CN103498978B - High-pulse steel wire woven hydraulic rubber pipe and preparation method thereof - Google Patents
High-pulse steel wire woven hydraulic rubber pipe and preparation method thereof Download PDFInfo
- Publication number
- CN103498978B CN103498978B CN201310455471.7A CN201310455471A CN103498978B CN 103498978 B CN103498978 B CN 103498978B CN 201310455471 A CN201310455471 A CN 201310455471A CN 103498978 B CN103498978 B CN 103498978B
- Authority
- CN
- China
- Prior art keywords
- sebific duct
- agent
- steel wire
- interior
- raw material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/18—Pleated or corrugated hoses
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/32—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds containing phosphorus or sulfur
- C08L23/34—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds containing phosphorus or sulfur by chlorosulfonation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A kind of High-pulse steel wire woven hydraulic rubber pipe and preparation method thereof, hydralic hose comprises the mesoglea outside interior sebific duct, interior sebific duct and the outer glue-line outside mesoglea, and the interior glue of interior sebific duct is prepared from by the raw material with weight portion: Nitrile Rubber; Reinforcing agent carbon black, white carbon; Tenderer; Coumarone; Zine oxide; Stearic acid; Age resister, tackiness agent, promoter; Anti-coke agent; Vulcanizing system: sulphur, vulcanzing agent; The middle film of mesoglea is prepared from by the raw material with weight portion: Nitrile Rubber; Reinforcing agent; Iron oxide red; Tenderer; Zine oxide; Stearic acid, cobalt salt; Age resister; Tackiness agent; Promoter; Sulphur; The outer glue of outer glue-line is prepared from by the raw material with weight portion: Nitrile Rubber and chlorosulfonated polyethylene; Reinforcing agent: carbon black, white carbon; Calcium carbonate, tenderer, zine oxide, stearic acid, magnesium oxide, stabilizer, age resister, tackiness agent, promoter; Vulcanizing system: sulphur.Also disclose preparation method.This hydralic hose pulse compressive deformation is little, and pulse behaviors is stablized.
Description
Technical field
The present invention relates to a kind of wire braided hose, also relate to the preparation method of this sebific duct.
Background technique
Braided steel wire: the reinforcement of building along with social development national basis, some heavy industry enterprises constantly emerge, and some supporting enterprise demands to sebific duct constantly increase, and we develop
10 × 2 SN wire braided hoses after tested pulse reach 300,000 times, and the well-known manufacturing enterprise of domestic sebific duct only reaches about 100,000 times, does not reach the demand of client far away.The main cause that there is this problem is that sizing compound formula and framework layer design are unreasonable.
Summary of the invention
Object of the present invention is just that overcoming above-mentioned deficiency provides a kind of High-pulse steel wire woven hydraulic rubber pipe and preparation method thereof, wire braid hydraulic hose of the present invention is rational in infrastructure, pulse compressive deformation is little, sebific duct is lightweight, bending radius is little, and finished product properties all meets the requirement of DIN EN853 remarks, and pulse behaviors is stablized, and pulse number breaches 300,000 times, considerably increase the working life of sebific duct.
Object of the present invention realizes by following technological scheme:
A kind of High-pulse steel wire woven hydraulic rubber pipe, comprises the mesoglea outside interior sebific duct, interior sebific duct and the outer glue-line outside mesoglea,
The interior glue of interior sebific duct is prepared from by the raw material with weight portion:
Virgin rubber: Nitrile Rubber 80-100;
Reinforcing agent: carbon black 90-115, white carbon 10-13;
Small powder: tenderer: dioctyl phthalate 10-14; Coumarone 3 ~ 5; Zine oxide 3-6; Stearic acid 1-3; Age resister 2-4, tackiness agent 5-7, promoter 0.5-1.5; Anti-coke agent: 0.3-0.4;
Vulcanizing system: sulphur 1-3, vulcanzing agent 0.3-0.6;
The middle film of mesoglea is prepared from by the raw material with weight portion:
Virgin rubber: Nitrile Rubber 80-100;
Reinforcing agent: carbon black N660 30-50, white carbon 30-40;
Small powder: iron oxide red 8-12; Tenderer: dioctyl phthalate 20-30; Zine oxide 2-4; Stearic acid 1-2, cobalt salt 0.4-0.8; Age resister 6-8; Tackiness agent 6-7; Promoter 0.6-1;
Vulcanizing system: sulphur 2-3;
The outer glue of outer glue-line is prepared from by the raw material with weight portion:
Virgin rubber: Nitrile Rubber and chlorosulfonated polyethylene 80-100, wherein the mass ratio 7:2-4 of nitrile butadiene rubber and chlorosulfonated polyethylene;
Reinforcing agent: carbon black 60-70, white carbon 20-30;
Small powder: calcium carbonate 30-40, tenderer 40-60, zine oxide 2-4, stearic acid 0.5-1.5, magnesium oxide 5-7, stabilizer 1-2, age resister 2.5-4, tackiness agent 4-6, promoter 0.5-1;
Vulcanizing system: sulphur 1-3.
onstate High-pulse steel wire woven hydraulic rubber pipe,
The interior glue of interior sebific duct is prepared from by the raw material with weight portion: Nitrile Rubber 90, carbon black 100, white carbon 12, dioctyl phthalate 12, coumarone 4, zine oxide 4, stearic acid 2, age resister 3, sulphur 2, tackiness agent 6, promoter 1; Vulcanzing agent 0.4, anti-coke agent 0.3;
The middle film of mesoglea is prepared from by the raw material with weight portion: Nitrile Rubber 90, carbon black N66040, white carbon 35, iron oxide red 10, dioctyl phthalate 25, zine oxide 3, stearic acid 1.5, cobalt salt 0.6, age resister 7, sulphur 2.5, tackiness agent 6.5, promoter 0.8;
The outer glue of outer glue-line is prepared from by the raw material with weight portion: Nitrile Rubber or chlorosulfonated polyethylene 90, carbon black 65, white carbon 25, calcium carbonate 35, dioctyl phthalate 50, zine oxide 3, stearic acid 1, magnesium oxide 6, stabilizer 1.5, age resister 3, sulphur 2, tackiness agent 5, promoter 0.8.
onstate High-pulse steel wire woven hydraulic rubber pipe, in the interior glue material of the interior sebific duct of preparation, middle glue material and outer glue material, age resister is age resister 2,2,4-trimethyl-1, any one or two kinds of mixing in 2-dihyaroquinoline or N-isopropyl-4-aminodiphenylamine or N-PBNA, described tackiness agent is RC or RE, and described promoter is N cyclohexyl 2 benzothiazole sulfenamide; Described anti-coke agent is CTP; Described vulcanzing agent is DCP or DTDM, and stabilizer is FH-I.
onstate the preparation method of High-pulse steel wire woven hydraulic rubber pipe, interior sebific duct, mesoglea are identical with the preparation method of the material of outer glue-line, comprise the following steps:
A. each raw material is taken by weight, virgin rubber and small powder are first mixed, first banburying 3 ~ 5 minutes in banbury, again reinforcing agent and tenderer are added successively in batches, finally vulcanizing system is added and is uniformly mixed 1 ~ 2 minute, to be mixed mix after, on a mill until 2-3mm is transferred in roll spacing, make a call to 5 triangle bags 3 volume, bottom sheet cools;
B. manage in cold feeding extruder extrusion Ф 10mm with interior film, sebific duct in having extruded is woven 2 layers of steel wire on knitting machine, film in bag one deck between two-layer steel wire, again with the outer glue-line of extruder bag one deck on the sebific duct finished, finally by the sebific duct wrapped at sulfurizing pot vulcanization, conditions of vulcanization 151 DEG C/MPa × 60min, just obtained dense form wire braided hose.
The preparation method of above-mentioned High-pulse steel wire woven hydraulic rubber pipe, interior sebific duct thickness 2.2 ± 0.2mm that described step b is obtained, mesoglea is woven in film between steel wire on interior sebific duct and two-layer steel wire is formed by two-layer, mesoglea diameter 16.7 ± 0.2mm, braided pitch 33 ± 1mm, ingot × stock is 18 × 9, cryogenic temperature-30 DEG C, spindle tension force 6-7 kilogram, outer bondline thickness 1 ± 0.2mm, external diameter 18.5 ± 0.2mm, sebific duct compressive strength is 33Mpa, and knitting tightness one deck is 93.7 ℅, and two layers is 86.3 ℅, angle of weave one deck α 54.9, two layers of α 55.8.
Adopt technique scheme, the present invention has following advantage: interior glue plays the seal action under high-pressure medium effect, excellent oil resistance should be had, good endurance, resistance to pulse behaviors, higher stress at definite elongation and tear resistance, less stress relaxation, preferably technology capability and higher physical and mechanical properties.
Middle glue is laid in order to isolate adjacent framework material in two framework layers in sebific duct structure, with phase mutual friction under the repeated action avoiding and be buffered in pulsating pressure, improves the fatigue phenomenon of sebific duct, thus reaches the object increased the service life.Middle glue should have the characteristics such as good with framework layer adheres performance, good fluidity, technology capability are good.
Outer glue mainly plays protection framework layer and is not affected by the external environment, and causes comparatively fast aging.So must wear-resisting, ageing-resistant (ozone, hot air), adhesiveness is good, pliability is good, for this reason select rubber and plastic alloy be main.
properties of rubber
In wire braided hose, domestic and abroad sizing material detection perform is in table 1.
table 1 sizing material detection perform
。
The steel wire of enhancement layer adopts Bekaa 0.3mm Coppered Steel Wire, grade 2450N/mm
2, the combination property of steel wire is stablized, for sebific duct pulse behaviors provides safeguard.
end properties
Wire braided hose finished product detection performance is in table 2.
table 2 end properties test result
。
pulse behaviors detects
Sebific duct after sulfuration is cut into the sample of 480mm, the outer glue-line at sebific duct sample two ends (52 ~ 55) mm place is divested, then by the amount of the withholding discount of 1.5mm.Finally sample is carried out pulse test, test conditions: most high impulse pressure is 43.9Mpa, most high impulse pressure is 44.1Mpa, and frequency is 60 times/min, test temperature 100 DEG C, and bending radius is 130mm. pulse number is 300,000 times, is above standard 200,000 times
The wire braided hose that the present invention makes in sum has following advantage: rational in infrastructure, pulse compressive deformation is little, sebific duct is lightweight, bending radius is little, finished product properties all meets the requirement of DIN EN853 remarks, pulse behaviors is stablized, and pulse number breaches 300,000 times, considerably increases the working life of sebific duct.
Embodiment
Embodiment 1:
a kind ofthe preparation method of High-pulse steel wire woven hydraulic rubber pipe, comprises the following steps:
1. take each layer raw material by weight:
Prepare the raw material of inner glue layer:
Virgin rubber: Nitrile Rubber 80-100kg; Reinforcing agent: carbon black 90kg, white carbon 10kg; Small powder: tenderer: dioctyl phthalate 10kg; Coumarone 3kg; Zine oxide 3kg; Stearic acid 1kg; Age resister 2,2,4-trimethyl-1,2-dihyaroquinoline 2kg, tackiness agent RC 5kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.5kg; Anti-coke agent: 0.3kg; Vulcanizing system: sulphur 1kg, vulcanzing agent DCP0.3kg;
Prepare the raw material of mesoglea:
Virgin rubber: Nitrile Rubber 80kg; Reinforcing agent: carbon black N660:30kg, white carbon 30kg; Small powder: iron oxide red 8kg; Tenderer: dioctyl phthalate 20kg; Zine oxide 2kg; Stearic acid 1kg, cobalt salt 0.4kg; Age resister 2,2,4-trimethyl-1,2-dihyaroquinoline 6-8kg; Tackiness agent RC 6kg; Accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.6kg; Vulcanizing system: sulphur 2kg;
Prepare the raw material of outer glue-line:
Virgin rubber: Nitrile Rubber and chlorosulfonated polyethylene 80kg, wherein the mass ratio 7:2 of nitrile butadiene rubber and chlorosulfonated polyethylene; Reinforcing agent: carbon black 60kg, white carbon 20kg; Small powder: calcium carbonate 30kg, tenderer dioctyl phthalate 40kg, zine oxide 2kg, stearic acid 0.5kg, magnesium oxide 5kg, stabilizer FH-I1kg, age resister 2,2,4-trimethyl-1,2-dihyaroquinoline 2.5kg, tackiness agent RC4kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.5kg; Vulcanizing system: sulphur 1kg.
2. preparation method: interior sebific duct, mesoglea are identical with the preparation method of the material of outer glue-line, comprise the following steps:
A. each raw material is taken by weight, virgin rubber and small powder are first mixed, first banburying 3 ~ 5 minutes in banbury, again reinforcing agent and tenderer are added successively in batches, finally vulcanizing system is added and is uniformly mixed 1 ~ 2 minute, to be mixed mix after, on a mill until 2-3mm is transferred in roll spacing, make a call to 5 triangle bags 3 volume, bottom sheet cools;
B. manage in cold feeding extruder extrusion Ф 10mm with interior film, sebific duct in having extruded is woven 2 layers of steel wire on knitting machine, film in bag one deck between two-layer steel wire, again with the outer glue-line of extruder bag one deck on the sebific duct finished, finally by the sebific duct wrapped at sulfurizing pot vulcanization, conditions of vulcanization 151 DEG C/MPa × 60min, just obtained dense form wire braided hose.Obtained interior sebific duct thickness 2.2 ± 0.2mm, mesoglea is woven in film between steel wire on interior sebific duct and two-layer steel wire is formed by two-layer, mesoglea diameter 16.7 ± 0.2mm, braided pitch 33 ± 1mm, ingot × stock is 18 × 9, cryogenic temperature-30 DEG C, spindle tension force 6-7 kilogram, outer bondline thickness 1 ± 0.2mm, external diameter 18.5 ± 0.2mm, sebific duct compressive strength is 33Mpa, knitting tightness one deck is 93.7 ℅, two layers is 86.3 ℅, angle of weave one deck α 54.9, two layers of α 55.8.
Embodiment 2:
a kind ofthe preparation method of High-pulse steel wire woven hydraulic rubber pipe, comprises the following steps:
1. take each layer raw material by weight:
Prepare the raw material of inner glue layer:
Virgin rubber: Nitrile Rubber 80-100kg; Reinforcing agent: carbon black 91kg, white carbon 11kg; Small powder: tenderer: dioctyl phthalate 10.5kg; Coumarone 3 ~ 5kg; Zine oxide 3-6kg; Stearic acid 1.5kg; Age resister N-isopropyl-4-aminodiphenylamine 2.5kg, tackiness agent RE5kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.6kg; Anti-coke agent: 0.3kg; Vulcanizing system: sulphur 1kg, vulcanzing agent DTDM0.3kg;
Prepare the raw material of mesoglea:
Virgin rubber: Nitrile Rubber 81kg; Reinforcing agent: carbon black N660:31kg, white carbon 31kg; Small powder: iron oxide red 8kg; Tenderer: dioctyl phthalate 20kg; Zine oxide 2kg; Stearic acid 1kg, cobalt salt 0.4kg; Age resister N-isopropyl-4-aminodiphenylamine 6kg; Tackiness agent RE6kg; Accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.6kg; Vulcanizing system: sulphur 2kg;
Prepare the raw material of outer glue-line:
Virgin rubber: Nitrile Rubber and chlorosulfonated polyethylene 80-100kg, wherein the mass ratio 7:2 of nitrile butadiene rubber and chlorosulfonated polyethylene; Reinforcing agent: carbon black 60kg, white carbon 20kg; Small powder: calcium carbonate 30kg, tenderer dioctyl phthalate 40kg, zine oxide 2kg, stearic acid 0.5kg, magnesium oxide 5kg, stabilizer FH-I1kg, age resister N-isopropyl-4-aminodiphenylamine 2.5kg, tackiness agent RE4kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.5kg; Vulcanizing system: sulphur 1kg.
2. preparation method: interior sebific duct, mesoglea are identical with the preparation method of the material of outer glue-line, comprise the following steps:
A. each raw material is taken by weight, virgin rubber and small powder are first mixed, first banburying 3 ~ 5 minutes in banbury, again reinforcing agent and tenderer are added successively in batches, finally vulcanizing system is added and is uniformly mixed 1 ~ 2 minute, to be mixed mix after, on a mill until 2-3mm is transferred in roll spacing, make a call to 5 triangle bags 3 volume, bottom sheet cools;
B. manage in cold feeding extruder extrusion Ф 10mm with interior film, sebific duct in having extruded is woven 2 layers of steel wire on knitting machine, film in bag one deck between two-layer steel wire, again with the outer glue-line of extruder bag one deck on the sebific duct finished, finally by the sebific duct wrapped at sulfurizing pot vulcanization, conditions of vulcanization 151 DEG C/MPa × 60min, just obtained dense form wire braided hose.Obtained interior sebific duct thickness 2.2 ± 0.2mm, mesoglea is woven in film between steel wire on interior sebific duct and two-layer steel wire is formed by two-layer, mesoglea diameter 16.7 ± 0.2mm, braided pitch 33 ± 1mm, ingot × stock is 18 × 9, cryogenic temperature-30 DEG C, spindle tension force 6-7 kilogram, outer bondline thickness 1 ± 0.2mm, external diameter 18.5 ± 0.2mm, sebific duct compressive strength is 33Mpa, knitting tightness one deck is 93.7 ℅, two layers is 86.3 ℅, angle of weave one deck α 54.9, two layers of α 55.8.
Embodiment 3:
a kind ofthe preparation method of High-pulse steel wire woven hydraulic rubber pipe, comprises the following steps:
1. take each layer raw material by weight:
Prepare the raw material of inner glue layer:
Virgin rubber: Nitrile Rubber 80-100kg; Reinforcing agent: carbon black 92kg, white carbon 11kg; Small powder: tenderer: dioctyl phthalate 10kg; Coumarone 3kg; Zine oxide 3kg; Stearic acid 1kg; Age resister N-PBNA 2kg, tackiness agent RC 5kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.5kg; Anti-coke agent: 0.3kg; Vulcanizing system: sulphur 1kg, vulcanzing agent DCP 0.3kg;
Prepare the raw material of mesoglea:
Virgin rubber: Nitrile Rubber 81kg; Reinforcing agent: carbon black N660:31kg, white carbon 30kg; Small powder: iron oxide red 8kg; Tenderer: dioctyl phthalate 20kg; Zine oxide 2kg; Stearic acid 1kg, cobalt salt 0.4kg; Age resister N-PBNA 6kg; Tackiness agent RE6kg; Accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.6kg; Vulcanizing system: sulphur 2kg;
Prepare the raw material of outer glue-line:
Virgin rubber: Nitrile Rubber and chlorosulfonated polyethylene 81kg, wherein the mass ratio 7:2.5 of nitrile butadiene rubber and chlorosulfonated polyethylene; Reinforcing agent: carbon black 61kg, white carbon 20kg; Small powder: calcium carbonate 30kg, tenderer dioctyl phthalate 40kg, zine oxide 2-4kg, stearic acid 0.5kg, magnesium oxide 5kg, stabilizer FH-I1kg, age resister N-PBNA 2.5kg, tackiness agent RC4kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.5kg; Vulcanizing system: sulphur 1kg.
2. preparation method: interior sebific duct, mesoglea are identical with the preparation method of the material of outer glue-line, comprise the following steps:
A. each raw material is taken by weight, virgin rubber and small powder are first mixed, first banburying 3 ~ 5 minutes in banbury, again reinforcing agent and tenderer are added successively in batches, finally vulcanizing system is added and is uniformly mixed 1 ~ 2 minute, to be mixed mix after, on a mill until 2-3mm is transferred in roll spacing, make a call to 5 triangle bags 3 volume, bottom sheet cools;
B. manage in cold feeding extruder extrusion Ф 10mm with interior film, sebific duct in having extruded is woven 2 layers of steel wire on knitting machine, film in bag one deck between two-layer steel wire, again with the outer glue-line of extruder bag one deck on the sebific duct finished, finally by the sebific duct wrapped at sulfurizing pot vulcanization, conditions of vulcanization 151 DEG C/MPa × 60min, just obtained dense form wire braided hose.Obtained interior sebific duct thickness 2.2 ± 0.2mm, mesoglea is woven in film between steel wire on interior sebific duct and two-layer steel wire is formed by two-layer, mesoglea diameter 16.7 ± 0.2mm, braided pitch 33 ± 1mm, ingot × stock is 18 × 9, cryogenic temperature-30 DEG C, spindle tension force 6-7 kilogram, outer bondline thickness 1 ± 0.2mm, external diameter 18.5 ± 0.2mm, sebific duct compressive strength is 33Mpa, knitting tightness one deck is 93.7 ℅, two layers is 86.3 ℅, angle of weave one deck α 54.9, two layers of α 55.8.
Embodiment 4:
a kind ofthe preparation method of High-pulse steel wire woven hydraulic rubber pipe, comprises the following steps:
Take each layer raw material by weight:
Prepare the raw material of inner glue layer:
Virgin rubber: Nitrile Rubber 90kg; Reinforcing agent: carbon black 100kg, white carbon 12kg; Small powder: tenderer: dioctyl phthalate 12kg; Coumarone 4kg; Zine oxide 4kg; Stearic acid 2kg; Age resister 2,2,4-trimethyl-1,2-dihyaroquinoline 4kg, tackiness agent RC6kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 1kg; Anti-coke agent: 0.3kg; Vulcanizing system: sulphur 2kg, vulcanzing agent DCP0.4kg;
Virgin rubber: Nitrile Rubber 90kg; Reinforcing agent: carbon black N660:40kg, white carbon 35kg; Small powder: iron oxide red 10kg; Tenderer: dioctyl phthalate 25kg; Zine oxide 3kg; Stearic acid 1.5kg, cobalt salt 0.6kg; Age resister 2,2,4-trimethyl-1,2-dihyaroquinoline 7kg; Tackiness agent RC 6.5kg; Accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.8kg; Vulcanizing system: sulphur 2.5kg;
Prepare the raw material of outer glue-line: the outer glue of outer glue-line is prepared from by the raw material with weight portion: Nitrile Rubber or chlorosulfonated polyethylene 90, carbon black 65, white carbon 25, calcium carbonate 35, dioctyl phthalate 50, zine oxide 3, stearic acid 1, magnesium oxide 6, stabilizer 1.5, age resister 3, sulphur 2, tackiness agent 5, promoter 0.8.
Virgin rubber: Nitrile Rubber and chlorosulfonated polyethylene 90kg, wherein the mass ratio 7:3 of nitrile butadiene rubber and chlorosulfonated polyethylene; Reinforcing agent: carbon black 65kg, white carbon 25kg; Small powder: calcium carbonate 35kg, tenderer dioctyl phthalate 50kg, zine oxide 3kg, stearic acid 1kg, magnesium oxide 6kg, stabilizer FH-I1.5kg, age resister 2,2,4-trimethyl-1,2-dihyaroquinoline 3kg, tackiness agent RC5kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.8kg; Vulcanizing system: sulphur 2kg.
2. preparation method: interior sebific duct, mesoglea are identical with the preparation method of the material of outer glue-line, comprise the following steps:
A. each raw material is taken by weight, virgin rubber and small powder are first mixed, first banburying 3 ~ 5 minutes in banbury, again reinforcing agent and tenderer are added successively in batches, finally vulcanizing system is added and is uniformly mixed 1 ~ 2 minute, to be mixed mix after, on a mill until 2-3mm is transferred in roll spacing, make a call to 5 triangle bags 3 volume, bottom sheet cools;
B. manage in cold feeding extruder extrusion Ф 10mm with interior film, sebific duct in having extruded is woven 2 layers of steel wire on knitting machine, film in bag one deck between two-layer steel wire, again with the outer glue-line of extruder bag one deck on the sebific duct finished, finally by the sebific duct wrapped at sulfurizing pot vulcanization, conditions of vulcanization 151 DEG C/MPa × 60min, just obtained dense form wire braided hose.Obtained interior sebific duct thickness 2.2 ± 0.2mm, mesoglea is woven in film between steel wire on interior sebific duct and two-layer steel wire is formed by two-layer, mesoglea diameter 16.7 ± 0.2mm, braided pitch 33 ± 1mm, ingot × stock is 18 × 9, cryogenic temperature-30 DEG C, spindle tension force 6-7 kilogram, outer bondline thickness 1 ± 0.2mm, external diameter 18.5 ± 0.2mm, sebific duct compressive strength is 33Mpa, knitting tightness one deck is 93.7 ℅, two layers is 86.3 ℅, angle of weave one deck α 54.9, two layers of α 55.8.
Embodiment 5:
a kind ofthe preparation method of High-pulse steel wire woven hydraulic rubber pipe, comprises the following steps:
1. take each layer raw material by weight:
Prepare the raw material of inner glue layer:
Virgin rubber: Nitrile Rubber 90kg; Reinforcing agent: carbon black 100kg, white carbon 12kg; Small powder: tenderer: dioctyl phthalate 12kg; Coumarone 4kg; Zine oxide 4kg; Stearic acid 2kg; Age resister N-isopropyl-4-aminodiphenylamine 3kg, tackiness agent RE6g, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 1g; Anti-coke agent: 0.3 vulcanizing system: sulphur 2g, vulcanzing agent DTDM0.4;
Prepare the raw material of mesoglea:
Virgin rubber: Nitrile Rubber 90kg; Reinforcing agent: carbon black N660:40kg, white carbon 35kg; Small powder: iron oxide red 10kg; Tenderer: dioctyl phthalate 25kg; Zine oxide 3kg; Stearic acid 1.5kg, cobalt salt 0.6kg; Age resister N-isopropyl-4-aminodiphenylamine 7kg; Tackiness agent RC6.5kg; Accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.8kg; Vulcanizing system: sulphur 2.5kg;
Prepare the raw material of outer glue-line:
Virgin rubber: Nitrile Rubber and chlorosulfonated polyethylene 90kg, wherein the mass ratio 7:3.5 of nitrile butadiene rubber and chlorosulfonated polyethylene; Reinforcing agent: carbon black 65kg, white carbon 25kg; Small powder: calcium carbonate 35kg, tenderer dioctyl phthalate 50kg, zine oxide 3kg, stearic acid 1kg, magnesium oxide 6kg, stabilizer FH-I1.5kg, age resister N-isopropyl-4-aminodiphenylamine 3kg, tackiness agent RE5kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.8kg; Vulcanizing system: sulphur 2kg.
2. preparation method: interior sebific duct, mesoglea are identical with the preparation method of the material of outer glue-line, comprise the following steps:
A. each raw material is taken by weight, virgin rubber and small powder are first mixed, first banburying 3 ~ 5 minutes in banbury, again reinforcing agent and tenderer are added successively in batches, finally vulcanizing system is added and is uniformly mixed 1 ~ 2 minute, to be mixed mix after, on a mill until 2-3mm is transferred in roll spacing, make a call to 5 triangle bags 3 volume, bottom sheet cools;
B. manage in cold feeding extruder extrusion Ф 10mm with interior film, sebific duct in having extruded is woven 2 layers of steel wire on knitting machine, film in bag one deck between two-layer steel wire, again with the outer glue-line of extruder bag one deck on the sebific duct finished, finally by the sebific duct wrapped at sulfurizing pot vulcanization, conditions of vulcanization 151 DEG C/MPa × 60min, just obtained dense form wire braided hose.Obtained interior sebific duct thickness 2.2 ± 0.2mm, mesoglea is woven in film between steel wire on interior sebific duct and two-layer steel wire is formed by two-layer, mesoglea diameter 16.7 ± 0.2mm, braided pitch 33 ± 1mm, ingot × stock is 18 × 9, cryogenic temperature-30 DEG C, spindle tension force 6-7 kilogram, outer bondline thickness 1 ± 0.2mm, external diameter 18.5 ± 0.2mm, sebific duct compressive strength is 33Mpa, knitting tightness one deck is 93.7 ℅, two layers is 86.3 ℅, angle of weave one deck α 54.9, two layers of α 55.8.
Embodiment 6:
a kind ofthe preparation method of High-pulse steel wire woven hydraulic rubber pipe, comprises the following steps:
1. take each layer raw material by weight:
Prepare the raw material of inner glue layer:
Virgin rubber: Nitrile Rubber 90kg; Reinforcing agent: carbon black 100kg, white carbon 12kg; Small powder: tenderer: dioctyl phthalate 12kg; Coumarone 4kg; Zine oxide 4kg; Stearic acid 2kg; Age resister N-PBNA 3kg, tackiness agent RC 6kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 1kg; Anti-coke agent: 0.3kg; Vulcanizing system: sulphur 2kg, vulcanzing agent DCP 0.4kg;
Prepare the raw material of mesoglea:
Virgin rubber: Nitrile Rubber 90kg; Reinforcing agent: carbon black N660:40kg, white carbon 35kg; Small powder: iron oxide red 10kg; Tenderer: dioctyl phthalate 25kg; Zine oxide 3kg; Stearic acid 1.5kg, cobalt salt 0.6kg; Age resister N-PBNA 7kg; Tackiness agent RE6.5kg; Accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.8kg; Vulcanizing system: sulphur 2.5kg;
Prepare the raw material of outer glue-line:
Virgin rubber: Nitrile Rubber and chlorosulfonated polyethylene 90kg, wherein the mass ratio 7:3.2 of nitrile butadiene rubber and chlorosulfonated polyethylene; Reinforcing agent: carbon black 65kg, white carbon 25kg; Small powder: calcium carbonate 35kg, tenderer dioctyl phthalate 50kg, zine oxide 3kg, stearic acid 1kg, magnesium oxide 6kg, stabilizer FH-I1.5kg, age resister N-PBNA 3kg, tackiness agent RC5kg, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 0.8kg; Vulcanizing system: sulphur 2kg.
2. preparation method: interior sebific duct, mesoglea are identical with the preparation method of the material of outer glue-line, comprise the following steps:
A. each raw material is taken by weight, virgin rubber and small powder are first mixed, first banburying 3 ~ 5 minutes in banbury, again reinforcing agent and tenderer are added successively in batches, finally vulcanizing system is added and is uniformly mixed 1 ~ 2 minute, to be mixed mix after, on a mill until 2-3mm is transferred in roll spacing, make a call to 5 triangle bags 3 volume, bottom sheet cools;
B. manage in cold feeding extruder extrusion Ф 10mm with interior film, sebific duct in having extruded is woven 2 layers of steel wire on knitting machine, film in bag one deck between two-layer steel wire, again with the outer glue-line of extruder bag one deck on the sebific duct finished, finally by the sebific duct wrapped at sulfurizing pot vulcanization, conditions of vulcanization 151 DEG C/MPa × 60min, just obtained dense form wire braided hose.Obtained interior sebific duct thickness 2.2 ± 0.2mm, mesoglea is woven in film between steel wire on interior sebific duct and two-layer steel wire is formed by two-layer, mesoglea diameter 16.7 ± 0.2mm, braided pitch 33 ± 1mm, ingot × stock is 18 × 9, cryogenic temperature-30 DEG C, spindle tension force 6-7 kilogram, outer bondline thickness 1 ± 0.2mm, external diameter 18.5 ± 0.2mm, sebific duct compressive strength is 33Mpa, knitting tightness one deck is 93.7 ℅, two layers is 86.3 ℅, angle of weave one deck α 54.9, two layers of α 55.8.
The trade name of each raw material in above-described embodiment, model and supplier, performance information are as following table 3:
Table 3:
。
Anti-scorching agent CTP (PVI), molecular formula: C14H15O2NS
molecular weight: 261.34.
Vulcanzing agent DCP: be cumyl peroxide (DCP) molecular structural formula
.
Vulcanzing agent DTDM, Chinese 4,4`-dimorpholinyl disulfide; Structure or molecular formula C8H16N2O2S2, relative molecular weight or atomic weight 236.36.
Claims (5)
1. a High-pulse steel wire woven hydraulic rubber pipe, comprises the mesoglea outside interior sebific duct, interior sebific duct and the outer glue-line outside mesoglea, it is characterized in that:
The interior glue of interior sebific duct is prepared from by the raw material with weight portion:
Virgin rubber: Nitrile Rubber 80-100;
Reinforcing agent: carbon black 90-115, white carbon 10-13;
Small powder: tenderer: dioctyl phthalate 10-14; Coumarone 3 ~ 5; Zine oxide 3-6; Stearic acid 1-3; Age resister 2-4, tackiness agent 5-7, promoter 0.5-1.5; Anti-coke agent: 0.3-0.4;
Vulcanizing system: sulphur 1-3, vulcanzing agent 0.3-0.6;
The middle film of mesoglea is prepared from by the raw material with weight portion:
Virgin rubber: Nitrile Rubber 80-100;
Reinforcing agent: carbon black N660 30-50, white carbon 30-40;
Small powder: iron oxide red 8-12; Tenderer: dioctyl phthalate 20-30; Zine oxide 2-4; Stearic acid 1-2, cobalt salt 0.4-0.8; Age resister 6-8; Tackiness agent 6-7; Promoter 0.6-1;
Vulcanizing system: sulphur 2-3;
The outer glue of outer glue-line is prepared from by the raw material with weight portion:
Virgin rubber: Nitrile Rubber and chlorosulfonated polyethylene 80-100, wherein the mass ratio 7:2-4 of nitrile butadiene rubber and chlorosulfonated polyethylene;
Reinforcing agent: carbon black 60-70, white carbon 20-30;
Small powder: calcium carbonate 30-40, tenderer 40-60, zine oxide 2-4, stearic acid 0.5-1.5, magnesium oxide 5-7, stabilizer 1-2, age resister 2.5-4, tackiness agent 4-6, promoter 0.5-1;
Vulcanizing system: sulphur 1-3.
2. High-pulse steel wire woven hydraulic rubber pipe according to claim 1, is characterized in that:
The interior glue of interior sebific duct is prepared from by the raw material with weight portion: Nitrile Rubber 90, carbon black 100, white carbon 12, dioctyl phthalate 12, coumarone 4, zine oxide 4, stearic acid 2, age resister 3, sulphur 2, tackiness agent 6, promoter 1; Vulcanzing agent 0.4, anti-coke agent 0.3;
The middle film of mesoglea is prepared from by the raw material with weight portion: Nitrile Rubber 90, carbon black N66040, white carbon 35, iron oxide red 10, dioctyl phthalate 25, zine oxide 3, stearic acid 1.5, cobalt salt 0.6, age resister 7, sulphur 2.5, tackiness agent 6.5, promoter 0.8;
The outer glue of outer glue-line is prepared from by the raw material with weight portion: Nitrile Rubber and chlorosulfonated polyethylene 90, carbon black 65, white carbon 25, calcium carbonate 35, dioctyl phthalate 50, zine oxide 3, stearic acid 1, magnesium oxide 6, stabilizer 1.5, age resister 3, sulphur 2, tackiness agent 5, promoter 0.8.
3. High-pulse steel wire woven hydraulic rubber pipe according to claim 1 and 2, it is characterized in that: in the interior glue material of the interior sebific duct of preparation, middle glue material and outer glue material, age resister is age resister 2,2,4-trimethyl-1, any one or two kinds of mixing in 2-dihyaroquinoline or N-isopropyl-4-aminodiphenylamine or N-PBNA, described tackiness agent is RC or RE, and described promoter is N cyclohexyl 2 benzothiazole sulfenamide; Described anti-coke agent is CTP; Described vulcanzing agent is DCP or DTDM, and stabilizer is FH-I.
4. the preparation method of High-pulse steel wire woven hydraulic rubber pipe according to claim 1, is characterized in that: interior sebific duct, mesoglea are identical with the preparation method of the material of outer glue-line, comprise the following steps:
A. each raw material is taken by weight, virgin rubber and small powder are first mixed, first banburying 3 ~ 5 minutes in banbury, again reinforcing agent and tenderer are added successively in batches, finally vulcanizing system is added and is uniformly mixed 1 ~ 2 minute, to be mixed mix after, on a mill until 2-3mm is transferred in roll spacing, make a call to 5 triangle bags 3 volume, bottom sheet cools;
B. manage in cold feeding extruder extrusion Ф 10mm with interior film, sebific duct in having extruded is woven 2 layers of steel wire on knitting machine, film in bag one deck between two-layer steel wire, again with the outer glue-line of extruder bag one deck on the sebific duct finished, finally by the sebific duct wrapped at sulfurizing pot vulcanization, conditions of vulcanization 151 DEG C/MPa × 60min, just obtained dense form wire braided hose.
5. the preparation method of High-pulse steel wire woven hydraulic rubber pipe according to claim 4, it is characterized in that: interior sebific duct thickness 2.2 ± 0.2mm that described step b is obtained, mesoglea is woven in film between steel wire on interior sebific duct and two-layer steel wire is formed by two-layer, mesoglea diameter 16.7 ± 0.2mm, braided pitch 33 ± 1mm, ingot × stock is 18 × 9, cryogenic temperature-30 DEG C, spindle tension force 6-7 kilogram, outer bondline thickness 1 ± 0.2mm, external diameter 18.5 ± 0.2mm, sebific duct compressive strength is 33Mpa, knitting tightness one deck is 93.7 ℅, two layers is 86.3 ℅, angle of weave one deck α 54.9, two layers of α 55.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455471.7A CN103498978B (en) | 2013-09-30 | 2013-09-30 | High-pulse steel wire woven hydraulic rubber pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455471.7A CN103498978B (en) | 2013-09-30 | 2013-09-30 | High-pulse steel wire woven hydraulic rubber pipe and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103498978A CN103498978A (en) | 2014-01-08 |
| CN103498978B true CN103498978B (en) | 2015-10-21 |
Family
ID=49864214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310455471.7A Active CN103498978B (en) | 2013-09-30 | 2013-09-30 | High-pulse steel wire woven hydraulic rubber pipe and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103498978B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151705A (en) * | 2016-08-31 | 2016-11-23 | 漯河利通液压科技股份有限公司 | A kind of high pressure high impulse braided steel wire pipe |
| CN109354732A (en) * | 2018-09-29 | 2019-02-19 | 芜湖集拓橡胶技术有限公司 | A kind of nitrile rubber high-pressure rubber pipe |
| CN111704754A (en) * | 2019-03-18 | 2020-09-25 | 平顶山市矿益胶管制品股份有限公司 | Formula and production method of medium rubber for rubber pipe |
| CN109897242A (en) * | 2019-03-21 | 2019-06-18 | 杨春生 | A kind of oil resistant flame-retardant rubber pipe and preparation method thereof |
| CN110206943A (en) * | 2019-04-28 | 2019-09-06 | 五行科技股份有限公司 | A kind of hose and its manufacturing method |
| CN111533968A (en) * | 2019-12-31 | 2020-08-14 | 刘柄签 | High-pulse-resistance steel wire woven rubber hose for engineering machinery |
| CN112521670A (en) * | 2020-12-01 | 2021-03-19 | 上海欧堪电子科技有限公司 | Rubber tube for mesh screen-shaped mixing unit and preparation process thereof |
| CN115785543B (en) * | 2021-05-10 | 2024-01-26 | 宁波舜龙胶管有限公司 | Rubber outer layer rubber of steel wire braided high-pressure rubber tube, preparation method and application thereof, steel wire braided high-pressure rubber tube and preparation method thereof |
| CN115322461B (en) * | 2022-07-21 | 2023-08-08 | 青岛橡六胶管有限公司 | Rubber tube suitable for hydraulic transmission under mine and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2290278A2 (en) * | 2009-08-25 | 2011-03-02 | Schieffer Co. International L.C. | Hybrid high pressure hose |
| CN102734571A (en) * | 2012-07-02 | 2012-10-17 | 漯河市利通橡胶有限公司 | Compact steel wire braided rubber hose and preparation method thereof |
| CN102865420A (en) * | 2012-09-28 | 2013-01-09 | 四川景渤石油机械有限公司 | Corrosion-resistant high-pressure hose and production method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1087888A (en) * | 1996-09-12 | 1998-04-07 | Yokohama Rubber Co Ltd:The | Rubber composition |
-
2013
- 2013-09-30 CN CN201310455471.7A patent/CN103498978B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2290278A2 (en) * | 2009-08-25 | 2011-03-02 | Schieffer Co. International L.C. | Hybrid high pressure hose |
| CN102734571A (en) * | 2012-07-02 | 2012-10-17 | 漯河市利通橡胶有限公司 | Compact steel wire braided rubber hose and preparation method thereof |
| CN102865420A (en) * | 2012-09-28 | 2013-01-09 | 四川景渤石油机械有限公司 | Corrosion-resistant high-pressure hose and production method thereof |
Non-Patent Citations (1)
| Title |
|---|
| "脉冲30万次SAE R17系列钢丝编织胶管的研制";赵付会;《橡胶工业》;20130625;第60卷(第6期);正文全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103498978A (en) | 2014-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103498978B (en) | High-pulse steel wire woven hydraulic rubber pipe and preparation method thereof | |
| CN102734571B (en) | Compact steel wire braided rubber hose and preparation method thereof | |
| CN108662307B (en) | High-strength anti-aging anti-high-pulse flame-retardant hydraulic rubber tube and preparation method thereof | |
| CN102040782B (en) | Power-steering high-pressure hose and production process thereof | |
| CN107990059A (en) | A kind of wire braided hose | |
| CN102865420B (en) | Corrosion-resistant high-pressure hose and production method thereof | |
| EP3001084B1 (en) | Rubber composition for hoses, and hose | |
| CN101000119A (en) | High-fatigue-resistance hydraulic brake hose and production method thereof | |
| CN108561504B (en) | Synchronous belt material formed by 3D printing and preparation method thereof | |
| KR20130069649A (en) | High-permeability elastic multistrand metal cable | |
| CN102095029A (en) | Production process of composite reinforcing building rubber pipe | |
| CN103057238A (en) | Production method for sealing gasket | |
| CN111810735B (en) | Steel wire braided rubber hose with excellent pulse resistance for engineering machinery | |
| CN103881248B (en) | A kind of chlorinated polyethylene rubber composition | |
| CN110359421B (en) | Long-life high-pressure water shutoff rubber air bag and production process | |
| CN107652683A (en) | A kind of non-asbestos seal gasket | |
| CN103062526A (en) | High-pressure hydraulic oil pipe and production method thereof | |
| CN103073872A (en) | Chlorohydrin rubber composition and fuel oil rubber tube | |
| CN103059354A (en) | Sealing gasket | |
| CN103742731A (en) | Ultrahigh-pressure polyethylene tube material and manufacturing method | |
| CN1285851C (en) | Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof | |
| CN105443885B (en) | Natural gas hose material using assorted fibre as skeleton | |
| CN104961935A (en) | Production method of high-performance outer rubber pipe for hydraulic oil pipe | |
| US12109777B1 (en) | Acid fracturing hose and preparation method thereof | |
| CN110001094A (en) | A kind of preparation method manufacturing high heat transfer, pressure resistance, endurance oil pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 462000 Private Industrial Park, Luohe Economic Development Zone, Henan Applicant after: Luohe Letone-Flex Technology Co., Ltd. Address before: 462300 Private Industrial Park, Luohe Economic Development Zone, Henan Applicant before: Luohe Letone Rubber Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: LUOHE LETONE RUBBER CO., LTD. TO: LUOHE LETONE-FLEX TECHNOLOGY CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |