair of rear slideway body guide grooves are the same as L3, and the processing precision and deviation of L3 are L3
The width of the pair of front chutes and the width of the pair of rear chutes are the same as L3*，L3*Same as L3 and L3*Has a machining accuracy and a deviation of
4. The method of forming and bonding a slide for an airborne rocket shell according to claim 1, wherein: in the step 21), removing rust and oil stains on the surface of the bonding surface of the steel flat plate of the slideway by using abrasive paper, absolute ethyl alcohol or acetone; carrying out sand blasting treatment on the bonding surface of the sliding chute brass flat plate by using quartz sand, wherein the mesh number of the quartz sand is 15-30; and (3) coating an adhesive on the bonding surface of the sliding chute brass flat plate within 4 hours after the sand blasting treatment.
5. The method of forming and bonding a slide for an airborne rocket shell according to claim 1, wherein: in the step 22), the bonding surface of the slide way body is cleaned of rust and oil stains on the surface by using sand paper, absolute ethyl alcohol or acetone, the bonding surface of the slide way is subjected to sand blasting treatment by using quartz sand, and the mesh number of the quartz sand is 15-30; and (3) coating adhesive on the bonding surface of the sliding chute within 4 hours after the sand blasting treatment, and then closing and bonding the bonding surface of the sliding chute and the bonding surface of the sliding chute body to manufacture a part.
6. The method of forming and bonding a slide for an airborne rocket shell according to claim 1, wherein: the locking torque of the front locking screw (7) and the locking torque of the rear locking screw (8) are both 30-60 Nm.
7. The method of forming and bonding a slide for an airborne rocket shell according to claim 1, wherein: the width L2 from the upper surface of the fixing plate (11) to the lower surface of the fixing plate (11)*The distance L2 between the bottoms of the guide grooves of the pair of back slideway bodies (5) is smaller by 0.02-0.04 mm; thickness L4 of the fixing plate (11)*Is 0.01-0.03 mm smaller than the groove width L4 of the sliding groove; width L1 of the front insertion hole (9)*The distance between the two ends of the front slideway bodies (4) is 0.02-0.04 mm larger than the distance L1 between the bottoms of the guide grooves.
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| JP2004060814A (en) * | 2002-07-30 | 2004-02-26 | Komatsu Ltd | Sliding part structure and bearing device |
| CN203658156U (en) * | 2013-12-23 | 2014-06-18 | 美巢集团股份公司 | Fixture for determining shearing intensity of tackiness agent |
| CN104631321B (en) * | 2015-01-30 | 2016-04-20 | 武汉船用机械有限责任公司 | A kind of processing method of main cable saddle of suspension bridge sliding pair |
| CN105983762B (en) * | 2015-02-05 | 2019-09-17 | 上海新力动力设备研究所 | Rocket engine cast exterior part group welding work table and rush-harvesting and rush-planting automatic soldering method |
| CN105891111B (en) * | 2016-05-30 | 2018-10-30 | 三友（天津）高分子技术有限公司 | A kind of sqtructural adhesive tensile and shear property test fixture and application method |
| CN206270124U (en) * | 2016-11-04 | 2017-06-20 | 中国建材检验认证集团股份有限公司 | Test material preparation device |
| CN110732844B (en) * | 2019-10-25 | 2020-10-09 | 湖北三江航天江北机械工程有限公司 | Processing method of multi-joint rocket shell |
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