CN113583314A - Industrial turnout rubber base plate used under railway turnout and preparation method and application thereof - Google Patents
Industrial turnout rubber base plate used under railway turnout and preparation method and application thereof Download PDFInfo
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- CN113583314A CN113583314A CN202110927953.2A CN202110927953A CN113583314A CN 113583314 A CN113583314 A CN 113583314A CN 202110927953 A CN202110927953 A CN 202110927953A CN 113583314 A CN113583314 A CN 113583314A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 135
- 239000005060 rubber Substances 0.000 title claims abstract description 135
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 70
- 239000000047 product Substances 0.000 claims abstract description 64
- 238000002156 mixing Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000011265 semifinished product Substances 0.000 claims abstract description 13
- 238000009966 trimming Methods 0.000 claims abstract description 10
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- 238000004898 kneading Methods 0.000 claims abstract description 7
- 238000004073 vulcanization Methods 0.000 claims abstract description 7
- 241001669679 Eleotris Species 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 72
- 238000007689 inspection Methods 0.000 claims description 42
- 239000003795 chemical substances by application Substances 0.000 claims description 37
- 230000003712 anti-aging effect Effects 0.000 claims description 23
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 14
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 14
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- 238000003860 storage Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 10
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 8
- 239000012744 reinforcing agent Substances 0.000 claims description 8
- 235000021355 Stearic acid Nutrition 0.000 claims description 7
- 230000007547 defect Effects 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 7
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- 238000005303 weighing Methods 0.000 claims description 6
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- 150000001875 compounds Chemical class 0.000 claims description 5
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 5
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
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- PIBIAJQNHWMGTD-UHFFFAOYSA-N 1-n,3-n-bis(4-methylphenyl)benzene-1,3-diamine Chemical compound C1=CC(C)=CC=C1NC1=CC=CC(NC=2C=CC(C)=CC=2)=C1 PIBIAJQNHWMGTD-UHFFFAOYSA-N 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
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- 241001330002 Bambuseae Species 0.000 claims description 3
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- WITDFSFZHZYQHB-UHFFFAOYSA-N dibenzylcarbamothioylsulfanyl n,n-dibenzylcarbamodithioate Chemical compound C=1C=CC=CC=1CN(CC=1C=CC=CC=1)C(=S)SSC(=S)N(CC=1C=CC=CC=1)CC1=CC=CC=C1 WITDFSFZHZYQHB-UHFFFAOYSA-N 0.000 claims description 2
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- MHKLKWCYGIBEQF-UHFFFAOYSA-N 4-(1,3-benzothiazol-2-ylsulfanyl)morpholine Chemical compound C1COCCN1SC1=NC2=CC=CC=C2S1 MHKLKWCYGIBEQF-UHFFFAOYSA-N 0.000 claims 1
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- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
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- ZNRLMGFXSPUZNR-UHFFFAOYSA-N 2,2,4-trimethyl-1h-quinoline Chemical compound C1=CC=C2C(C)=CC(C)(C)NC2=C1 ZNRLMGFXSPUZNR-UHFFFAOYSA-N 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 2
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 2
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- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 1
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
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- LRCFXGAMWKDGLA-UHFFFAOYSA-N dioxosilane;hydrate Chemical compound O.O=[Si]=O LRCFXGAMWKDGLA-UHFFFAOYSA-N 0.000 description 1
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- STSDHUBQQWBRBH-UHFFFAOYSA-N n-cyclohexyl-1,3-benzothiazole-2-sulfonamide Chemical compound N=1C2=CC=CC=C2SC=1S(=O)(=O)NC1CCCCC1 STSDHUBQQWBRBH-UHFFFAOYSA-N 0.000 description 1
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
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- 238000009864 tensile test Methods 0.000 description 1
- NBXZNTLFQLUFES-UHFFFAOYSA-N triethoxy(propyl)silane Chemical compound CCC[Si](OCC)(OCC)OCC NBXZNTLFQLUFES-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
- B29B7/56—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set
- B29B7/568—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set with consecutive sets of rollers or a train of rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/62—Rollers, e.g. with grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a railway turnout lower industrial turnout rubber base plate and a preparation method and application thereof, and the method comprises the following steps: s1, preparing raw materials; s2; preparing a mixing process; s3, checking the semi-finished rubber material; s4, vulcanizing process; s5, trimming; s6, detecting a finished product; and S7, packaging and transporting. The invention provides the industrial turnout rubber tie plate for the railway turnout and the preparation method and the application thereof, the raw materials required by the rubber tie plate for the railway concrete sleeper in China are prepared in a 4+8 powder automatic batching system, a kneading machine and an open mill are adopted for mixing to prepare a semi-finished product, the semi-finished product is prepared and molded by a high-precision automatic rapid vacuum front top hot press molding machine vulcanization process and rubber tie plate molds of different specifications, a set of complete system is formed, the industrial turnout rubber tie plate for the railway turnout has stable physical performance index, strong weather resistance and long service life, and the turnout product produced by matching can meet the actual requirements of site on laying stability and safety on a line.
Description
Technical Field
The invention relates to the technical field of rubber manufacturing, in particular to an industrial turnout rubber base plate for a railway turnout and a preparation method and application thereof.
Background
With the rapid development of rail transit, a large number of rail transit vibration-damping and noise-reducing schemes are applied to urban rail transit, wherein the most widely applied technical scheme is to arrange a rubber base plate between a steel rail and a concrete sleeper for buffering high-speed vibration and impact generated when a vehicle passes through the rail, so that a roadbed and the sleeper are protected.
At present, rubber tie plate products used under railway concrete sleeper rails in China are basically vulcanized by a vulcanizing machine, and as turnout specifications are more, GLC rubber tie plate products are various in specification and model, and lack of regular and effective preparation procedures and operation flows, the phenomenon that the whole set of turnout cannot be matched is often caused, and normal whole-road passenger special line transportation is influenced. Therefore, the invention provides an improved industrial turnout rubber base plate for the railway turnout and a preparation method and application thereof.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a railway turnout rubber base plate used under a railway turnout and a preparation method and application thereof, and the method comprises the following steps:
s1, preparing raw materials; s2; preparing a mixing process; s3, checking the semi-finished rubber material; s4, vulcanizing process; s5, trimming; s6, detecting a finished product; s7, packaging and transporting;
the raw materials are divided into small materials and big materials:
and (3) large material:
styrene-butadiene rubber 1500E 100 parts
75-85 parts of reinforcing agent
13 to 18 portions of wear-resistant agent
Small materials:
3-4 parts of vulcanizing agent
2-3 parts of accelerator
4-5 parts of anti-aging agent
1-2 parts of coupling agent
1-2 parts of stearic acid
1 part of a scorch retarder;
wherein the reinforcing agent is selected from one or more of MT (MC) novel carbon black, 774 carbon black, white carbon black (precipitated hydrated silica), natural gas semi-reinforcing carbon black and fly ash type rubber reinforcing agent (XRF);
the vulcanizing agent is selected from one or more of solid sulfur, zinc oxide (zinc concentrate) and ZnO (relative molecular weight 81.38);
the accelerator is selected from one or more of accelerator H, accelerator D, accelerator DM (MBTS; 2, 2' -dithiodibenzothiazole), accelerator TMTD, accelerator M (2-mercaptobenzothiazole), accelerator NOBS (N-oxydiethylene-2-benzothiazole sulfonamide), accelerator CZ (N-cyclohexyl-2-benzothiazole sulfonamide), accelerator TBzTD and accelerator CBS;
the anti-aging agent is selected from one or more of anti-aging agent PAN (N-phenyl-1-naphthylamine), anti-aging agent TMQ (2,2, 4-trimethyl-1, 2-dihydroquinoline polymer), anti-aging agent 4010NA (N-isopropyl-N' -cyclyl p-phenylenediamine), anti-aging agent DTPD (3100) and anti-aging agent D (N-phenyl-beta-naphthylamine);
the coupling agent is a mixture silane coupling agent of HP-669C (sulfur-containing silane coupling agent) bis- [ propyltriethoxysilane) -tetrasulfide and N-330 carbon black;
the stearic acid is divided into one or more of 1480 type, 1850 type and 1865 type according to the product content;
the scorch retarder is CTP (N-cycloethyl phthalimide).
The industrial turnout rubber base plate for the railway turnout is prepared from the following components in parts by weight:
and (3) large material:
1500E 100 parts of styrene butadiene rubber;
small materials:
5 portions of anti-aging agent
Coupling agent 2 parts
Stearic acid 2 parts
1 part of scorch retarder.
The reinforcing agent comprises the following components in parts by weight:
MT carbon black 38 parts
774 carbon Black 29 parts
12 parts of white carbon black.
Wherein the vulcanizing agent consists of the following components in parts by weight:
2 portions of sulfur powder
3 parts of zinc oxide.
Wherein the vulcanization accelerator consists of the following components in parts by weight:
1 part of accelerator TMTD
And 2 parts of accelerator CZ.
The anti-aging agent comprises the following components in parts by weight:
2 portions of antiager RD
1.5 portions of antiager D
1.5 parts of anti-aging agent 4010 NA.
Wherein the anti-wear agent is selected from one or more of high-wear-resistance carbon black N300, N550 and N774.
In step S1, each raw rubber block is cut to a weight not exceeding 20kg, the range error of the automatic weighing small-material system is not more than 15g, the range error of the large-material system is not more than 200g, various raw materials are placed in specified charging barrels and hoppers according to the model and specification specified by the system formula, and the raw material demand in each charging barrel is set according to the specified quantity of the system formula.
In step S2, a kneading machine and an open mill are used in the mixing process, the roll temperature is not too high during mixing, the roll temperature is measured by an infrared thermometer, and the operation can be performed only when the roll temperature meets the specification; when in mixing, the cooling circulating water is required to be opened, the circulating water flow is determined according to the roller temperature, and the consumption of the cooling circulating water is required to be increased when the roller temperature is too high; the open time of the open mill is 5-7min, the open temperature is below 80 ℃, the mixing time of the kneader is 3-10min, the mixing temperature is below 120 ℃, and the mixing pressure is 0.4-0.8 MPa.
Step S2, putting raw rubber into a kneading machine for plastication, controlling the plastication temperature below 120 ℃ and the time at 1-2min, opening an automatic storage pressure-feed tank, adding a large material and a prepared small material (except for an accelerator CZ, an accelerator TT and sulfur powder) for primary mixing, controlling the primary mixing temperature below 120 ℃ and the time at about 5-7min, putting the mixed rubber material into an open mill through a lifter, connecting pieces on a roller, adding the accelerator CZ, the accelerator TT and the sulfur powder, adjusting the roller distance to 2-3mm after the powder is eaten uniformly, dialing up and rolling, adjusting the roller distance to 4-6mm, and turning the materials uniformly to obtain pieces; and (4) after the film is taken out, the film is placed on a clean material rack for cooling, the film is numbered, and the formed film is required to be stored according to different specifications in a classified manner, is not allowed to fall to the ground and is infected with impurities.
Wherein, in step S3, the rubber material produced on the same day must be quickly inspected one by one, each rubber material is cut into blocks randomly as vulcanized test pieces under the conditions of 160 ± 10 ℃ x 8 ± 2min, the test pieces are naturally cooled after being vulcanized, and the rubber compound appearance (white particles on the surface, carbon black wafers on the surface, surface finish, film shape and rubber compound thickness), physical standard (hardness (shore a), working resistance, tensile strength, elongation at break and 200% stress at definite elongation) is tested after being completely cooled, the qualified rubber material is inspected, and is stored in a semi-finished product warehouse according to batch number after being cooled, the semi-finished product warehouse must be dried and cleaned, the rubber material must be stacked off the ground without falling, the stacking height of the rubber material must not exceed 1m, the storage time of the rubber material in the semi-finished product warehouse must not exceed 7 days to the longest, and the shortest time does not exceed 4 hours, the semi-finished rubber material should be prevented from being stored at high temperature, the heat source is far away, the highest temperature in summer is not more than 40 ℃, and the principle of first-in first-out is adopted when the sizing material is applied.
In step S4, when cutting the film, the length direction of the formed film is required to be consistent with the rolling direction of the rubber material, the rubber material is weighed according to each model, and is used for vulcanization, the mold is preheated for 30-90min, opened, the sundries in the mold cavity are removed, the rubber is quickly filled, the semi-finished film is placed in the center of the mold cavity when filling the rubber, the hydraulic motor is started to immediately pressurize and vulcanize after filling the rubber, the vulcanizing condition is 160 ± 10 ℃ x 8 ± 2min x 19 ± 3MPa, whether the temperature and pressure values are consistent with the specified temperature and pressure is checked at any time during the vulcanizing process, the vulcanizing time is strictly controlled, the mold is quickly decompressed and taken after vulcanizing, the cushion plate is slightly pried by a copper plating screwdriver or a bamboo plate, and the cushion plate is pried lightly to prevent the cushion plate from being torn and damaging the mold.
In the step S5, the scissors and the crescent knife are used for trimming, the knife should be perpendicular to the thickness direction during trimming to prevent damage to the backing plate, and the scissors are responsible for appearance inspection of the product during production, and when the product is found to be out of standard, the product is found to be out of corner, glue, spongy, rough edges and sizes, and the product should not be placed into a finished product.
In step S6, the finished product inspection is self-inspection, spot inspection and delivery inspection, wherein the self-inspection is to inspect the external dimensions and identifications of all products produced by the first mold every day in the production process of the sulfur chemical industry, the products can be produced after the products are qualified, the appearance of the products is inspected by spot inspection of any mold and any model in any cavity of all vulcanizing equipment every six hours, and the products with defects (such as corner defect, rubber defect, foaming and the like) are not to be put into the finished products and are treated according to waste products; the spot check is that full-time inspectors need to carry out at least one spot check on the three vulcanized elements, the external dimensions and the marks every day; the factory inspection is that the inspection department strictly inspects the physical properties of the product and factory inspection items according to the technical standards of the railway industry standards TB/T1495-2020 and TB/T3065-2020 and the drawing requirements of GLC (06)01, GLC (07)02, GLC (07)04, GLC (08)01, GLC (09)04 and the like, and issues inspection reports and saves original records.
In the step S7, the backing plate can be packaged by a woven bag and a packaging box, a certificate is placed in the package, the name, specification, number, weight, manufacturer name, lot number, inspector and production date of the product are indicated on the certificate, the name, drawing number, worksheet number, box number, packing date and supply backing plate are indicated on the packaging box, the backing plate is stored in a clean, ventilated and cool place far away from heat source and chemical reagent pollution, the storage period is one year, each performance index of the rubber backing plate in the storage period is not lower than the specification of the technical standards TB/T1495-2020 and TB/T3065-2020 of the railway industry, the technical standards of the GLC (06)01, the GLC (07)02, the GLC (07)04, the GLC (08)01, the GLC (09)04 and other drawing requirements, the backing plate is strictly prohibited from contacting with chemical drugs harmful to rubber such as oil and organic solvents in the transportation process, and should be protected from exposure to sunlight.
The manufactured and packaged and fixed rubber base plate is transported to a custom track laying site, the switch rail and the stock rail are fixed together according to technical condition requirements, the frog is assembled on the switch tie, other parts such as fasteners and fasteners are packaged in a classified mode and transported independently, and the switch rail and the stock rail are integrally assembled and debugged on the laying site.
The invention has the beneficial effects that: the industrial turnout rubber tie plate for the railway turnout is prepared by a 4+8 powder automatic batching system according to raw materials (reclaimed materials are not used) required by the rubber tie plate for the railway concrete sleeper in China, a kneading machine and an open mill are adopted for mixing to prepare a semi-finished product, and then a high-precision automatic rapid vacuum front-top hot-pressing forming machine is used for vulcanizing and different specifications and models of rubber tie plate molds are customized, prepared and molded to form a set of finished system; the industrial turnout rubber tie plate for the railway turnout is stable in physical performance index, strong in weather resistance and long in service life, the industrial standard TB/T1495-2020 and the technical standard TB/T3065-2020 of the railway turnout prepared by the industrial standard TB/T1495-2020 and the drawing requirements of GLC (06)01, GLC (07)02, GLC (07)04, GLC (08)01, GLC (09)04 and the like are completely met, the laying stability and the safety of turnout products produced by matching can meet the actual field requirements on the line, most problems in the prior art are effectively solved, and the industrial turnout rubber tie plate for the railway turnout has high practical value.
Drawings
FIG. 1 is a schematic view of GLC (06) 01-40160-220-0;
FIG. 2 is a schematic view of GLC (06) 01-40960-270-0;
FIG. 3 is a schematic view of GLC (07) 02-40160-220;
FIG. 4 is a schematic view of GLC (07) 02-402G;
FIG. 5 is a schematic view of GLC (07) 04-412640-255-14 (II);
FIG. 6 is a schematic view of GLC (08) 01-40160-220-6.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The first embodiment is as follows:
a preparation method of an industrial turnout rubber base plate used under a railway turnout comprises the following steps:
s1, preparing raw materials; s2; preparing a mixing process; s3, checking the semi-finished rubber material; s4, vulcanizing process; s5, trimming; s6, detecting a finished product; s7, packaging and transporting;
weighing the following raw material components:
(1) coarse fodder
Styrene-butadiene rubber 1500E: 35000g + -200 g
(2) Small material
MT carbon black: 13000 g. + -. 200g
N330 carbon Black: 5000g +/-200 g
774 carbon Black: 10000g +/-200 g
White carbon black: 4000 g. + -. 200g
Sulfur powder: 360g +/-15 g
Accelerator CZ: 620g +/-15 g
Accelerator TMTD: 260 g. + -. 15g
Anti-aging agent RD: 700 g. + -. 15g
An anti-aging agent D: 400 g. + -. 15g
Anti-aging agent 4010 NA: 500 g. + -. 15g
Antiscorching agent CTP: 100 g. + -. 15g
Zinc oxide: 1000 g. + -. 15g
Stearic acid: 400 g. + -. 15g
Silane coupling agent HP-669C: 400 g. + -. 15 g.
Wherein the anti-wear agent is selected from one or more of high-wear-resistance carbon black N300, N550 and N774.
In step S1, each raw rubber block is cut to a weight not exceeding 20kg, the range error of the automatic weighing small-material system is not more than 15g, the range error of the large-material system is not more than 200g, various raw materials are placed in specified charging barrels and hoppers according to the model and specification specified by the system formula, and the raw material demand in each charging barrel is set according to the specified quantity of the system formula.
In step S2, a kneading machine and an open mill are used in the mixing process, the roll temperature is not too high during mixing, the roll temperature is measured by an infrared thermometer, and the operation can be performed only when the roll temperature meets the specification; when in mixing, the cooling circulating water is required to be opened, the circulating water flow is determined according to the roller temperature, and the consumption of the cooling circulating water is required to be increased when the roller temperature is too high; the open time of the open mill is 5-7min, the open temperature is below 80 ℃, the mixing time of the kneader is 3-10min, the mixing temperature is below 120 ℃, and the mixing pressure is 0.4-0.8 MPa.
Step S2, putting raw rubber into a kneading machine for plastication, controlling the plastication temperature below 120 ℃ and the time at 1-2min, opening an automatic storage pressure-feed tank, adding a large material and a prepared small material (except for an accelerator CZ, an accelerator TT and sulfur powder) for primary mixing, controlling the primary mixing temperature below 120 ℃ and the time at about 5-7min, putting the mixed rubber material into an open mill through a lifter, connecting pieces on a roller, adding the accelerator CZ, the accelerator TT and the sulfur powder, adjusting the roller distance to 2-3mm after the powder is eaten uniformly, dialing up and rolling, adjusting the roller distance to 4-6mm, and turning the materials uniformly to obtain pieces; and (4) after the film is taken out, the film is placed on a clean material rack for cooling, the film is numbered, and the formed film is required to be stored according to different specifications in a classified manner, is not allowed to fall to the ground and is infected with impurities.
Wherein, in step S3, the rubber material produced on the same day must be quickly inspected one by one, each rubber material is cut into blocks randomly as vulcanized test pieces under the conditions of 160 ± 10 ℃ x 8 ± 2min, the test pieces are naturally cooled after being vulcanized, and the rubber compound appearance (white particles on the surface, carbon black wafers on the surface, surface smoothness, film shape and rubber compound thickness), physical standard (hardness (shore a), working resistance, tensile strength, elongation at break and 200% stress at definite elongation) is quickly inspected after being completely cooled, the qualified rubber material is cooled and stored in a semi-finished product warehouse according to batch number, the semi-finished product warehouse must be dried and cleaned, the rubber material must be stacked off the ground without falling to the ground, the stacking height of the rubber material must not exceed 1m, the storage time of the rubber material in the semi-finished product warehouse must not exceed 7 days to the longest extent, and the shortest time does not exceed 4 hours, the semi-finished rubber material should be prevented from being stored at high temperature, should be far away from a heat source, the highest temperature in summer should not exceed 40 ℃, and the principle of first-in first-out should be implemented when the rubber material is applied.
In step S4, when cutting the film, the length direction of the formed film is required to be consistent with the rolling direction of the rubber material, the rubber material is weighed according to each model, and is used for vulcanization, the mold is preheated for 30-90min, opened, the sundries in the mold cavity are removed, the rubber is quickly filled, the semi-finished film is placed in the center of the mold cavity when filling the rubber, the hydraulic motor is started to immediately pressurize and vulcanize after filling the rubber, the vulcanizing condition is 160 ± 10 ℃ x 8 ± 2min x 19 ± 3MPa, whether the temperature and pressure values are consistent with the specified temperature and pressure is checked at any time during the vulcanizing process, the vulcanizing time is strictly controlled, the mold is quickly decompressed and taken after vulcanizing, the cushion plate is slightly pried by a copper plating screwdriver or a bamboo plate, and the cushion plate is pried lightly to prevent the cushion plate from being torn and damaging the mold.
In the step S5, the scissors and the crescent knife are used for trimming, the knife should be perpendicular to the thickness direction during trimming to prevent damage to the backing plate, and the scissors are responsible for appearance inspection of the product during production, and when the product is found to be out of standard, the product is found to be out of corner, glue, spongy, rough edges and sizes, and the product should not be placed into a finished product.
In step S6, the finished product inspection is self-inspection, spot inspection and delivery inspection, wherein the self-inspection is to inspect the external dimensions and identifications of all products produced by the first mold every day in the production process of the sulfur chemical industry, the products can be produced after the products are qualified, the appearance of the products is inspected by spot inspection of any mold and any model in any cavity of all vulcanizing equipment every six hours, and the products with defects (such as corner defect, rubber defect, foaming and the like) are not to be put into the finished products and are treated according to waste products; the spot check is that full-time inspectors need to carry out at least one spot check on the three vulcanized elements, the external dimensions and the marks every day; the factory inspection is that the inspection department strictly inspects the physical properties of the product and factory inspection items according to the technical standards of the railway industry standards TB/T1495-2020 and TB/T3065-2020 and the drawing requirements of GLC (06)01, GLC (07)02, GLC (07)04, GLC (08)01, GLC (09)04 and the like, and issues inspection reports and saves original records.
In the step S7, the backing plate can be packaged by a woven bag and a packaging box, a certificate is placed in the package, the name, specification, number, weight, manufacturer name, lot number, inspector and production date of the product are indicated on the certificate, the name, drawing number, worksheet number, box number, packing date and supply backing plate are indicated on the packaging box, the backing plate is stored in a clean, ventilated and cool place far away from heat source and chemical reagent pollution, the storage period is one year, each performance index of the rubber backing plate in the storage period is not lower than the specification of the technical standards TB/T1495-2020 and TB/T3065-2020 of the railway industry, the technical standards of the GLC (06)01, the GLC (07)02, the GLC (07)04, the GLC (08)01, the GLC (09)04 and other drawing requirements, the backing plate is strictly prohibited from contacting with chemical drugs harmful to rubber such as oil and organic solvents in the transportation process, and should be protected from exposure to sunlight.
The manufactured and packaged and fixed rubber base plate is transported to a custom track laying site, the switch rail and the stock rail are fixed together according to technical condition requirements, the frog is assembled on the switch tie, other parts such as fasteners and fasteners are packaged in a classified mode and transported independently, and the switch rail and the stock rail are integrally assembled and debugged on the laying site.
Example two: a method for testing the performance of a industrial turnout rubber base plate used under a railway turnout comprises the following steps:
the inspection equipment comprises the following steps:
shore A hardness tester
MEP-200 microcomputer controlled servo fatigue testing machine
WDL series multifunctional electronic tension tester
401A, 401-A, 802 heat aging test box, dryer
ZC36 type ultrahigh resistance meter
High insulation resistance tester
MH-74 abrasion tester
Digital display callipers
(II) hardness test method
The inventors randomly extracted three railroad turnout lower turnout rubber pad products in example 1, pressed a indenter of a predetermined shape into a test sample under predetermined test conditions, and measured the press-in depth. According to the GB/T2828.1, 2 backing plates are randomly extracted for testing respectively by the sampling method, and the test results meet the requirements and are qualified. The inspection steps are as follows:
1) the backing plate is stably placed on a flat and hard surface, 5 hardness measuring points at different positions are selected and measured on a plane between the grooves, and the distance between each measuring point and the edge of the backing plate is not less than 10 mm.
2) During the test, the pressure foot is quickly applied to the sample without impact, so that the pressure foot is parallel to the sample and applies enough pressure, the pressure foot and the sample are in close contact, and the indication value of the indicating device is read after the pressure foot and the sample are loaded for 3 s.
Note: a Shore A durometer used a 1kg weight.
3) The hardness values of 5 points are recorded, and the test result is taken as the median.
TABLE 1 hardness test chart of the present invention for railroad switch lower industrial switch rubber tie plate
(III) tensile Strength test
1. Tensile strength testing method
The inventor randomly extracts three industrial turnout rubber base plate products for railway turnout in the embodiment 1, cuts dumbbell-shaped test samples by using a rubber test I-type cutter to test the tensile strength of the products, randomly extracts 2 base plates for test respectively according to GB/T2828.1 by a sampling method, and the test results are qualified if the test results all meet the requirements. The inspection steps are as follows:
1) symmetrically clamping a sample on an upper clamp and a lower clamp of a tensile testing machine to enable tensile force to be uniformly distributed on a cross section, clamping an upper clamp, resetting a force value, clamping a lower clamp, adjusting an upper fine adjustment button and a lower fine adjustment button to enable the force value to return to zero, and resetting displacement; the gauge length between the two gauge length holders with large deformation is adjusted to 25 mm. Then stably clamping the sample;
2) the moving speed of the clamper is 500 mm/min +/-50 mm/min;
3) if the specimen breaks off outside the narrow portion, the test result is discarded, and the specimen is taken again for repeat test.
2. The results of the mechanical property (tensile strength) test are shown in tables 2 and 3, respectively.
TABLE 2 tensile strength test chart before aging of the industrial turnout rubber base plate for railway turnout
TABLE 3 tensile Strength test Table after aging of Industrial turnout rubber base plate for railway turnout
(IV) constant compression permanent set inspection method
The inventor randomly extracts three industrial turnout rubber base plate products for the railway turnout in the embodiment 1, cuts a circular sample with the diameter of 30mm from the industrial turnout rubber base plate products by using a rubber test, tests the constant compression permanent deformation of the circular sample, and respectively extracts 2 base plates by using a sampling method according to GB/T2828.1 to test, wherein the test results meet the requirements and are qualified. The inspection steps are as follows:
(1) sample preparation
A special cutter is adopted, a groove is used as a central line on a rubber base plate (the groove is not used, the groove can be cut at will), a circular sample with the diameter of 30mm is cut, the thickness of three points is measured by a vernier caliper, and the average value is the thickness before compression.
(2) Test procedure
Measuring the thickness of the round gasket before the test, uniformly distributing and measuring 3 positions, and taking the average value as h0The gasket was then placed in a compression jig and compressed to 50% of its original thickness. Placing in a constant temperature oven at (100 + -2) ° C, maintaining for 24h, taking out, cooling at (23 + -3) ° C for (30 + -1) min, removing the fixture, maintaining the sample at (23 + -3) ° C for (24 + -0.5) h, and measuring the thickness h of the pad1(3 points marked before compression are required to be measured and averaged) and is reported as the thickness h of the sample after the test1。
(3) Test results
Calculating a formula; c = (h)0–h1)/h0×100
In the formula: c- -constant compression set, unit: percent;
h0-thickness of the sample before compression, unit: mm;
h1-thickness of the sample after compression, unit: mm;
the test result shows that the constant compression permanent deformation is not more than 20 percent, and the product is qualified.
TABLE 4 constant compression set test results of the industrial railroad switch rubber pad under the railroad switch of the present invention
(V) abrasion testing method
The inventor randomly extracts three rubber tests for the industrial turnout rubber base plate product used under the railway turnout in the embodiment 1, tests by using an MH-74 type Akron abrasion machine, randomly extracts 0.5kg of semi-finished products according to GB/T2828.1 by a sampling method, and the test results are qualified if the test results all meet the requirements. The inspection steps are as follows:
1) the stuck sample wheel is fixed on a rubber wheel shaft, and a motor is started to enable the sample to rotate clockwise.
2) Taking down the sample after pre-grinding for 15-20 min, brushing off the rubber scraps, weighing the weight of the sample to be accurate to 0.01 g.
3) The test was carried out using a pre-ground sample. And after the sample runs for 1.61km, the motor is turned off, the sample is taken down, the rubber scraps are brushed off, and the weight is weighed within 1 hour to be accurate to 0.01 g.
4) The density of the sample was measured in accordance with GB/T533.
5) The sample wear volume V was calculated according to equation (1):
V=·············⑴
in the formula:
v is the sample abrasion volume in cubic centimeters (cm);
m 1-mass of sample after pre-grinding, unit is (g);
m 2-mass of the test specimen in (g);
p-the density of the sample in grams per cubic centimeter (g/cm 3).
6) The sample abrasion index A (%) was calculated according to the formula (2):
A=···············⑵
in the formula:
v2-abrasion volume for standard formulation (see appendix A);
v1 — abrasion volume of test formulation in the same mileage.
7) The number of tests is not less than two, the test results are identified by arithmetic mean, and the difference between the results of the two samples and the mean should be within + -10%.
TABLE 5 abrasion test results of the industrial railroad switch rubber pad under the railroad switch of the present invention
Room temperature: curing time of adhesive tape at 22 ℃: 10 minutes
(VI) working resistance test
The inventor randomly extracts rubber tests for the industrial turnout rubber base plate products for the railway turnout in three embodiments 1, uses a high insulation resistance tester to test the working resistance, and randomly extracts 2 base plates to respectively test according to GB/T2828.1 by a sampling method, and the test results are qualified if the test results all meet the requirements. The inspection steps are as follows:
1) the ambient temperature during the test was 20 ℃. + -. 5 ℃.
2) Placing the finished product of the lower rail backing plate between electrodes A, B of a flat steel plate or a copper plate with the length and width the same as those of the upper and lower bearing surfaces of the lower rail backing plate and the mass not less than 5kg, connecting a high impedance meter, placing a test voltage selection switch at 500V, switching on a power supply, preheating after an indicator lamp is turned on, adjusting an instrument and testing according to the specified steps of the instrument, discharging for 30s after the test is finished, repeating the test for 2 times, and taking the arithmetic average value of the test results of 3 times.
TABLE 6 test results of the working resistance of the industrial railroad switch rubber pad under the railroad switch of the present invention
| Serial number | Inspection item | Unit of | |
| 1 | Working resistor | Ω | 3.1×1010 |
| 2 | Working resistor | Ω | 4.7×1010 |
(VII) oil absorption test
1. The oil absorption rate test method comprises the following steps:
at present, the industrial turnout rubber base plate products for the railway turnout obtained in the embodiment 1 are randomly and respectively extracted to be used as samples for inspection, 2 base plates are randomly and respectively extracted according to GB/T2828.1 by a sampling method, and the test results are qualified if the test results all meet the requirements. The inspection steps are as follows:
the mass (m) of each sample in air was first measured at standard laboratory temperature0) To 1mg accuracy, the mass (m) of the sample in distilled water was determined0W), to the nearest 1mg, the mass is measured in distilled water to remove air bubbles (if necessary, detergent). Calculating according to the formula (3):
△V100=[（mi-mi,w/m0-m0,w)-1]×100%……………………（3）
in the formula: m is0-mass in air of the sample before soaking in grams (g);
mi-mass in air of the soaked sample in grams (g);
m0w is the mass of the sample in distilled water before soaking in grams (g);
Miw is the mass of the sample in distilled water after soaking in grams (g);
taking the median of the test results of the three samples as the test result.
2. Oil absorption test results
TABLE 7 original record of water absorption and oil absorption test of industrial railroad switch rubber pad under railway switch
TABLE 8 inspection results of physical and mechanical properties of industrial turnout rubber tie plate for railway turnout of the present invention
TABLE 9 static stiffness, dynamic-static stiffness ratio, cold resistance, fatigue resistance and assembling fatigue resistance test results of the industrial turnout rubber base plate for railway turnout of the present invention
According to the test results shown in figure 1 and tables 1-9, the tensile strength, hardness, resistance, static rigidity, dynamic and static rigidity ratio, cold resistance, fatigue resistance, assembly fatigue performance and various physical and mechanical properties of the industrial turnout rubber base plate for railway turnout provided by the invention all meet the national standards.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. A industrial turnout rubber base plate used under a railway turnout and a preparation method thereof are characterized in that the preparation method comprises the following steps:
s1, preparing raw materials; s2; preparing a mixing process; s3, checking the semi-finished rubber material; s4, vulcanizing process; s5, trimming; s6, detecting a finished product; s7, packaging and transporting;
the raw materials are divided into small materials and big materials:
and (3) large material:
styrene-butadiene rubber 1500E 100 parts
75-85 parts of reinforcing agent
13 to 18 portions of wear-resistant agent
Small materials:
3-4 parts of vulcanizing agent
2-3 parts of accelerator
4-5 parts of anti-aging agent
1-2 parts of coupling agent
1-2 parts of stearic acid
1 part of a scorch retarder;
wherein the reinforcing agent is selected from one or more of MT novel carbon black, 774 carbon black, white carbon black, natural gas semi-reinforcing carbon black and fly ash type rubber reinforcing agent;
the vulcanizing agent is selected from one or more of solid sulfur, zinc oxide and ZnO;
the promoter is selected from one or more of promoter H, promoter D, promoter DM, promoter TMTD, promoter M, promoter NOBS, promoter CZ, promoter TBzTD and promoter CBS;
the anti-aging agent is selected from one or more of anti-aging agent PAN, anti-aging agent TMQ, anti-aging agent 4010NA, anti-aging agent DTPD and anti-aging agent D;
the coupling agent is HP-669C;
the stearic acid is divided into one or more of 1480 type, 1850 type and 1865 type according to the product content;
the scorch retarder is CTP.
2. The industrial fork rubber pad under the railway turnout and the preparation method thereof according to claim 1 are characterized in that the industrial fork rubber pad under the railway turnout is prepared from the following components in parts by weight:
and (3) large material:
1500E 100 parts of styrene butadiene rubber;
small materials:
vulcanizing agent 4 parts
Accelerator 4 parts
5 portions of anti-aging agent
Coupling agent 2 parts
Stearic acid 2 parts
1 part of scorch retarder.
3. The industrial turnout rubber base plate for the railway turnout and the preparation method thereof according to claim 1 are characterized in that the reinforcing agent comprises the following components in parts by weight:
MT carbon black 38 parts
774 carbon Black 29 parts
12 parts of white carbon black.
4. The rubber tie plate for the industrial switch under the railway turnout and the preparation method thereof according to any one of claims 1-3, wherein the vulcanizing agent is composed of the following components in parts by weight:
2 portions of sulfur powder
3 parts of zinc oxide.
5. The tool switch rubber pad under railway turnout and the preparation method thereof according to any one of claims 1-4, wherein the vulcanization accelerator comprises the following components in parts by weight:
1 part of accelerator TMTD
And 2 parts of accelerator CZ.
6. The rubber tie plate for industrial turnout junction under railway switch and the preparation method thereof according to any one of claims 1 to 5, wherein the anti-aging agent is composed of the following components in parts by weight:
2 portions of antiager RD
1.5 portions of antiager D
1.5 parts of anti-aging agent 4010 NA.
7. The rubber tie plate for industrial turnout junction according to any one of claims 1-6, wherein the wear-resistant agent is selected from one or more of high wear-resistant carbon black N300, N550 and N774.
8. The railroad switch lower industrial switch rubber tie plate and the preparation method thereof according to claim 1, wherein in the step S1, the weight of each raw rubber block is not more than 20kg, the range error of the automatic weighing small material system is not more than 15g, the range error of the large material system is not more than 200g, various raw materials are placed in the specified material barrels and hoppers according to the model specification specified by the system formula, and the raw material demand in each material barrel is set according to the quantity specified by the system formula.
9. The railroad switch lower industrial switch rubber tie plate and the preparation method thereof according to claim 1, wherein in the step S2, the mixing process uses a kneader and an open mill, the roll temperature is not too high during mixing, the roll temperature is measured by an infrared thermometer, and the operation can be performed only after the roll temperature meets the specification; when in mixing, the cooling circulating water is required to be opened, the circulating water flow is determined according to the roller temperature, and the consumption of the cooling circulating water is required to be increased when the roller temperature is too high; the open time of the open mill is 5-7min, the open temperature is below 80 ℃, the mixing time of the kneader is 3-10min, the mixing temperature is below 120 ℃, and the mixing pressure is 0.4-0.8 MPa.
10. The industrial turnout rubber tie plate for the railway turnout and the preparation method thereof according to claim 1, wherein the step S2 is that raw rubber is put into a kneading machine for plastication, the plastication temperature is controlled below 120 ℃, the time is controlled within 1-2min, an automatic storage pressure feed tank is opened, large materials and prepared small materials are added for primary mixing, the primary mixing temperature is controlled below 120 ℃, the time is controlled within 5-7min, the mixed rubber materials are put into an open mill through a lifter, after the rollers are connected, the accelerators CZ, the accelerators TT and the sulfur powder are added, after the powder is eaten uniformly, the roller distance is adjusted to 2-3mm, the pulling-through and rolling are carried out, the roller distance is adjusted to 4-6mm, and after the left and right mixing is carried out uniformly, the sheets are taken out; and (4) after the film is taken out, the film is placed on a clean material rack for cooling, the film is numbered, and the formed film is required to be stored according to different specifications in a classified manner, is not allowed to fall to the ground and is infected with impurities.
11. The railroad switch lower rubber pad and the method for manufacturing the same as claimed in claim 1, wherein in step S3, the rubber material produced on the same day must be inspected quickly one by one for each tray, each tray of rubber material is cut into blocks randomly as vulcanized test pieces under the vulcanization conditions of 160 ± 10 ℃ x 8 ± 2min, the test pieces are naturally cooled after being vulcanized, the test pieces are tested after being completely cooled, the appearance and physical property standards of the rubber compound, the working resistance, the tensile strength, the elongation at break and the stress at 200% elongation at definite elongation are inspected quickly, the qualified rubber material is stored in the semi-finished product warehouse according to the lot number after being cooled, the semi-finished product warehouse must be dried and cleaned, the rubber material must be stacked on the ground without falling to the ground, the stacking height of the rubber material must not exceed 1m, the storage time of the rubber material in the semi-finished product warehouse must not exceed 7 days at the longest, the shortest does not exceed 4 hours, the semi-finished rubber material should be stored at high temperature, the heat source is far away, the highest temperature in summer is not more than 40 ℃, and the principle of first-in first-out is adopted when the sizing material is applied.
12. The industrial turnout rubber base plate for the railway turnout and the preparation method thereof according to claim 1, it is characterized in that in the step S4, when cutting the rubber sheet, the length direction of the formed rubber sheet is required to be consistent with the rolling direction of the rubber material, weighing rubber materials according to each type, waiting for vulcanization, preheating the mold for 30-90min, opening the mold, removing impurities in the mold cavity, quickly filling rubber, placing semi-finished rubber sheets in the center of the mold cavity during rubber filling, after rubber filling is finished, starting a hydraulic motor to immediately pressurize and vulcanize, wherein the vulcanizing condition is 160 +/-10 ℃ multiplied by 8 +/-2 min multiplied by 19 +/-3 MPa, checking whether the temperature and pressure values are consistent with the specified temperature and pressure at any time in the vulcanizing process, strictly controlling the vulcanizing time, quickly reducing the pressure and taking a mold after vulcanizing, slightly prying up the base plate by using a copper-plated screwdriver or a bamboo plate, and slightly prying the base plate to prevent the base plate from being torn and damaging the mold.
13. The railroad switch lower tool yoke rubber pad and the manufacturing method thereof as claimed in claim 1, wherein in the step S5, scissors and crescent knives are used for trimming, the trimming knife should be perpendicular to the thickness direction to prevent damage to the pad, and in the production process, the appearance inspection of the product is performed, and the product is found to be out of standard in unfilled corners, unfilled rubber, spongy objects, burrs and sizes, and should not be put into the finished product.
14. The industrial turnout rubber tie plate for the railway turnout and the preparation method thereof according to claim 1, wherein in the step S6, finished product detection is self-checking, sampling inspection and factory inspection respectively, wherein the self-checking is that the sulfur chemical industry carries out the shape dimension and identification inspection according to all products produced by the first mold every day in the production process, the production can be carried out after the products are qualified, the appearance inspection of any product in any mold and any cavity of all vulcanizing equipment is sampled every six hours, and the products with defects are found not to be put into the finished products and are treated according to the waste products; the spot check is that full-time inspectors need to carry out at least one spot check on the three vulcanized elements, the external dimensions and the marks every day; the factory inspection is that the inspection department strictly inspects the physical properties of the product and factory inspection items according to the technical standards of the railway industry standards TB/T1495-2020 and TB/T3065-2020 and the drawing requirements of GLC (06)01, GLC (07)02, GLC (07)04, GLC (08)01, GLC (09)04 and the like, and issues inspection reports and saves original records.
15. The railroad switch lower industrial turnout rubber tie plate and the manufacturing method thereof according to claim 1, wherein in step S7, the tie plate can be packaged by woven bags and packing cases, the certification is placed in the packing cases, the product name, specification type, quantity, weight, manufacturer name, batch number, inspector and production date are indicated on the certification, the product name, drawing number, worksheet number, case number, packing date are indicated on the packing cases, the supply tie plate should be stored in clean, ventilated, shady and cool places away from heat source and chemical reagent pollution, the storage period is one year, and each performance index of the rubber tie plate in the storage period is not lower than the specification of the railway industry standard TB/T1495-2020, TB/T3065-2020, and technical standard GLC (06)01, GLC (07)02, GLC (07)04, GLC (08)01, GLC (09)04 and the like, the mat is kept from contact with rubber-damaging chemicals such as oils, organic solvents, etc. during transport and should be protected from exposure to sunlight.
16. The application of the industrial turnout rubber tie plate for the railway turnout in accordance with claim 1, wherein the finished product prepared, packaged and fixed rubber tie plate is transported to a custom rail laying site, the switch rail and the stock rail are fixed together according to technical condition requirements, the frog is assembled on the turnout sleeper, other parts such as fasteners, fasteners and the like are packaged in a classified mode, transported independently, integrally assembled at the laying site and debugged.
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| CN202110927953.2A CN113583314A (en) | 2021-08-13 | 2021-08-13 | Industrial turnout rubber base plate used under railway turnout and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110927953.2A CN113583314A (en) | 2021-08-13 | 2021-08-13 | Industrial turnout rubber base plate used under railway turnout and preparation method and application thereof |
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| CN112961410A (en) * | 2021-02-10 | 2021-06-15 | 浙江天铁实业股份有限公司 | Rubber base plate for subway rail transit, composition and preparation method thereof |
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Application publication date: 20211102 |