CN103928107A - Novel inflaming retarding cable for electric welding machine - Google Patents

Abstract

The invention discloses a novel inflaming retarding cable for an electric welding machine. The novel inflaming retarding cable for the electric welding machine comprises a cable core. The cable core comprises a horizontal type S-shaped frame. The two sides of the S-shaped frame are respectively provided with a drainage wire. Semicircular arcs at the two ends of the S-shaped frame are provided with a control wire core and a power wire core respectively. The control wire core and the power wire core are arranged in parallel. The control wire core comprises two control conductors. The outer portion of each control conductor is provided with an ethylene propylene rubber insulating layer in an extruding mode and then the two control conductors are twisted. The control conductors are sequentially coated with a taped covering and a glass silk fireproof layer front inside to outside after being twisted. The power wire core comprises a power conductor. The cable core is sequentially coated with an aluminum plastic damp-stopping shielding comprehensive layer and a flat outer jacket. The S-shaped frame is adopted, so that the mechanical properties such as abrasion resistance, tearing resistance and tension resistance of the cable are further improved; the two sides of the S-shaped frame are respectively provided with one drainage wire so that leakage currents in the control wire core and the power wire core can be drained out in time and the use safety of the cable can be guaranteed.

Description

The fire-retardant flat cable of Novel welding machine

Technical field

The present invention relates generally to field of cables, relates in particular to the fire-retardant flat cable of a kind of Novel welding machine.

Background technology

Existing welding machine cable, comprise cable conductor, cable insulation, restrictive coating, insulation and sheath adopt rubber insulation and eraser sheath material, and the need of production of rubber insulation and sheath first refines glue, also need be in curing tube sulfuration its due mechanical performance of guarantee afterwards after Rubber Extruder is extruded, and aborning, if process parameter control is bad, also there will be and owe sulphur, the problems such as over cure and conductor oxidation blackout, the impact of factors, cause the production cost of cable large, the problems such as the production cycle is long, therefore development of new welding machine cable is the demand that adapts to market completely.

Traditional cable jacket material exists the poor shortcoming of environmental stress crack resistance, very responsive to environmental stress, easily ftractures, and affects the useful life of cable.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, provides a kind of Novel welding machine fire-retardant flat cable.The present invention improves the environmental stress crack resistance of cable jacket material, extends the useful life of cable.

The present invention is achieved by the following technical solutions:

The fire-retardant flat cable of a kind of Novel welding machine, include cable core, it is characterized in that: cable core includes horizontal S shape skeleton, the both sides of S shape skeleton are respectively equipped with a drainage thread, in the semicircular arc at S shape skeleton two ends, be respectively equipped with and control core, power core, controlling core and power core be arranged in parallel, control core and include two control conductors, control conductor for every and be extruded with respectively outward and carry out again after ethylene propylene rubber insulated layer insulating strandedly, be coated with successively from inside to outside lapping layer, glass fiber fireprotection layer after stranded; Power core includes a power conductor, and power conductor is coated with inner covering, silicone rubber insulation layer, fireproof mica layer from inside to outside successively; Cable core is coated with the oversheath of plastic-aluminum gear tide shielding synthetic layer, flat outward successively.

Jacket material is made up of the raw material of following weight portion: high density polyethylene (HDPE) 55-65, polypropylene 30-40, acrylonitrile-acrylate-styrene terpolymer 15-25, glyceryl tristearate 2.5-4.5, Dythal 2-3, zinc stearate 1-2, Octadecanoyl tributyl citrate 10-15, ammonium molybdate 5-10, two (diphenyl phosphoester) 7-14 of resorcinol, melamine coated ammonium polyphosphate 10-15, calcining loess 15-20, antioxidant 10351-2, ultra-violet absorber UV-91-2, modified mineral filler 10-15,

The preparation method of described modified mineral filler is as follows: a, take wollastonite, kaolin, pyrophillite, bauxite mix by weight 5-10:3-6:2-4:1, pulverize, cross 200-300 mesh sieve, 650-750 DEG C of calcining 20-30min, naturally cools to room temperature, b, the complex mineral filler of above-mentioned calcination processing is added water to pull an oar and make the suspension that concentration is 35-45%, the hydrochloric acid solution that is 15-20% by concentration regulates PH to 4-5, heating water bath is to 70-80 DEG C, 1500-2000rpm speed lapping 10-15min, then be neutralized to neutrality with the sodium hydroxide solution that concentration is 10-15%, leave standstill 20-30min, filter, distilled water washing 2-3 time for filter residue, after oven dry, add in mixer, under 500-1000rpm high-speed stirred, get the methoxy poly (ethylene glycol) monomethacrylates that is equivalent to complex mineral filler weight 3-5%, the Di(dioctylpyrophosphato) ethylene titanate of 0.5-1%, after mixing, the poly of 2-4% slowly adds in complex mineral filler with vaporific or droplet form, at 40-60 DEG C of temperature, stir 10-20min, dry, c, get and be equivalent to the haloflex of complex mineral filler weight 40-50%, the nylon 66 of 10-20%, the poly 1-butene of 5-10%, the N of 3-6%, after the complex mineral filler that the pulverized coal ash of N'-ethylenebisstearamide, 4-8% is processed with step b mixes, together drop into double screw extruder and carry out melt blending, then extruding pelletization, naturally cool to room temperature, be modification complex mineral filler.

The preparation method of jacket material of the present invention, comprises the following steps:

(1) LLDPE, polyvinyl chloride, ethylene-tetrafluoroethylene copolymer are dropped in kneader and mixed, then add Octadecanoyl tributyl citrate, resorcinol two (diphenyl phosphoester) to stir a moment, after plasticizer is by basic absorption, add glyceryl tristearate, Dythal, zinc stearate, make material temperature be raised to 75-85 DEG C by frictional heat, add again remaining raw material, when material temperature rises to 100-120 DEG C, material is discharged in cooling mixing machine and is lowered the temperature, discharging to below 45-55 DEG C time;

(2) above-mentioned kneaded raw material is dropped into extruding pelletization in double screw extruder, screw speed 80-120r/min, processing temperature is 150-180 DEG C;

(3) pack after metering.

Advantage of the present invention is:

The present invention has adopted S shape skeleton further to improve the mechanical performances such as wear-resisting, anti-tear, the tension of cable, the both sides of S shape skeleton are respectively equipped with a drainage thread, can in time the leakage current drainage of controlling in core, power core be gone out, ensure the safety in utilization of cable.Cable jacket material environmental stress cracking resistance excellence of the present invention, and there is the features such as good weatherability, resistant of high or low temperature, corrosion resistance, chemical stability, mechanical property, can in the adverse circumstances such as sweltering heat, cold, salt fog, dark and damp, acid rain, long-term normal work not ftracture.Long service life,

Brief description of the drawings

Fig. 1 is structural representation of the present invention.

Embodiment

As shown in Figure 1, the fire-retardant flat cable of a kind of Novel welding machine, include cable core, cable core includes horizontal S shape skeleton 1, the both sides of S shape skeleton 1 are respectively equipped with a drainage thread 2, in the semicircular arc at S shape skeleton 1 two ends, be respectively equipped with and control core, power core, controlling core and power core be arranged in parallel, control core and include two control conductors 3, control outer being extruded with respectively of conductor 3 for every and carry out again after ethylene propylene rubber insulated layer insulating 4 strandedly, be coated with successively from inside to outside lapping layer 5, glass fiber fireprotection layer 6 after stranded; Power core includes a power conductor 7, and power conductor 7 is coated with inner covering 8, silicone rubber insulation layer 9, fireproof mica layer 10 from inside to outside successively; Cable core is coated with the oversheath 12 of plastic-aluminum gear tide shielding synthetic layer 11, flat outward successively.

Oversheath 12 materials are made up of the raw material of following weight portion: high density polyethylene (HDPE) 60, polypropylene 35, acrylonitrile-acrylate-styrene terpolymer 20, glyceryl tristearate 3.5, Dythal 2.5, zinc stearate 1.5, Octadecanoyl tributyl citrate 12, ammonium molybdate 8, two (diphenyl phosphoesters) 9 of resorcinol, melamine coated ammonium polyphosphate 12, calcining loess 18, antioxidant 10351.5, ultra-violet absorber UV-91.5, modified mineral filler 15,

The preparation method of described modified mineral filler is as follows: a, take wollastonite, kaolin, pyrophillite, bauxite mix by weight 7:5:3:1, pulverize, cross 250 mesh sieves, 700 DEG C of calcining 25min, naturally cool to room temperature, b, the complex mineral filler of above-mentioned calcination processing is added water, and to make concentration be 40% suspension in making beating, the hydrochloric acid solution that is 18% by concentration regulates PH to 4.5, heating water bath to 75 DEG C, 2000rpm speed lapping 10min, then be neutralized to neutrality with the sodium hydroxide solution that concentration is 10-15%, leave standstill 20min, filter, distilled water washing 2 times for filter residue, after oven dry, add in mixer, under 800rpm high-speed stirred, get the methoxy poly (ethylene glycol) monomethacrylates that is equivalent to complex mineral filler weight 4%, 0.6% Di(dioctylpyrophosphato) ethylene titanate, after mixing, 3% poly slowly adds in complex mineral filler with vaporific or droplet form, at 50 DEG C of temperature, stir 15min, dry, c, get and be equivalent to the haloflex of complex mineral filler weight 45%, 15% nylon 66,5% poly 1-butene, 4% N, after the complex mineral filler that N'-ethylenebisstearamide, 6% pulverized coal ash are processed with step b mixes, together drop into double screw extruder and carry out melt blending, then extruding pelletization, naturally cool to room temperature, be modification complex mineral filler.

The preparation method of oversheath 12 materials, comprises the following steps:

(1) LLDPE, polyvinyl chloride, ethylene-tetrafluoroethylene copolymer are dropped in kneader and mixed, then add Octadecanoyl tributyl citrate, resorcinol two (diphenyl phosphoester) to stir a moment, after plasticizer is by basic absorption, add glyceryl tristearate, Dythal, zinc stearate, make material temperature be raised to 75-85 DEG C by frictional heat, add again remaining raw material, when material temperature rises to 100-120 DEG C, material is discharged in cooling mixing machine and is lowered the temperature, discharging to below 45-55 DEG C time;

(2) above-mentioned kneaded raw material is dropped into extruding pelletization in double screw extruder, screw speed 80-120r/min, processing temperature is 150-180 DEG C;

(3) pack after metering.

The results of property of oversheath 12 materials that make after testing, is as following table:

Claims (3)

1. the fire-retardant flat cable of Novel welding machine, include cable core, it is characterized in that: cable core includes horizontal S shape skeleton, the both sides of S shape skeleton are respectively equipped with a drainage thread, in the semicircular arc at S shape skeleton two ends, be respectively equipped with and control core, power core, controlling core and power core be arranged in parallel, control core and include two control conductors, control conductor for every and be extruded with respectively outward and carry out again after ethylene propylene rubber insulated layer insulating strandedly, be coated with successively from inside to outside lapping layer, glass fiber fireprotection layer after stranded; Power core includes a power conductor, and power conductor is coated with inner covering, silicone rubber insulation layer, fireproof mica layer from inside to outside successively; Cable core is coated with the oversheath of plastic-aluminum gear tide shielding synthetic layer, flat outward successively.

2. the fire-retardant flat cable of Novel welding machine according to claim 1, jacket material described in it is characterized in that is made up of the raw material of following weight portion: high density polyethylene (HDPE) 55-65, polypropylene 30-40, acrylonitrile-acrylate-styrene terpolymer 15-25, glyceryl tristearate 2.5-4.5, Dythal 2-3, zinc stearate 1-2, Octadecanoyl tributyl citrate 10-15, ammonium molybdate 5-10, two (diphenyl phosphoester) 7-14 of resorcinol, melamine coated ammonium polyphosphate 10-15, calcining loess 15-20, antioxidant 1035 1-2, ultra-violet absorber UV-9 1-2, modified mineral filler 10-15,

The preparation method of described modified mineral filler is as follows: a, take wollastonite, kaolin, pyrophillite, bauxite mix by weight 5-10:3-6:2-4:1, pulverize, cross 200-300 mesh sieve, 650-750 DEG C of calcining 20-30min, naturally cools to room temperature, b, the complex mineral filler of above-mentioned calcination processing is added water to pull an oar and make the suspension that concentration is 35-45%, the hydrochloric acid solution that is 15-20% by concentration regulates PH to 4-5, heating water bath is to 70-80 DEG C, 1500-2000rpm speed lapping 10-15min, then be neutralized to neutrality with the sodium hydroxide solution that concentration is 10-15%, leave standstill 20-30min, filter, distilled water washing 2-3 time for filter residue, after oven dry, add in mixer, under 500-1000rpm high-speed stirred, get the methoxy poly (ethylene glycol) monomethacrylates that is equivalent to complex mineral filler weight 3-5%, the Di(dioctylpyrophosphato) ethylene titanate of 0.5-1%, after mixing, the poly of 2-4% slowly adds in complex mineral filler with vaporific or droplet form, at 40-60 DEG C of temperature, stir 10-20min, dry, c, get and be equivalent to the haloflex of complex mineral filler weight 40-50%, the nylon 66 of 10-20%, the poly 1-butene of 5-10%, the N of 3-6%, after the complex mineral filler that the pulverized coal ash of N'-ethylenebisstearamide, 4-8% is processed with step b mixes, together drop into double screw extruder and carry out melt blending, then extruding pelletization, naturally cool to room temperature, be modification complex mineral filler.

3. the fire-retardant flat cable of Novel welding machine according to claim 2, the preparation method of the jacket material described in it is characterized in that, comprises the following steps:

(1) LLDPE, polyvinyl chloride, ethylene-tetrafluoroethylene copolymer are dropped in kneader and mixed, then add Octadecanoyl tributyl citrate, resorcinol two (diphenyl phosphoester) to stir a moment, after plasticizer is by basic absorption, add glyceryl tristearate, Dythal, zinc stearate, make material temperature be raised to 75-85 DEG C by frictional heat, add again remaining raw material, when material temperature rises to 100-120 DEG C, material is discharged in cooling mixing machine and is lowered the temperature, discharging to below 45-55 DEG C time;

(2) above-mentioned kneaded raw material is dropped into extruding pelletization in double screw extruder, screw speed 80-120r/min, processing temperature is 150-180 DEG C;

(3) pack after metering.