CN105004591A - Steel wire rope breaking and stretching casting object and device of casting test method thereof - Google Patents
Steel wire rope breaking and stretching casting object and device of casting test method thereof Download PDFInfo
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- CN105004591A CN105004591A CN201510480870.8A CN201510480870A CN105004591A CN 105004591 A CN105004591 A CN 105004591A CN 201510480870 A CN201510480870 A CN 201510480870A CN 105004591 A CN105004591 A CN 105004591A
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- 238000005266 casting Methods 0.000 title claims abstract description 114
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 18
- 239000010959 steel Substances 0.000 title claims abstract description 18
- 238000010998 test method Methods 0.000 title claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000004576 sand Substances 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 17
- 239000004568 cement Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 34
- 239000002245 particle Substances 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 22
- 238000012360 testing method Methods 0.000 abstract description 21
- 238000002360 preparation method Methods 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 3
- 244000007853 Sarothamnus scoparius Species 0.000 description 11
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 239000003822 epoxy resin Substances 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000010125 resin casting Methods 0.000 description 4
- 239000003643 water by type Substances 0.000 description 4
- 238000005464 sample preparation method Methods 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 241000500881 Lepisma Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- LESWRIKTQXPFLL-UHFFFAOYSA-N [Sb].[Sn].[Bi] Chemical compound [Sb].[Sn].[Bi] LESWRIKTQXPFLL-UHFFFAOYSA-N 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910000597 tin-copper alloy Inorganic materials 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a steel wire rope breaking and stretching casting object. The steel wire rope breaking and stretching casting object comprises high early strength cement, silica sand with grain size ranging from 0.5 to 1 mm and water, and the proportion between the high early strength cement, the silica sand with grain size ranging from 0.5 to 1 mm and the water is 2.5-4.5: 0.75-1.5: 0.3-0.8. A device of a casting test method of the steel wire rope breaking and stretching sample comprises two groups of casting test molds (3) which are the same in structure, and each casting test mold is provided with a through casting chamber (2) in the center. By means of the steel wire rope breaking and stretching casting object and the device of the casting test method thereof, the problems that in an existing steel wire rope sample preparing method, the sample preparation period is long, the sample preparation cost is high, the operation is not easy to achieve and harm is generated are solved, and the purposes that the operation is simple and convenient, the cost is reduced, the period is shortened, the application range is wide and the safety performance is good are achieved. The steel wire rope breaking and stretching casting object and the device of the casting test method thereof have the advantages of being accurate and stable in testing result and safe and convenient to operate.
Description
Technical field
The invention belongs to breaking tensile test of rope technical field, what relate generally to is a kind of wire rope breaking tensile
Water the device of casting material and casting test method thereof.
Background technology
The object of breaking tensile test of rope is the manufacturer such as steel wire, wire rope, the foundation that user and testing agency provide manufacture, use and detect, be used for the actual rupture pull force of Accurate Determining wire rope, in avoiding using, wire rope is because stretch disrumpent feelings generation security incident and quality accident.
Comparatively common sample preparation method has alloy casting method, epoxy resin casting method, sleeve pipe pressing, directly chucking method and winding method etc. five kinds at present.Alloy casting method is broken up by wire rope sample two ends steel wire, clean up, then (mostly adopt slicker solder or lead-tin-copper alloy as watering casting material with molten alloy casting, add the low-melting-point metals such as a small amount of tin bismuth antimony if desired to reduce cast temperature), on tension tester, carry out tension test after being cooled to normal temperature; Epoxy resin casting method is broken up by wire rope sample two ends steel wire, cleans up, and then with epoxy resin casting, is arranged on testing machine and tests after solidification; Suitable metal sleeve is loaded onto in sample two ends by sleeve pipe pressing, firm with pressing machine compacting, then tests on testing machine; Direct chucking method is tested at the jaw that tensile test machine grip holder is suitable by direct for sample clamping; Winding method be sample is directly wrapped in wrapping test wheel grooving in test.The actual rupture pull force that also can measure wire rope that these test methods have, but these methods more or less still have the following disadvantages: 1. produce harmful gas to people and environmental danger in alloy casting energy consumption high, cycle long, sample making course; 2. epoxy resin is expensive, causes sample preparation cost high; 3. sleeve pipe pressing needs for different size processing metal sleeve pipe, in thick specification wire rope then need 1000 tons even large pressing machine of 5000 tons, invest huge, cost is very high; 4. directly chucking method be only applicable to that diameter is little, silk number is few, the simple sub-thread of structure or metal-cored wire rope; 5. be wound around rule due to the ratio in winding wheel and rope footpath be not less than 20 requirement, rope footpath is just difficult to carry out test more than testing machine existing during 30mm, and the defect of this sample preparation method is difficult to the actual rupture pull force of Accurate Determining wire rope.
Summary of the invention
The object of this invention is to provide a kind of wire rope breaking tensile and water casting material and casting test method thereof.Solve that the sample preparation cycle that existing wire rope sample preparation method exists is long, sample preparation cost is high, operation not easily realizes, produces the problems such as harm, reach easy and simple to handle, reduce costs, the shortening cycle, have wide range of applications, object that security performance is good.There is measurement result accurately, reliably, handling safety, easily feature.
The present invention realizes the technical scheme that above-mentioned purpose adopts: a kind of wire rope breaking tensile sample water casting material, described casting material of watering comprises ferrocrete, the silica sand of 0.5-1mm particle diameter and water, and the silica sand of described ferrocrete, 0.5-1mm particle diameter and the ratio of water are 2.5-4.5:0.75-1.5:0.3-0.8.
Add silica sand, iron filings, copper scale particle additive in described ferrocrete, described additive can add one arbitrarily, also can add arbitrarily two kinds or all add, this additive and account for about 1/3rd of cement amount.
The device of wire rope breaking tensile casting test method comprises the identical casting die trial of two set constructors, and the center of often group casting die trial has through builds chamber.
Described casting die trial is Split type structure, be that rectangular taper steel-casting forms by two pieces, left and right outer shape, after the block casting steel part combination of left and right two, the conical through hole of intermediate shape, two pieces, left and right rectangular taper steel-casting has bolt hole, is bolted connection.
Described chamber of building is conical bore.
In the port position of described casting die trial, the stuff thickness of namely building the small-caliber end filling of chamber is 0.5-1cm.Described chamber of building is conical bore.
Described stuff are cotton or cloth floccus.
Preparation method of the present invention comprises the following steps:
(1), wire rope sample two ends is made broom head termination;
(2), by the broom head termination, side of wire rope sample be positioned over one group casting die trial in build chamber, and casting die trial port position, the small-caliber end of namely building chamber is filled with stuff;
(3), fastening casting die trial; casting die trial to be positioned on bracing frame and casting die trial upper end open upward; ferrocrete is watered casting material to pour into and build in chamber in casting die trial, water after casting material solidifies until ferrocrete, adopt same procedure to cast to termination, wire rope sample other side;
(4), water after casting material solidifies completely until both sides ferrocrete, wire rope sample is taken out from casting die trial, puts into tension tester and measure.
Above-mentioned ferrocrete water casting material pour into casting die trial in need constantly to stir drainage.
The present invention can bring obvious beneficial effect by adopting ferrocrete as watering casting material, first, the structure aspect of device---there is structure simple, easy to operate, be easy to the advantages such as popularization; Test method aspect---there is the advantages such as cycle short, quick, dependable performance; Cost aspect---there is material and easily get, the advantage such as to reduce costs; Environmental protection aspect---have that environmental hazard is little, refuse is easy to the advantages such as process; Security performance aspect---have and reduce the advantage such as security incident and quality accident.In a word, adopt ferrocrete to water casting material not only setting time is fast, intensity is high, and later strength still can the advantage such as sustainable growth, obviously shorten the test period, greatly reduce the impact on environment and operating personnel, and test figure accuracy rate is up to more than 95%.In a word, there is measurement result accurately, reliably, handling safety, easily feature.For the manufacturer such as steel wire, wire rope, the foundation that user and testing agency provide manufacture, use and detect, avoids security incident and the quality accident of the disrumpent feelings generation because wire rope stretches in using.
And adopt the motlten metals such as traditional lead, tin, aldary as when watering casting material, hot casting mode must be adopted, cut the wire rope of certain length, steel wire rope end head made broom head shapes and carry out surface treatment, with the alloy molten solution of uniform temperature and certain mass proportioning, wire rope broom head is cast into cone shape, by casting die sealed bottom in casting cycle, prevents alloy molten solution from spilling from gap, form test specimen after casting cooling, thus carry out overall breaking force of steel wire rope test.These class methods, alloy molten process and the cooling procedure cycle long and loaded down with trivial details, temperature is wayward, and the gas that melting and cooling procedure volatilize can cause no small infringement to operating personnel and environment, very strict to requirement for environmental conditions.Equally, adopt epoxy resin casting as when watering casting material, still must adopt hot casting mode, must with heat gun by epoxy melting, by epoxy resin and the hardening agent proportions according to 4:1, form test specimen after casting cooling, sample making course can cause damage to environment and operating personnel equally.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, wire rope sample, 2, build chamber, 3, casting die trial, 4, bolt, 5, stuff, 6, broom head termination.
Embodiment
By reference to the accompanying drawings, embodiments of the invention are provided as follows.But the present invention does not limit to following examples.
Embodiment 1
The casting material of watering of the wire rope breaking tensile sample described in the present embodiment is ferrocrete, the silica sand of 0.5-1mm particle diameter and the potpourri of water, and the silica sand of ferrocrete, 0.5-1mm particle diameter and the ratio of water are 2.5:0.75:0.3.
Embodiment 2
The casting material of watering of the wire rope breaking tensile sample described in the present embodiment is ferrocrete, the silica sand of 0.5-1mm particle diameter and the potpourri of water, and the silica sand of ferrocrete, 0.5-1mm particle diameter and the ratio of water are 3:1.5:0.5.
Embodiment 3
The casting material of watering of the wire rope breaking tensile sample described in the present embodiment is ferrocrete, the silica sand of 0.5-1mm particle diameter and the potpourri of water, and the silica sand of ferrocrete, 0.5-1mm particle diameter and the ratio of water are 4.5:1:0.8.
The preparation method watering casting material described in above-described embodiment 1-3 is: at normal temperatures the silica sand of ferrocrete, 0.5-1mm particle diameter and water are proportionally put into agitated kettle, under cement mortar strength stirring machine after stirring at low speed 60s, high-speed stirred 60s again, stir to reach, the effect of good fluidity, total mixing time should more than 3min.
Described ferrocrete can adopt (special fast type) repaid hardening sulphoaluminate cement of more than 42.5 grades, also can adopt the aluminate ferrocrete of more than 42.5 grades or other have that micro-expansibility, basicity are low, "dead", the ferrocrete of high stability.
For increasing the cohesive force of watering casting material and sample, in ferrocrete, the particle additive of the high rigidity such as silica sand, iron filings, copper scale can be added in proportion, strengthening and watering the integral rigidity of building and the friction force with wire rope.Silica sand, iron filings, copper scale can add one separately, also can add two kinds or all add, this additive and account for about 1/3rd of cement amount.
The device that the present invention realizes above-mentioned wire rope breaking tensile sample casting test method comprises the identical casting die trial of two set constructors.As shown in Figure 1: the center of often group casting die trial 3 all has through builds chamber 2, and this builds chamber 2 for conical bore.Dismantle the demoulding for convenience, often group casting die trial 3 is all designed to Split type structure, namely be that rectangular taper steel-casting forms by two pieces, left and right outer shape, the conical through hole of intermediate shape after the block casting steel part combination of left and right two, on the rectangular taper steel-casting of two pieces, left and right, two ends have two groups of symmetrical bolts hole, and are fixedly connected with by four symmetrical between two bolts 4.The broom head termination, two ends 6 of wire rope sample 1 is put into two groups respectively and waters mold 3, with bolt 4 tighten fixing after, in the port position of casting die trial 3, the small-caliber end of namely building chamber 2 is filled with the thick stuff of 0.5-1cm 5, casting ferrocrete waters casting material to building in chamber 2, and steel wire rope end head is cast into cone.
During use, wire rope sample 1 two ends is made broom head termination 6, first termination, side first can be positioned in one group of casting die trial 3, around sample, place appropriate stuff 5 in casting die trial 3 port position, guarantee that sample 1 can strong bonded with casting die trial 3.By four bolts 4 casting die trial 3 tightened fixing after, be positioned on bracing frame to ensure casting die trial 3 upper end open upward, by stirring, the ferrocrete of good fluidity waters casting material and pours into rapidly in casting die trial 3, pour in process and constantly can stir drainage, until water casting material to be full of casting die trial 3.Water after casting material solidifies until ferrocrete, same procedure can be adopted to cast to termination, other side.Water after casting material solidifies completely until both sides ferrocrete, wire rope sample 1 is taken out from casting die trial 3, puts into tension tester jaw, apply pulling force, to measure the maximum, force of wire rope breaking tensile by test condition.
The test method of wire rope breaking tensile sample comprises the following steps:
1, wire rope sample 1 two ends is made broom head termination 6.Concrete mode is: firmly tie up with materials such as soft iron silks respectively apart from a clamping length L place at wire rope sample 1 two ends, remove termination and tie up silk, make broom head termination 6.In order to cast firmly, need remove broom head Steel Wire Surface greasy dirt, fibre core is switched to ties up place.And alignment must not be carried out to exposed steel wire in any case, but allow to bend to hook.
2, first the broom head termination, side 6 of wire rope sample 1 is positioned in one group of casting die trial 3.And in the port position of die trial 3 of casting, the small-caliber end of namely building chamber 2 is filled with the thick stuff of 0.5-1cm 5, and these stuff 5 can be the floccus such as cotton, cloth, object prevents from sample casting and forming process, water casting material to spill from casting die trial.Casting die trial 3 is two groups, constructs identical, fixes the two ends of wire rope sample 1 respectively.
3, fastening casting die trial 3, and casting die trial 3 is positioned on bracing frame to ensure casting die trial 3 upper end open upward.Pour the casting material of watering after having stirred into building in chamber 2 in casting die trial 3 fast, pouring in process must constantly drainage, avoids bringing bubble into, is full of builds chamber 2 until water casting material.
4, water after casting material solidifies until ferrocrete, adopt same procedure to cast termination, side in addition to wire rope sample 1.
5, water after casting material solidifies completely until both sides ferrocrete, wire rope sample 1 is taken out from casting die trial 3, puts into tension tester jaw, apply pulling force, to measure the maximum, force of wire rope breaking tensile by test condition.
The undeclared part of the present invention is known technology.
Claims (8)
1. a wire rope breaking tensile sample water casting material, it is characterized in that: described in water casting material and comprise ferrocrete, the silica sand of 0.5-1mm particle diameter and water, the silica sand of described ferrocrete, 0.5-1mm particle diameter and the ratio of water are in order to 2.5-4.5:0.75-1.5:0.3-0.8.
2. wire rope breaking tensile sample according to claim 1 water casting material, it is characterized in that: add silica sand, iron filings, copper scale graininess additive in proportion at described ferrocrete, described additive can add one arbitrarily, also can add arbitrarily two kinds or all add, this additive and account for 1/3rd of cement amount.
3. a device for wire rope breaking tensile sample casting test method, is characterized in that: comprise the casting die trial (3) that two set constructors are identical, and the center of often group casting die trial has through builds chamber (2).
4. the device of wire rope breaking tensile sample casting test method according to claim 3, it is characterized in that: described casting die trial (3) is Split type structure, be that rectangular taper steel-casting forms by two pieces, left and right outer shape, the conical through hole of intermediate shape after the block casting steel part combination of left and right two, two pieces, left and right rectangular taper steel-casting has bolt hole, is fixedly connected with by bolt (4).
5. the device of wire rope breaking tensile sample casting test method according to claim 3, is characterized in that: described chamber (2) of building is conical bore.
6. the device of wire rope breaking tensile sample casting test method according to claim 3, it is characterized in that: in the port position of described casting die trial (3), the stuff thickness of namely building the small-caliber end filling of chamber (2) is 0.5-1cm.
7. the device of wire rope breaking tensile sample casting test method according to claim 3, is characterized in that: described chamber (2) of building is conical bore.
8. the device of wire rope breaking tensile sample casting test method according to claim 6, is characterized in that: described stuff (5) are cotton or cloth floccus.
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| CN201510480870.8A CN105004591A (en) | 2015-08-03 | 2015-08-03 | Steel wire rope breaking and stretching casting object and device of casting test method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352805A (en) * | 2015-11-11 | 2016-02-24 | 贵州钢绳股份有限公司 | Super-large-type whole rope breaking force tester |
| CN105928790A (en) * | 2016-07-12 | 2016-09-07 | 攀钢集团研究院有限公司 | Steel strand tensile test method |
| CN106018082A (en) * | 2016-05-16 | 2016-10-12 | 中国航空工业集团公司西安飞机设计研究所 | Method for applying tension load to special-shaped profile sectional material |
| CN106769308A (en) * | 2016-12-19 | 2017-05-31 | 鞍钢钢绳有限责任公司 | The method for preventing overall breaking force of steel wire rope from testing wire rope core fusing when filling head |
| CN107063840A (en) * | 2016-11-30 | 2017-08-18 | 内蒙动力机械研究所 | A kind of device for solid rocket motor case list skirt axis pulling experiment |
| CN109855965A (en) * | 2019-01-10 | 2019-06-07 | 中钢集团郑州金属制品研究院有限公司 | A kind of experimental rig and its method carrying out steel cord breaking tensile test |
| CN111239041A (en) * | 2020-02-03 | 2020-06-05 | 天津大学 | Steel wire pulling-out test device under high temperature |
| CN113567205A (en) * | 2021-06-18 | 2021-10-29 | 中钢集团郑州金属制品研究院股份有限公司 | Novel sample preparation method suitable for actual breaking force test of steel wire rope |
| CN114279781A (en) * | 2021-12-07 | 2022-04-05 | 上海卫星装备研究所 | Preparation device and preparation method of groove type heat pipe mechanical tensile sample |
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Cited By (14)
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| CN105352805A (en) * | 2015-11-11 | 2016-02-24 | 贵州钢绳股份有限公司 | Super-large-type whole rope breaking force tester |
| CN106018082A (en) * | 2016-05-16 | 2016-10-12 | 中国航空工业集团公司西安飞机设计研究所 | Method for applying tension load to special-shaped profile sectional material |
| CN106018082B (en) * | 2016-05-16 | 2019-01-18 | 中国航空工业集团公司西安飞机设计研究所 | A kind of method that abnormal shape section profile applies tensile load |
| CN105928790A (en) * | 2016-07-12 | 2016-09-07 | 攀钢集团研究院有限公司 | Steel strand tensile test method |
| CN107063840B (en) * | 2016-11-30 | 2021-11-26 | 内蒙动力机械研究所 | Device for single skirt axial tension test of solid rocket engine shell |
| CN107063840A (en) * | 2016-11-30 | 2017-08-18 | 内蒙动力机械研究所 | A kind of device for solid rocket motor case list skirt axis pulling experiment |
| CN106769308A (en) * | 2016-12-19 | 2017-05-31 | 鞍钢钢绳有限责任公司 | The method for preventing overall breaking force of steel wire rope from testing wire rope core fusing when filling head |
| CN106769308B (en) * | 2016-12-19 | 2019-08-20 | 鞍钢钢绳有限责任公司 | Method to prevent the rope core from melting when the whole wire rope is broken and the tension test is filled |
| CN109855965A (en) * | 2019-01-10 | 2019-06-07 | 中钢集团郑州金属制品研究院有限公司 | A kind of experimental rig and its method carrying out steel cord breaking tensile test |
| CN111239041A (en) * | 2020-02-03 | 2020-06-05 | 天津大学 | Steel wire pulling-out test device under high temperature |
| CN113567205A (en) * | 2021-06-18 | 2021-10-29 | 中钢集团郑州金属制品研究院股份有限公司 | Novel sample preparation method suitable for actual breaking force test of steel wire rope |
| CN113567205B (en) * | 2021-06-18 | 2023-09-26 | 中钢集团郑州金属制品研究院股份有限公司 | Novel sample preparation method suitable for steel wire rope actual breaking force test |
| CN114279781A (en) * | 2021-12-07 | 2022-04-05 | 上海卫星装备研究所 | Preparation device and preparation method of groove type heat pipe mechanical tensile sample |
| CN114279781B (en) * | 2021-12-07 | 2024-02-09 | 上海卫星装备研究所 | Preparation device and preparation method of groove type heat pipe mechanical tensile sample |
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