CN101525854A - Small-dimension high-strength polyethylene tubular sinnet for fishing - Google Patents
Small-dimension high-strength polyethylene tubular sinnet for fishing Download PDFInfo
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- CN101525854A CN101525854A CN200810034165A CN200810034165A CN101525854A CN 101525854 A CN101525854 A CN 101525854A CN 200810034165 A CN200810034165 A CN 200810034165A CN 200810034165 A CN200810034165 A CN 200810034165A CN 101525854 A CN101525854 A CN 101525854A
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Abstract
The invention provides a small-dimension high-strength polyethylene tubular sinnet for fishing, relates to a tubular sinnet for fishing, and provides the small-dimension high-strength polyethylene tubular sinnet for fishing. The tubular sinnet adopts a high-strength polyethylene monofilament for fishing, and is characterized in that a nominal diameter of a rope core is determined by an empirical factor for the rope core multiplied by a nominal diameter of the tubular sinnet, wherein the empirical factor for the rope core is between 0.978 and 0.983, and the number of yarns for the rope core is an even integer; the number of yarns for the rope core equals to (the nominal diameter of the rope core/the diameter of the monofilament)<2>*the empirical factor of the yarns for the rope core, and the empirical factor of the yarns for the rope core is between 0.240 and 0.260; a thread pitch is determined by the nominal diameter of the tubular sinnet multiplied by an empirical factor of the thread pitch, and the empirical factor of the thread pitch is between 6.784 and 7.040; the number of rope strands is 16; the number of the yarns for the rope strands equals to (the nominal diameter of the sinnet/the diameter of the monofilament)*the empirical factor of the number of the yarns for the rope strands, and the empirical factor of the number of the yarns of the rope strands is between 0.250 and 0.350; core is filled in the center of the tubular sinnet; and the cross section of the sinnet is a round shape.
Description
Technical field:
The present invention relates to the tubular rope of fishing.
Background technology
Rope is the widely used materials in field such as fishery, boats and ships and military affairs.By structure, rope can be divided into torsade and sennit; And sennit can be subdivided into tubular sennit and 8 strands plaited rope by structure.Tubular sennit is meant by the regular rope that is woven into tubular structure of some rope strands; Wherein, at the wire rope core that is called of the filler of tubular sennit central part configuration, the rope strand braid that is wrapped in wire rope core outer tubular structure is called tubular sennit face.Tubular sennit is important fishing rope material, and its sorting technique is a lot, has or not by central part and fills out core and be divided into tubular sennit of core and the tubular sennit of centreless are arranged; Be divided into 4 femoral canal shape sennits, 6 femoral canal shape sennits and 8 femoral canal shape sennits etc. by number of share of stock; Be divided into the tubular sennit of polyethylene, the tubular sennit of polyamide and the tubular sennit of polyester etc. by rope making with matrix material; Be divided into common tubular sennit and high-strength tubular sennit by intensity.Along with the braiding machine industrial expansion, advantage such as tubular sennit is high-strength, wear-resisting with it, compact conformation and knotted netting size of mesh are stable obtains the position of a seat gradually in Modern Fishery.Small dimension 16 femoral canal shape sennits between diameter 4mm～8mm are to use wider knotted netting material in the domestic and international large-scale trawl-net fishing, and in addition, it is also as aquaculture net cage guiding principle rope or all kinds of fishing gear rete cord.Current fishing is with in the tubular sennit processing, the general not filling wire rope core at the center of sennit, this cause all rope strands outside the masterpiece time spent rope metaboly easily takes place, reduced the security of fishery; In addition, use in the tubular sennit of the polyethylene processing enterprise in existing fishing, the sennit monofilament is that common polythene monofilament, sennit technology are also comparatively single; And polyethylene monofilament is as the rope matrix material of tubular sennit, mainly make at present through traditional melt-spinning technology, common polythene monofilament high-class product fracture strength standard index is 5.60cN/dtex, and the fishing high-strength polyethylene monofilament that adopts self-reinforcing process to produce, its fracture strength is up to 7.24cN/dtex.The common polythene filament strength is lower, and the brute force of the tubular sennit of its braiding is also lower.Sennit technology is (as the wire rope core nominal diameter, wire rope core silk quantity, pitch, rope strand tension force, rope strand quantity and wire rope core have or not etc.) be directly connected to the physical property of rope, if processing technology imperfection, will have a strong impact on the physical and mechanical properties of rope, therefore, existing fishing is with still not adopting with fishing high-strength polyethylene monofilament in the tubular sennit processing of small dimension polyethylene, the small-dimension high-strength polyethylene tubular sinnet for fishing of special tubular sennit processes, and the small-dimension high-strength polyethylene tubular sinnet for fishing processing method has also just become the long-term pendent technical barrier in prior art field (fishing for technical field).Small-dimension high-strength polyethylene tubular sinnet for fishing has adapted to the development need of China's Modern Fishery, improved rate of utilization of strength and the fishing suitability of China's fishing, helped China's sustainable development of fishery with the knot stability of the outward appearance of the tubular sennit of small dimension polyethylene, cost performance, cross section circularity, mechanical property, knotted netting, structural stability, monofilament.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of small-dimension high-strength polyethylene tubular sinnet for fishing processing method, the rate of utilization of strength and the fishing suitability of the knot stability of the outward appearance of raising small-dimension high-strength polyethylene tubular sinnet for fishing, cost performance, cross section circularity, mechanical property, knotted netting, structural stability, monofilament under the situation that does not increase tubular sennit nominal diameter are to satisfy the needs that China's Modern Fishery maximization, modernization and deepwater work are becomed privileged.
Technical scheme of the present invention adopts fishing high-strength polyethylene monofilament, and the wound packages fishing is carried out branch silk by rope strand or wire rope core with silk quantity with the high-strength polyethylene monofilament, thereby obtains rope strand or wire rope core silk; Make rope strand or wire rope core keep tension force of the same size weaving on the bobbin, thereby obtain rope strand or wire rope core braiding bobbin around being around on the pipe machine with silk; By tubular sennit technological requirement, match pitch and corresponding pickwheel thereof again; It is characterized in that multiply by wire rope core by tubular sennit nominal diameter determines the wire rope core nominal diameter with empirical coefficient, wire rope core adopts 0.978～0.983 with empirical coefficient, and wire rope core adopts even number with the silk radical; Determine wire rope core silk quantity in conjunction with wire rope core with the silk empirical coefficient by the wire rope core nominal diameter, wire rope core silk quantity=(a wire rope core nominal diameter ÷ filament diameter)
2* wire rope core adopts 0.240～0.260 with silk empirical coefficient, wire rope core with the silk empirical coefficient; Multiply by the pitch empirical coefficient by tubular sennit nominal diameter and determine pitch, the pitch empirical coefficient adopts 6.784～7.040; Rope strand quantity adopts 16 strands; Determine rope strand silk quantity in conjunction with rope strand with silk quantity empirical coefficient by the sennit nominal diameter, rope strand silk quantity=(sennit nominal diameter ÷ filament diameter) * rope strand adopts 0.250～0.350 with a quantity empirical coefficient, rope strand with a quantity empirical coefficient; Tubular sennit central part is filled out core; The sennit cross section is circular; Rope strand is woven bobbin place on the bobbin ingot of 16 ingot braiding machines, fill out core and place on the ingot iron of braiding machine bottom with wire rope core braiding bobbin, the monofilament on the wire rope core braiding bobbin is introduced in the medium pore of braiding machine bottom, and draws from the braiding thread guide eyelet; Start braiding keeps the equalization of strain between each rope strand during braiding, between rope strand and the rope strand mutually interlacing become tubular sennit face, wire rope core then is filled in the central authorities of tubular sennit; At last the tubular sennit of weaving forming is drawn from braiding machine, and be wound on the work beam, be made into small-dimension high-strength polyethylene tubular sinnet for fishing.
Good effect of the present invention is the rate of utilization of strength of knot stability, structural stability, monofilament of the small-dimension high-strength polyethylene tubular sinnet for fishing outward appearance produced, cost performance, cross section circularity, mechanical property, knotted netting and the fishing raising with suitability, both guaranteed fishing rope safety, the sustainable sound development needs of China's fishery have been satisfied, saved energy consumption again, improved traditional fishing rope life cycle, increased the wind and wave resistance fluidity energy of rope, have good energy efficiency effect.
The specific embodiment
Embodiment 1: the small-dimension high-strength polyethylene tubular sinnet for fishing of nominal diameter 4mm:
With common HDPE is raw material, adopt self-reinforcing process to prepare the fishing high-strength polyethylene monofilament of diameter 0.20mm, its fracture strength improves about 29% than fishing in GB 10023 standards with polyethylene monofilament Grade A index, with the small-dimension high-strength polyethylene tubular sinnet for fishing of this monofilament as processing diameter 4mm;
By formula (1)～formula (4) determine processing nominal diameter 4mm the small-dimension high-strength polyethylene tubular sinnet for fishing technological parameter (as wire rope core with empirical coefficient k get 0.980, the employing 3.53 of wire rope core nominal diameter, wire rope core with a silk empirical coefficient c get 0.246, wire rope core with a silk quantity n adopt 77, pitch empirical coefficient β gets 7.000, pitch P employing 28.0mm, rope strand with a quantity empirical coefficient δ get 0.256, rope strand gets 5 with a quantity m);
D＝(Φ-2×d)×k (1)
D in the formula---wire rope core nominal diameter, the mm of unit (getting two-decimal);
φ---tubular sennit nominal diameter, the mm of unit (round numbers);
D---filament diameter, the mm of unit (getting two-decimal);
K---wire rope core empirical coefficient, 0.978≤k≤0.983.
n＝(D÷d)
2×c (2)
N in the formula---wire rope core silk quantity, unit root (round numbers);
D---wire rope core nominal diameter, the mm of unit (getting two-decimal);
D---filament diameter, the mm of unit (getting two-decimal);
C---a wire rope core silk empirical coefficient, 0.240≤c≤0.260.
P＝φ×β (3)
P in the formula-tubular sennit pitch, the mm of unit (getting a decimal);
φ---tubular sennit nominal diameter, the mm of unit (round numbers);
β---tubular sennit pitch empirical coefficient, 6.784≤β≤7.040.
M in the formula---rope strand silk quantity, unit root (round numbers);
φ---tubular sennit nominal diameter, the mm of unit (round numbers);
D---filament diameter, the mm of unit (getting two-decimal);
δ---a rope strand silk quantity empirical coefficient, 0.250≤δ≤0.350 (δ gets three decimals).
The wound packages fishing is carried out branch silk by rope strand or wire rope core with silk quantity (5 or 77) with the high-strength polyethylene monofilament; Adopt special tubular sennit technology (wire rope core with empirical coefficient k get 0.980, the employing 3.53 of wire rope core nominal diameter, wire rope core with a silk empirical coefficient c get 0.246, wire rope core with a silk quantity n adopt 77, pitch empirical coefficient β gets 7.000, pitch P adopts 28.0mm, rope strand with a quantity empirical coefficient δ get 0.256, rope strand gets 5 with a quantity m), fishing is woven into the small-dimension high-strength polyethylene tubular sinnet for fishing of nominal diameter 4mm by 16 ingot braiding machines with the high-strength polyethylene monofilament.
The result shows through mechanical test, under equivalent diameter, the disrumpent feelings brute force of the nominal diameter 4mm small-dimension high-strength polyethylene tubular sinnet for fishing that this method is produced, tubercle brute force are respectively up to 2806N, 1736N, and the fishing of existing same diameter all is improved largely with the polyethylene rope brute force; The elongation at yield rate of the diameter 4mm small-dimension high-strength polyethylene tubular sinnet for fishing that this method is produced is 14.3%, and percentage elongation meets the fish production needs.The present invention combines fishing effectively with high-strength polyethylene monofilament new material and special sennit technology, produce the small-dimension high-strength polyethylene tubular sinnet for fishing that is fit to fish production, it act as the rate of utilization of strength and the fishing suitability of the outward appearance that improves existing small-dimension high-strength polyethylene tubular sinnet for fishing, cost performance, cross section circularity, mechanical property, knotted netting knot stability, structural stability, monofilament.
Embodiment 2: the small-dimension high-strength polyethylene tubular sinnet for fishing of nominal diameter 5mm:
With common HDPE is raw material, adopt self-reinforcing process to prepare the fishing high-strength polyethylene monofilament of diameter 0.20mm, its fracture strength improves about 29% than fishing in GB 10023 standards with polyethylene monofilament Grade A index, with the small-dimension high-strength polyethylene tubular sinnet for fishing of this monofilament as processing nominal diameter 5mm.
The small-dimension high-strength polyethylene tubular sinnet for fishing of determining processing nominal diameter 5mm by the formula among the embodiment 1 (1)～formula (4) with technological parameter (wire rope core with empirical coefficient k get 0.981, the employing 4.51 of wire rope core nominal diameter, wire rope core with a silk empirical coefficient c get 0.259, wire rope core with a silk quantity n employing 132, pitch empirical coefficient β get 6.800, pitch P employing 34.0mm, rope strand with a quantity empirical coefficient δ get 0.348, rope strand gets 7 with a quantity m);
The wound packages fishing is carried out branch silk by rope strand or wire rope core with silk quantity (7 or 132) with the high-strength polyethylene monofilament; Adopt special tubular sennit technology (wire rope core with empirical coefficient k get 0.981, the employing 4.51 of wire rope core nominal diameter, wire rope core with a silk empirical coefficient c get 0.259, wire rope core with a silk quantity n adopt 132, pitch empirical coefficient β gets 6.800, pitch P adopts 34.0mm, rope strand with a quantity empirical coefficient δ get 0.348, rope strand gets 7 with a quantity m), fishing is woven into the small-dimension high-strength polyethylene tubular sinnet for fishing of nominal diameter 5mm by 16 ingot braiding machines with the high-strength polyethylene monofilament.
The result shows through mechanical test, under equivalent diameter, the disrumpent feelings brute force of the nominal diameter 5mm small-dimension high-strength polyethylene tubular sinnet for fishing that this method is produced, tubercle brute force are respectively up to 4491N, 2717N, and the fishing of existing same diameter all is improved largely with the polyethylene rope brute force; The elongation at yield rate of the diameter 5mm small-dimension high-strength polyethylene tubular sinnet for fishing that this method is produced is 15.2%, and percentage elongation meets the fish production needs.This method combines fishing effectively with high-strength polyethylene monofilament new material and special sennit technology, produce the small-dimension high-strength polyethylene tubular sinnet for fishing that is fit to fish production, it act as and improves rate of utilization of strength and the fishing suitability of existing fishing with the outward appearance of the tubular sennit of polyethylene, cost performance, cross section circularity, mechanical property, knotted netting knot stability, structural stability, monofilament.
Therefore, the invention solves the existing long-term pendent technical barrier of technical field of fishing for, be applicable to fish production with the nominal diameter 4mm of the present invention's production and the small-dimension high-strength polyethylene tubular sinnet for fishing of 5mm, it not only tradition have disrumpent feelings brute force, the powerful advantage of tubercle with the tubular sennit of common polythene, and can improve and have rate of utilization of strength and the fishing suitability of fishing now with the outward appearance of tubular sennit, cost performance, cross section circularity, mechanical property, knotted netting knot stability, structural stability, monofilament.
Rope making is to influence fishing with the performance of the tubular sennit of the polyethylene especially key factor of mechanical property with the height of polyethylene monofilament intensity, the present invention is a raw material with common HDPE, adopt self-reinforcing process to prepare the fishing high-strength polyethylene monofilament of diameter 0.20mm, its fracture strength (7.24cN/dtex) improves 29.3% than fishing in GB 10023 standards with polyethylene monofilament high-class product fracture strength standard index (5.60cN/dtex), the present invention adopts fishing to use the high-strength polyethylene monofilament as the rope making material, thereby improved the fishing tubular sennit brute force of polyethylene, it act as by improving the traditional rope making intensity with monofilament, thereby improves the mechanical property of small-dimension high-strength polyethylene tubular sinnet for fishing.
Wire rope core nominal diameter and wire rope core are directly connected to tubular sennit outward appearance, disrumpent feelings brute force and cross section circularity with silk quantity; If wire rope core is with silk very little, then sennit cross section circularity relatively poor and when using wire rope core can have a strong impact on the outward appearance and the disrumpent feelings brute force of sennit prior to the fracture of sennit face; If wire rope core is too many with silk, wire rope core can be given prominence to from the gap of rope strand when sennit was made knot, formed a large amount of silks of jumping, and had a strong impact on the outward appearance and the mechanical property of tubular sennit; A large amount of testing and verifications show between tubular sennit nominal diameter that the present invention produces, wire rope core nominal diameter, the filament diameter and exist functional relation that the present invention adopts special wire rope core to improve the outward appearance of tubular sennit, disrumpent feelings brute force and cross section circularity with empirical coefficient (0.978～0.983), wire rope core with an empirical coefficient (0.240～0.260).
Pitch is directly connected to tubular sennit outward appearance, disrumpent feelings brute force and stitch length, if pitch is excessive or too small, visible defects such as back of the body thigh, face degree of tightness and the distortion of strand shape may appear in the sennit that is made into, a large amount of testing and verifications show that fishing exists certain linear with pitch and its diameter of the tubular sennit of polyethylene, and the present invention adopts special pitch empirical coefficient (6.784～7.040) to improve the outward appearance and the disrumpent feelings brute force of tubular sennit.
Around pipe, in the braiding process if do not keep rope strand, the wire rope core equalization of strain of tubular sennit, then will cause rope strand, the filament length in the wire rope core of sennit inconsistent, this can cause monofilament local pressure in sennit back of the body thigh or the rope, greatly reduce the disrumpent feelings brute force of tubular sennit, the present invention by rope strand or wire rope core equalization of strain regulate make rope strand or wire rope core on the pipe machine around pipe, make rope strand keep tension force of the same size on braiding machine, to weave, improved the rate of utilization of strength of the outward appearance of tubular sennit, disrumpent feelings brute force and monofilament.
The number of strands magnitude relation is to the cost performance of fishing with tubular sennit, rope strand too much can increase branch wire process and production cost, rope strand is crossed can influence outward appearance, hydrodynamic performance and fishing suitability at least, the present invention adopts special rope strand quantity (16 strands) to improve the cost performance of tubular sennit, has adapted to the fish production needs preferably.
Rope strand arrives the performance of fishing with tubular sennit with the silk quantitative relation, rope strand is too much or very few with silk, may cause tubular sennit face degree of tightness, and then have influence on moulding, outward appearance and the disrumpent feelings brute force of tubular sennit, the ratio that a large amount of testing and verifications show tubular sennit nominal diameter and filament diameter and rope strand are with existing certain linear between the quantity, and the present invention adopts special rope strand to improve the performance of tubular sennit with a quantity empirical coefficient (0.250～0.350).
Whether tubular sennit central authorities fill out core is related to the performance of fishing with tubular sennit, compare with the tubular sennit of centreless, there is the tubular sennit of core to increase the knot stability and the structural stability of knotted netting, the present invention is filled in tubular sennit central authorities with fishing with high-strength polyethylene monofilament wire rope core, has improved the knot stability and the structural stability of tubular sennit outward appearance, disrumpent feelings brute force, knotted netting greatly.
In a word, the tubular sennit technology that the present invention is special has solved the long-term pendent technical barrier in prior art field (fishing for technical field), use processing technologys such as silk quantity with silk quantity, pitch, rope strand tension force, rope strand quantity and rope strand with wire rope core by adjusting traditional tubular sennit, thereby improve the rate of utilization of strength of outward appearance, cost performance, cross section circularity, mechanical property, knotted netting knot stability, structural stability and the monofilament of tubular sennit, finally reach and improve the purpose of its fishing with suitability.
Claims (2)
1, small-dimension high-strength polyethylene tubular sinnet for fishing adopts the wound packages fishing to carry out branch silk by rope strand or wire rope core with silk quantity with the high-strength polyethylene monofilament, obtains rope strand or wire rope core silk; Rope strand or wire rope core keep tension force of the same size weaving on the bobbin around being around on the pipe machine with silk, thereby obtain rope strand or wire rope core braiding bobbin; By tubular sennit technological requirement, match pitch and corresponding pickwheel thereof again; It is characterized in that multiply by wire rope core by tubular sennit nominal diameter determines the wire rope core nominal diameter with empirical coefficient, wire rope core adopts 0.978～0.983 with empirical coefficient, and wire rope core adopts even number with the silk radical; Wire rope core silk quantity=(a wire rope core nominal diameter ÷ filament diameter)
2* wire rope core adopts 0.240～0.260 with silk empirical coefficient, wire rope core with the silk empirical coefficient; Multiply by the pitch empirical coefficient by tubular sennit nominal diameter and determine pitch, the pitch empirical coefficient adopts 6.784～7.040; Rope strand quantity adopts 16 strands; Rope strand uses silk quantity empirical coefficient to adopt 0.250～0.350 with silk quantity=(sennit nominal diameter ÷ filament diameter) * rope strand silk quantity empirical coefficient, rope strand; Tubular sennit central part is filled out core; The sennit cross section is circular; Rope strand is woven bobbin place on the bobbin ingot of 16 ingot braiding machines, fill out core and place on the ingot iron of braiding machine bottom with wire rope core braiding bobbin, the monofilament on the wire rope core braiding bobbin is introduced in the medium pore of braiding machine bottom, and draws from the braiding thread guide eyelet; Start braiding keeps the equalization of strain between each rope strand during braiding, between rope strand and the rope strand mutually interlacing become tubular sennit face, wire rope core then is filled in the central authorities of tubular sennit; At last the tubular sennit of weaving forming is drawn from braiding machine, and be wound on the work beam, be made into small-dimension high-strength polyethylene tubular sinnet for fishing.
2, small-dimension high-strength polyethylene tubular sinnet for fishing according to claim 1 is characterized in that being made into the nominal diameter 4mm or the 5mm of small-dimension high-strength polyethylene tubular sinnet for fishing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100341655A CN101525854B (en) | 2008-03-03 | 2008-03-03 | Small-dimension high-strength polyethylene tubular sinnet for fishing |
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| CN2008100341655A CN101525854B (en) | 2008-03-03 | 2008-03-03 | Small-dimension high-strength polyethylene tubular sinnet for fishing |
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| CN101525854A true CN101525854A (en) | 2009-09-09 |
| CN101525854B CN101525854B (en) | 2012-01-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409482A (en) * | 2011-09-06 | 2012-04-11 | 中国水产科学研究院东海水产研究所 | Method for preparing energy-saving consumption-reducing type core braided rope used for net |
| CN102418235A (en) * | 2011-09-06 | 2012-04-18 | 中国水产科学研究院东海水产研究所 | Method for processing fishing energy-saving mixed braided wire |
| CN102418233A (en) * | 2011-09-06 | 2012-04-18 | 中国水产科学研究院东海水产研究所 | Method for braiding energy-saving rope for aquaculture net cage or trawl gear |
| CN102877340A (en) * | 2012-10-22 | 2013-01-16 | 陶香川 | Coated mooring rope made of high-molecular-weight polyethylene fibers |
| CN104179048A (en) * | 2014-07-22 | 2014-12-03 | 中国矿业大学 | Rope design method with multiple parameters synthesized |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2887941Y (en) * | 2006-04-05 | 2007-04-11 | 中国水产科学研究院东海水产研究所 | Sea anchor rope for squid fishing |
| CN200964537Y (en) * | 2006-10-08 | 2007-10-24 | 中国水产科学研究院东海水产研究所 | Self-reinforced polyethylene rope for fishing |
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- 2008-03-03 CN CN2008100341655A patent/CN101525854B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409482A (en) * | 2011-09-06 | 2012-04-11 | 中国水产科学研究院东海水产研究所 | Method for preparing energy-saving consumption-reducing type core braided rope used for net |
| CN102418235A (en) * | 2011-09-06 | 2012-04-18 | 中国水产科学研究院东海水产研究所 | Method for processing fishing energy-saving mixed braided wire |
| CN102418233A (en) * | 2011-09-06 | 2012-04-18 | 中国水产科学研究院东海水产研究所 | Method for braiding energy-saving rope for aquaculture net cage or trawl gear |
| CN102877340A (en) * | 2012-10-22 | 2013-01-16 | 陶香川 | Coated mooring rope made of high-molecular-weight polyethylene fibers |
| CN104179048A (en) * | 2014-07-22 | 2014-12-03 | 中国矿业大学 | Rope design method with multiple parameters synthesized |
| CN104179048B (en) * | 2014-07-22 | 2016-03-30 | 中国矿业大学 | A kind of rope method for designing of comprehensive multi-parameter |
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