CN102887510A - Production method of carbon-iron composite material - Google Patents
Production method of carbon-iron composite material Download PDFInfo
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- CN102887510A CN102887510A CN2011102017817A CN201110201781A CN102887510A CN 102887510 A CN102887510 A CN 102887510A CN 2011102017817 A CN2011102017817 A CN 2011102017817A CN 201110201781 A CN201110201781 A CN 201110201781A CN 102887510 A CN102887510 A CN 102887510A
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Abstract
The invention relates to a production method of a carbon-iron composite material. The production method is characterized by comprising the following steps of: adding iron powder, a silicane coupling agent (a K577 solvent) and biphenyl into an agitated vessel for stirring, heating, and melting coal tar pitch to prepare iron powder additive mixed solution; adding carbon black powder, graphite powder and asphalt coke powder into a kneading kettle for kneading, heating, adding the iron powder additive mixed solution, stirring, and mixing to prepare a clinker; carrying out hot rolling on the mixed clinker to obtain a flake, cooling, milling, carrying out compression moulding, roasting, dipping by the use of coal tar pitch, using a bullnose tool, dipping by the use of resin, turning, carrying out secondary resin dipping, and curing to obtain the finished product. As iron molecules are added into a carbon-graphite material matrix, the iron molecules and carbon molecules react and bond to be converted into iron carbide. Therefore, excellent performance of the original carbon-graphite material is maintained, and wear resistance and lubricity of the material are increased. The product cost is low, and market competitiveness of the product is raised.
Description
Technical field
The present invention relates to a kind of production method of carbon-iron composite material, specifically belong to the non-metallic material technical field.
Background technology
Use under the maturing temperature of carbon material at standard machinery, the carbon molecule can be finished the process that reaction bonded becomes iron carbide with iron molecule, existing owing to iron carbide in take carbon graphite material as main body, greatly improved the wear resistance of material, because iron powder price and carbon graphite material are close, cost does not improve, but can double its work-ing life, improved the competitive power of product, at the carbon graphite material production industry, just attempt in carbon graphite material, adding iron the eighties since last century, but do not have effect, mainly have following defective:
1, iron molecule is difficult to be evenly distributed in carbon graphite material.
2, amount can not strengthen, and causes the roasting cracking.
3, iron molecule can not fully react conversion.
Owing to there being above defective, this material is not widely applied so far.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, thereby provide a kind of production method of carbon-iron composite material, adopt two sections kneading methods, in the carbon graphite material matrix, added iron molecule, iron molecule is combined with the phase reaction of carbon molecule and is changed into iron carbide under the high temperature, has not only kept former carbon graphite material premium properties, but also has increased wear resistance and the oilness of material, product cost is low, has improved the market competitiveness.
According to technical scheme provided by the invention, a kind of production method of carbon-iron composite material adopts following processing step, and its formula rate is counted by weight:
1, the preparation of iron powder additive:
Get 10～25 parts of iron powders, 5～8 parts of silane coupling agents (K577 solvent), 67～85 parts in biphenyl, add fully to stir in the stirring tank and close, 400～500 rev/mins of rotating speeds, stir under the room temperature and begin after 30～40 minutes to heat up, temperature rise to 130 ℃～140 ℃, add 65～70 parts of molten molten coal-tar pitch, molten molten coal-tar pitch temperature is at 130～150 ℃, and it is 25～30% that molten molten coal-tar pitch accounts for whole grog, continue to stir and intensification, temperature is 140～150 ℃, and the time needs 2～2.5 hours, makes iron powder additive mixing solutions.
2, grog preparation:
In mediating still, 200 liters add 5～8 parts of carbon black powders, 10～15 parts of Graphite Powder 99s, 67～85 parts of pitch coke powders are placed on mediates kneading in the still, starts simultaneously and mediates the still heating installation, kneading 1～1.5 hour, temperature adds 32～36 parts of iron powder additive mixing solutionss in the time of 130～150 ℃, iron powder accounts for 12% of whole carbon graphite powder summation, continue to stir, temperature is 160～180 ℃, and the time needs 2.5～3 hours, namely finishes the grog preparation.
3, grog rolls into the thick thin slice of 1.5～2mm after going out to mediate still while hot.
4, can wear into 150～200 purpose powders after rolling sheet cooling (temperature＜50 ℃).
5, get final product compression moulding behind the abrasive dust, pressed density 1.8～2.2g/cm3.
6, advance roasting in the stove, the beginning heat-up rate is 4～5 ℃/min, in 700 ℃～900 ℃ scopes of temperature, slow down heat-up rate, heat-up rate is 1～2 ℃/min, and later heat-up rate is 4～5 ℃/min, roasting to 1100～1200 ℃, once sintered density reaches 1.8～2.2g/cm3.
7, roasting product is carried out coal-tar pitch dipping, dipping time: 8～12 hours.
8, pickled product is carried out roasting again, the beginning heat-up rate is 4～5 ℃/min, in 700 ℃～900 ℃ scopes of temperature, slow down heat-up rate, heat-up rate is 1～2 ℃/min, and later heat-up rate is 4～5 ℃/min, roasting to 1100～1200 ℃, re-baking product density reaches 1.9～2.3g/cm
3
9, waste car.
10, resin impregnation, according to the finished product working condition requirement, phenolic aldehyde or furane resin dipping 4～6 hours, and solidified 18～24 hours.
11, Vehicle Processing is to finished product.
12, secondary resin impregnation, according to the finished product working condition requirement, phenolic aldehyde or furane resin dipping 4～6 hours, and solidify and be finished product in 18～24 hours.
Described iron powder particle diameter is 15～35um.
Compared with the prior art the present invention has the following advantages: the present invention has added iron molecule in the carbon graphite material matrix, iron molecule is combined with the phase reaction of carbon molecule and is changed into iron carbide under the high temperature, not only kept former carbon graphite material premium properties, but also wear resistance and the oilness of material have been increased, product cost is low, has improved the market competitiveness.
Embodiment
Following the present invention is further described in connection with embodiment:
Embodiment one: the production method of carbon-iron composite material of the present invention adopts following processing step: its formula rate is counted by weight:
1, the preparation of iron powder additive:
Get 10 parts of iron powders, 5 parts of silane coupling agents (K577 solvent), 67 parts in biphenyl, add fully to stir in the stirring tank and close, 400 rev/mins of rotating speeds, stirring begins after 30 minutes to heat up under the room temperature, temperature rise to 130 ℃, add 65 parts of molten molten coal-tar pitch, molten molten coal-tar pitch temperature is at 130 ℃, and it is 25% that molten molten coal-tar pitch accounts for whole grog, continue to stir and intensification, temperature is 140 ℃, and the time needs 2 hours, makes iron powder additive mixing solutions.Described iron powder particle diameter is 15um.
2, grog preparation:
In mediating still, 200 liters add 5 parts of carbon black powders, 10 parts of Graphite Powder 99s, 67 parts of pitch coke powders are placed on mediates kneading in the still, starts simultaneously and mediates the still heating installation, kneading 1 hour, temperature adds 32 parts of iron powder additive mixing solutionss in the time of 130 ℃, iron powder accounts for 12% of whole carbon graphite powder summation, continue to stir, temperature is 160 ℃, and the time needs 2.5 hours, namely finishes the grog preparation.
3, grog rolls into the thick thin slice of 1.5mm after going out to mediate still while hot.
4, can wear into 150 purpose powders after rolling sheet cooling (temperature＜50 ℃).
5, get final product compression moulding behind the abrasive dust, pressed density 1.80g/cm3.
6, advance roasting in the stove, the beginning heat-up rate is 4 ℃/min, in 700 ℃～900 ℃ scopes of temperature, slows down heat-up rate, and heat-up rate is 1 ℃/min, and later heat-up rate is 4 ℃/min, roasting to 1100～1200 ℃, and once sintered density reaches 1.8g/cm3.
7, roasting product is carried out coal-tar pitch dipping, dipping time: 8 hours.
8, pickled product is carried out roasting again, the beginning heat-up rate is 4 ℃/min, between 700 ℃～900 ℃ of temperature, slow down heat-up rate, heat-up rate is 1 ℃/min, and later heat-up rate is 4 ℃/min, roasting to 1100～1200 ℃, re-baking product density reaches 1.9g/cm
3
9, waste car.
10, resin impregnation, according to the finished product working condition requirement, phenolic aldehyde or furane resin dipping 4 hours, and solidified 18 hours.
11, Vehicle Processing is to finished product.
12, secondary resin impregnation, according to the finished product working condition requirement, phenolic aldehyde or furane resin dipping 4 hours, and solidify and be finished product in 18 hours.
The technical feature of carbon-iron composite material and conventional material
Embodiment two: the production method of carbon-iron composite material of the present invention adopts following processing step: its formula rate is counted by weight:
1, the preparation of iron powder additive:
Get 17.5 parts of iron powders, 6.5 parts of silane coupling agents (K577 solvent), 76 parts in biphenyl, add fully to stir in the stirring tank and close, 450 rev/mins of rotating speeds, stirring begins after 35 minutes to heat up under the room temperature, temperature rise to 135 ℃, add 67.5 parts of molten molten coal-tar pitch, molten molten coal-tar pitch temperature is at 140 ℃, and it is 27.5% that molten molten coal-tar pitch accounts for whole grog, continue to stir and intensification, temperature is 145 ℃, and the time needs 2.25 hours, makes iron powder additive mixing solutions.Described iron powder particle diameter is 25um.
2, grog preparation:
In mediating still, 200 liters add 6.5 parts of carbon black powders, 12.5 parts of Graphite Powder 99s, 76 parts of pitch coke powders are placed on mediates kneading in the still, starts simultaneously and mediates the still heating installation, kneading 1.25 hours, temperature adds 34 parts of iron powder additive mixing solutionss in the time of 140 ℃, iron powder accounts for 12% of whole carbon graphite powder summation, continue to stir, temperature is 170 ℃, and the time needs 2.75 hours, namely finishes the grog preparation.
3, grog rolls into the thick thin slice of 1.75mm after going out to mediate still while hot.
4, can wear into 175 purpose powders after rolling sheet cooling (temperature＜50 ℃).
5, get final product compression moulding behind the abrasive dust, pressed density 2.0g/cm3.
6, advance roasting in the stove, the beginning heat-up rate is 4.5 ℃/min, between 700 ℃～900 ℃ of temperature, slows down heat-up rate, and heat-up rate is 1.5 ℃/min, and later heat-up rate is 4.5 ℃/min, roasting to 1150 ℃, and once sintered density reaches 2.0g/cm3.
7, roasting product is carried out coal-tar pitch dipping, dipping time: 10 hours.
8, pickled product is carried out roasting again, the beginning heat-up rate is 4.5 ℃/min, between 700 ℃～900 ℃ of temperature, slow down heat-up rate, heat-up rate is 1.5 ℃/min, and later heat-up rate is 4.5 ℃/min, roasting to 1150 ℃, re-baking product density reaches 2.1g/cm
3
9, waste car.
10, resin impregnation, according to the finished product working condition requirement, phenolic aldehyde or furane resin dipping 5 hours, and solidified 21 hours.
11, Vehicle Processing is to finished product.
12, secondary resin impregnation, according to the finished product working condition requirement, phenolic aldehyde or furane resin dipping 5 hours, and solidify and be finished product in 21 hours.
Embodiment three: the production method of carbon-iron composite material of the present invention adopts following processing step: its formula rate is counted by weight:
1, the preparation of iron powder additive:
Get 25 parts of iron powders, 8 parts of silane coupling agents (K577 solvent), 85 parts in biphenyl, add fully to stir in the stirring tank and close, 500 rev/mins of rotating speeds, stirring begins after 40 minutes to heat up under the room temperature, temperature rise to 140 ℃, add 70 parts of molten molten coal-tar pitch, molten molten coal-tar pitch temperature is at 150 ℃, and it is 30% that molten molten coal-tar pitch accounts for whole grog, continue to stir and intensification, temperature is 150 ℃, and the time needs 2.5 hours, makes iron powder additive mixing solutions.Described iron powder particle diameter is 35um.
2, grog preparation:
In mediating still, 200 liters add 8 parts of carbon black powders, 15 parts of Graphite Powder 99s, 85 parts of pitch coke powders are placed on mediates kneading in the still, starts simultaneously and mediates the still heating installation, kneading 1.5 hours, temperature adds 36 parts of iron powder additive mixing solutionss in the time of 150 ℃, iron powder accounts for 12% of whole carbon graphite powder summation, continue to stir, temperature is 180 ℃, and the time needs 3 hours, namely finishes the grog preparation.
3, grog rolls into the thick thin slice of 2mm after going out to mediate still while hot.
4, can wear into 200 purpose powders after rolling sheet cooling (temperature＜50 ℃).
5, get final product compression moulding behind the abrasive dust, pressed density 2.2g/cm3.
6, advance roasting in the stove, the beginning heat-up rate is 5 ℃/min, between 700 ℃～900 ℃ of temperature, slows down heat-up rate, and heat-up rate is 2 ℃/min, and later heat-up rate is 5 ℃/min, roasting to 1200 ℃, and once sintered density reaches 2.2g/cm3.
7, roasting product is carried out coal-tar pitch dipping, dipping time: 12 hours.
8, pickled product is carried out roasting again, the beginning heat-up rate is 5 ℃/min, between 700 ℃～900 ℃ of temperature, slows down heat-up rate, and heat-up rate is 2 ℃/min, and later heat-up rate is 5 ℃/min, roasting to 1200 ℃, and re-baking product density reaches 2.3g/cm
3
9, waste car.
10, resin impregnation, according to the finished product working condition requirement, phenolic aldehyde or furane resin dipping 6 hours, and solidified 24 hours.
11, Vehicle Processing is to finished product.
12, secondary resin impregnation, according to the finished product working condition requirement, phenolic aldehyde or furane resin dipping 6 hours, and solidify and be finished product in 24 hours.
Claims (2)
1. the production method of a carbon-iron composite material, it is characterized in that: adopt following processing step, its formula rate is counted by weight:
(1), the preparation of iron powder additive:
Get 10～25 parts of iron powders, 5～8 parts of silane coupling agents (K577 solvent), 67～85 parts in biphenyl, add fully to stir in the stirring tank and close, 400～500 rev/mins of rotating speeds, stir under the room temperature and begin after 30～40 minutes to heat up, temperature rise to 130 ℃～140 ℃, add 65～70 parts of molten molten coal-tar pitch, molten molten coal-tar pitch temperature is at 130～150 ℃, and it is 25～30% that molten molten coal-tar pitch accounts for whole grog, continue to stir and intensification, temperature is 140～150 ℃, and the time needs 2～2.5 hours, makes iron powder additive mixing solutions.
(2), grog preparation:
In mediating still, 200 liters add 5～8 parts of carbon black powders, 10～15 parts of Graphite Powder 99s, 67～85 parts of pitch coke powders are placed on mediates kneading in the still, starts simultaneously and mediates the still heating installation, kneading 1～1.5 hour, temperature adds 32～36 parts of iron powder additive mixing solutionss in the time of 130～150 ℃, iron powder accounts for 12% of whole carbon graphite powder summation, continue to stir, temperature is 160～180 ℃, and the time needs 2.5～3 hours, namely finishes the grog preparation.
(3), grog rolls into the thick thin slice of 1.5～2mm after going out to mediate still while hot.
(4), can wear into 150～200 purpose powders after rolling sheet cooling (temperature＜50 ℃).
(5), get final product compression moulding, pressed density 1.80～2.2g/cm3 behind the abrasive dust.
(6), advance roasting in the stove, the beginning heat-up rate is 4～5 ℃/min, in 700 ℃～900 ℃ scopes of temperature, slow down heat-up rate, heat-up rate is 1～2 ℃/min, and later heat-up rate is 4～5 ℃/min, roasting to 1100～1200 ℃, once sintered density reaches 1.8～2.2g/cm3.
(7), roasting product is carried out coal-tar pitch dipping, dipping time: 8～12 hours.
(8), pickled product is carried out roasting again, the beginning heat-up rate is 4～5 ℃/min, in 700 ℃～900 ℃ scopes of temperature, slow down heat-up rate, heat-up rate is 1～2 ℃/min, later on heat-up rate is 4～5 ℃/min, roasting to 1100～1200 ℃, and re-baking product density reaches 1.9～2.3g/cm
3
(9), waste car.
(10), resin impregnation, according to the finished product working condition requirement, phenolic aldehyde or furane resin dipping 4～6 hours, and solidifying 18～24 hours.
(11), Vehicle Processing is to finished product.
(12), the secondary resin impregnation, according to the finished product working condition requirement, phenolic aldehyde or furane resin dipping 4～6 hours, and solidify and be finished product in 18～24 hours.
2. the production method of carbon-iron composite material according to claim 1, it is characterized in that: described iron powder particle diameter is 15～35um.
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| CN2011102017817A CN102887510A (en) | 2011-07-19 | 2011-07-19 | Production method of carbon-iron composite material |
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| CN2011102017817A CN102887510A (en) | 2011-07-19 | 2011-07-19 | Production method of carbon-iron composite material |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544497A (en) * | 2009-04-24 | 2009-09-30 | 无锡市前洲电碳厂 | Production method for composite carbon graphite material |
| CN101550008A (en) * | 2009-04-24 | 2009-10-07 | 无锡市前洲电碳厂 | Production method of carbon-pottery composite material |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544497A (en) * | 2009-04-24 | 2009-09-30 | 无锡市前洲电碳厂 | Production method for composite carbon graphite material |
| CN101550008A (en) * | 2009-04-24 | 2009-10-07 | 无锡市前洲电碳厂 | Production method of carbon-pottery composite material |
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Application publication date: 20130123 |