CN103965828A - Graphite adhesive and preparation method thereof - Google Patents
Graphite adhesive and preparation method thereof Download PDFInfo
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- CN103965828A CN103965828A CN201410208863.8A CN201410208863A CN103965828A CN 103965828 A CN103965828 A CN 103965828A CN 201410208863 A CN201410208863 A CN 201410208863A CN 103965828 A CN103965828 A CN 103965828A
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- graphite
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- kneading
- caking agent
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 239000010439 graphite Substances 0.000 title claims abstract description 83
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 83
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000000853 adhesive Substances 0.000 title abstract 10
- 230000001070 adhesive effect Effects 0.000 title abstract 10
- 238000004898 kneading Methods 0.000 claims abstract description 38
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 22
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 22
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000005642 Oleic acid Substances 0.000 claims abstract description 22
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 22
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 22
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 22
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 22
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 22
- 239000008117 stearic acid Substances 0.000 claims abstract description 22
- 239000002006 petroleum coke Substances 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 238000002844 melting Methods 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 6
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 56
- 239000011295 pitch Substances 0.000 claims description 23
- 238000013467 fragmentation Methods 0.000 claims description 10
- 238000006062 fragmentation reaction Methods 0.000 claims description 10
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical group [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000005336 cracking Methods 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 2
- 239000004088 foaming agent Substances 0.000 abstract 2
- 239000004593 Epoxy Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 150000001721 carbon Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a graphite adhesive. The graphite adhesive consists of the following raw materials: pitch, graphite powder, petroleum coke powder, resin, stearic acid, a foaming agent and oleic acid. The invention also discloses a preparation method of the graphite adhesive. The method comprises the following steps: melting pitch; performing first mixing-kneading; adding resin and stearic acid for mixing-kneading; performing second mixing-kneading; adding graphite powder and petroleum coke powder for mixing-kneading; discharging from a kettle at the discharging temperature of 90+/-5 DEG C, cooling, and bagging for later use; breaking, i.e., breaking mixed raw materials; stirring, i.e., adding the foaming agent and the oleic acid and stirring the mixture, thereby obtaining the graphite adhesive; and if needing premolding, placing the prepared graphite adhesive into a mold for premolding. The graphite adhesive has the most outstanding characteristics that the graphite adhesive can be foamed within the temperature range of 100-200 DEG C to enlarge the adhesive surface, thereby firmly adhering graphite pieces effectively and splicing small-sized graphite pieces or simple-structure graphite pieces into a large-sized graphite piece or a complicated-structure graphite piece; the graphite adhesive can also be used for adhering graphite electrodes.
Description
Technical field
The present invention relates to a kind of caking agent, relate in particular to a kind of for bonding graphite caking agent and preparation method between graphite product.
Background technology
Graphite is a kind of allotropic substance of elemental carbon, and the periphery of each carbon atom links other three carbon atoms of work (arrangement mode is cellular multiple hexagons) with covalent bonds, forms covalent molecule.Because each carbon atom all can be emitted an electronics, those electronics can move freely, and therefore graphite belongs to electrical conductor.Graphite is the softest a kind of mineral wherein, and a main application of graphite is to produce refractory materials, comprises refractory brick, crucible, continuous casting powder, mold core, mold, washing composition and high temperature material.
Because graphite is of many uses, so relatively large, more complicated graphite finished product is generally combined by multiple less, better simply graphite products.Particularly graphite shaped piece, because its difficulty of processing is large, many large pieces and complex structure part at all cannot be one-body molded, are graphite product so need to first process multiple independently graphite members, then these assembling parts formed to graphite shaped piece together.
But there is no at present special graphite caking agent, so it is bonding to adopt common caking agent to carry out, its bonding stability is not ideal enough, haves much room for improvement.
Summary of the invention
The graphite caking agent and the preparation method that provide a kind of bonding stability high in order to address the above problem are just provided object of the present invention.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of graphite caking agent, comprises following raw material: pitch, Graphite Powder 99, petroleum coke powder, resin, stearic acid, whipping agent, oleic acid.
As preferably, graphite caking agent is made up of following raw material: pitch, Graphite Powder 99, petroleum coke powder, resin, stearic acid, whipping agent, oleic acid.
Preferably, softening temperature≤90 DEG C of described pitch, granularity≤the 0.075mm of described Graphite Powder 99, purity >=65.0%, granularity≤the 0.075mm of described petroleum coke powder, purity >=80.0%, described resin is epoxy resin 634, described stearic acid is industrial stearic acid 1801, and described whipping agent is sodium bicarbonate, and described oleic acid is the oleic acid of analytical pure rank.
Particularly, the mass parts of each raw material is: 100～110 parts of pitches, 30～35 parts of Graphite Powder 99s, 8～10 parts of petroleum coke powders, 2～3.2 parts of resins, 1.5～1.8 parts of stearic acid, 2～2.5 parts of whipping agents, 0.08～0.1 part of oleic acid.
As optimal selection, the mass parts of each raw material is: 105 parts of pitches, 33 parts of Graphite Powder 99s, 9 parts of petroleum coke powders, 2.85 parts of resins, 1.65 parts of stearic acid, 2.1 parts of whipping agents, 0.09 part of oleic acid.
A preparation method for graphite caking agent, comprises the following steps:
(1) pitch dissolves: use mid-temperature pitch, solution time is 300～350 minutes, melting temperature >=70 DEG C;
(2) kneading for the first time: add resin and stearic acid kneading, the kneading time is 25～35 minutes;
(3) kneading for the second time: add Graphite Powder 99 and petroleum coke powder kneading, the kneading time is 35～45 minutes;
(4) take the dish out of the pot: go out 90 ± 5 DEG C of pot temperatures, take the dish out of the pot cooling after, pack stand-by;
(5) fragmentation: step (4) gained compound is carried out to fragmentation, particle size after cracking≤4mm;
(6) stir: add whipping agent and oleic acid to stir, churning time is 15～25 minutes, obtains graphite caking agent; If desired premolding, is placed in die for molding by the graphite caking agent preparing.
Preferably, in described step (1), solution time is 330 minutes, melting temperature >=75 DEG C; In described step (2), the kneading time is 30 minutes; In described step (3), the kneading time is 40 minutes; In described step (6), churning time is 20 minutes.
Beneficial effect of the present invention is:
Graphite caking agent of the present invention, its distinguishing feature is in 100-200 DEG C of temperature range, to foam, and expands bonding plane, effectively cements graphite piece, by small-sized graphite piece or graphite piece simple in structure, is spliced into large-scale graphite piece or baroque graphite piece; This graphite caking agent also can be used for bonding Graphite Electrodes.In addition, the Graphite Powder 99 during this graphite caking agent is raw materials used is the useless substandard goods that charcoal element is produced, and has obtained effective utilization at this, thereby has reduced the waste of graphite material and repeated processing, and energy-conserving and environment-protective are had to active effect.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1:
Prepare by the following method graphite caking agent:
(1) get the raw materials ready: pitch: softening temperature≤90 DEG C, Graphite Powder 99: granularity≤0.075mm, purity >=65.0%, petroleum coke powder: granularity≤0.075mm, purity >=80.0%, epoxy resin 634, industry stearic acid 1801, sodium bicarbonate, the oleic acid of analytical pure rank;
(2) pitch dissolves: use 105 kilograms of mid-temperature pitches, solution time is 330 minutes, melting temperature >=75 DEG C;
(3) kneading for the first time: add 634 and 1.65 kilograms of industrial stearic acid kneadings of 2.85 kg epoxy, the kneading time is 30 minutes;
(4) kneading for the second time: add 33 kilograms of Graphite Powder 99s and petroleum coke powder kneading, the kneading time is 40 minutes;
(5) take the dish out of the pot: go out 90 ± 5 DEG C of pot temperatures, take the dish out of the pot cooling after, pack stand-by;
(6) fragmentation: step (5) gained compound is carried out to fragmentation, particle size after cracking≤4mm;
(7) stir: add 2.1 kilograms of whipping agents and 0.09 kilogram of oleic acid to stir, churning time is 20 minutes, obtains graphite caking agent; If desired premolding, is placed in die for molding by the graphite caking agent preparing.
Gained graphite caking agent should adopt following methods to use:
Be applied to while connecting graphite piece, graphite caking agent packed in the groove that is reserved in graphite piece abutting edge into tamping.The graphite piece of having spliced is heated to 250-300 DEG C, and graphite caking agent automatic foaming, is covered with bonding plane coking, thereby graphite piece is cemented.If graphite piece is used under 300 DEG C and above condition being heated to, the graphite piece that packs graphite caking agent into and spliced directly can be placed under regular service condition, graphite caking agent can be automatically bonding by graphite piece in the use procedure of graphite piece.
Be applied to while connecting Graphite Electrodes, can, at graphite electrode nipple (pin thread of male and female button-type electrode) processing putting hole, in hole, insert graphite caking agent tamping.Afterwards, connection electrode normal use, graphite caking agent can be brought into play bonding effect in Graphite Electrodes use procedure.
Embodiment 2:
Prepare by the following method graphite caking agent:
(1) get the raw materials ready: pitch: softening temperature≤90 DEG C, Graphite Powder 99: granularity≤0.075mm, purity >=65.0%, petroleum coke powder: granularity≤0.075mm, purity >=80.0%, epoxy resin 634, industry stearic acid 1801, sodium bicarbonate, the oleic acid of analytical pure rank;
(2) pitch dissolves: use double centner mid-temperature pitch, solution time is 300 minutes, melting temperature >=70 DEG C;
(3) kneading for the first time: add 634 and 1.5 kilograms of industrial stearic acid kneadings of 2 kg epoxy, the kneading time is 25 minutes;
(4) kneading for the second time: add 30 kilograms of Graphite Powder 99s and petroleum coke powder kneading, the kneading time is 35 minutes;
(5) take the dish out of the pot: go out 90 ± 5 DEG C of pot temperatures, take the dish out of the pot cooling after, pack stand-by;
(6) fragmentation: step (5) gained compound is carried out to fragmentation, particle size after cracking≤4mm;
(7) stir: add 2 kilograms of whipping agents and 0.08 kilogram of oleic acid to stir, churning time is 15 minutes, obtains graphite caking agent; If desired premolding, is placed in die for molding by the graphite caking agent preparing.
The performance of gained graphite caking agent is substantially the same manner as Example 1, and its using method is identical with embodiment 1.
Embodiment 3:
Prepare by the following method graphite caking agent:
(1) get the raw materials ready: pitch: softening temperature≤90 DEG C, Graphite Powder 99: granularity≤0.075mm, purity >=65.0%, petroleum coke powder: granularity≤0.075mm, purity >=80.0%, epoxy resin 634, industry stearic acid 1801, sodium bicarbonate, the oleic acid of analytical pure rank;
(2) pitch dissolves: use 110 kilograms of mid-temperature pitches, solution time is 350 minutes, melting temperature >=72 DEG C;
(3) kneading for the first time: add 634 and 1.8 kilograms of industrial stearic acid kneadings of 3.2 kg epoxy, the kneading time is 35 minutes;
(4) kneading for the second time: add 35 kilograms of Graphite Powder 99s and petroleum coke powder kneading, the kneading time is 5 minutes;
(5) take the dish out of the pot: go out 90 ± 5 DEG C of pot temperatures, take the dish out of the pot cooling after, pack stand-by;
(6) fragmentation: step (5) gained compound is carried out to fragmentation, particle size after cracking≤4mm;
(7) stir: add 2.5 kilograms of whipping agents and 0.1 kilogram of oleic acid to stir, churning time is 25 minutes, obtains graphite caking agent; If desired premolding, is placed in die for molding by the graphite caking agent preparing.
The performance of gained graphite caking agent is substantially the same manner as Example 1, and its using method is identical with embodiment 1.
Above-described embodiment is preferred embodiment of the present invention; it is not the restriction to technical solution of the present invention; as long as the technical scheme that can realize on the basis of above-described embodiment without creative work, all should be considered as falling within the scope of the rights protection of patent of the present invention.
Claims (7)
1. a graphite caking agent, is characterized in that: comprise following raw material: pitch, Graphite Powder 99, petroleum coke powder, resin, stearic acid, whipping agent, oleic acid.
2. graphite caking agent according to claim 1, is characterized in that: be made up of following raw material: pitch, Graphite Powder 99, petroleum coke powder, resin, stearic acid, whipping agent, oleic acid.
3. graphite caking agent according to claim 2, it is characterized in that: softening temperature≤90 DEG C of described pitch, granularity≤the 0.075mm of described Graphite Powder 99, purity >=65.0%, granularity≤the 0.075mm of described petroleum coke powder, purity >=80.0%, described resin is epoxy resin 634, described stearic acid is industrial stearic acid 1801, and described whipping agent is sodium bicarbonate, and described oleic acid is the oleic acid of analytical pure rank.
4. according to the graphite caking agent described in claim 1,2 or 3, it is characterized in that: the mass parts of each raw material is: 100～110 parts of pitches, 30～35 parts of Graphite Powder 99s, 8～10 parts of petroleum coke powders, 2～3.2 parts of resins, 1.5～1.8 parts of stearic acid, 2～2.5 parts of whipping agents, 0.08～0.1 part of oleic acid.
5. graphite caking agent according to claim 4, is characterized in that: the mass parts of each raw material is: 105 parts of pitches, 33 parts of Graphite Powder 99s, 9 parts of petroleum coke powders, 2.85 parts of resins, 1.65 parts of stearic acid, 2.1 parts of whipping agents, 0.09 part of oleic acid.
6. a preparation method for the graphite caking agent as described in claim 1,2 or 3, is characterized in that: comprise the following steps:
(1) pitch dissolves: use mid-temperature pitch, solution time is 300～350 minutes, melting temperature >=70 DEG C;
(2) kneading for the first time: add resin and stearic acid kneading, the kneading time is 25～35 minutes;
(3) kneading for the second time: add Graphite Powder 99 and petroleum coke powder kneading, the kneading time is 35～45 minutes;
(4) take the dish out of the pot: go out 90 ± 5 DEG C of pot temperatures, take the dish out of the pot cooling after, pack stand-by;
(5) fragmentation: step (4) gained compound is carried out to fragmentation, particle size after cracking≤4mm;
(6) stir: add whipping agent and oleic acid to stir, churning time is 15～25 minutes, obtains graphite caking agent; If desired premolding, is placed in die for molding by the graphite caking agent preparing.
7. the preparation method of graphite caking agent according to claim 6, is characterized in that: in described step (1), solution time is 330 minutes, melting temperature >=75 DEG C; In described step (2), the kneading time is 30 minutes; In described step (3), the kneading time is 40 minutes; In described step (6), churning time is 20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410208863.8A CN103965828B (en) | 2014-05-16 | 2014-05-16 | A kind of graphite caking agent and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410208863.8A CN103965828B (en) | 2014-05-16 | 2014-05-16 | A kind of graphite caking agent and preparation method |
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| Publication Number | Publication Date |
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| CN103965828A true CN103965828A (en) | 2014-08-06 |
| CN103965828B CN103965828B (en) | 2016-04-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085320A (en) * | 2016-06-16 | 2016-11-09 | 宜兴新威利成耐火材料有限公司 | Aluminum electrolyzing cell used composite brick bonding agent and preparation method thereof |
| CN106159623A (en) * | 2014-12-31 | 2016-11-23 | 上海摩腾碳制品有限公司 | A kind of wind-driven generator Special carbon brush and preparation method thereof |
| CN109439004A (en) * | 2018-11-07 | 2019-03-08 | 平顶山东方碳素股份有限公司 | High temperature modified coal tar pitch and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101282602A (en) * | 2007-04-06 | 2008-10-08 | 南通江东碳素股份有限公司 | Method for sticking connection joint of graphite electrode for making steel |
| CN102533215A (en) * | 2010-12-10 | 2012-07-04 | 比亚迪股份有限公司 | Electrode connector slurry and preparation method thereof |
-
2014
- 2014-05-16 CN CN201410208863.8A patent/CN103965828B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101282602A (en) * | 2007-04-06 | 2008-10-08 | 南通江东碳素股份有限公司 | Method for sticking connection joint of graphite electrode for making steel |
| CN102533215A (en) * | 2010-12-10 | 2012-07-04 | 比亚迪股份有限公司 | Electrode connector slurry and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159623A (en) * | 2014-12-31 | 2016-11-23 | 上海摩腾碳制品有限公司 | A kind of wind-driven generator Special carbon brush and preparation method thereof |
| CN106159623B (en) * | 2014-12-31 | 2018-10-09 | 上海摩腾碳制品有限公司 | A kind of wind-driven generator Special carbon brush and preparation method thereof |
| CN106085320A (en) * | 2016-06-16 | 2016-11-09 | 宜兴新威利成耐火材料有限公司 | Aluminum electrolyzing cell used composite brick bonding agent and preparation method thereof |
| CN109439004A (en) * | 2018-11-07 | 2019-03-08 | 平顶山东方碳素股份有限公司 | High temperature modified coal tar pitch and preparation method thereof |
| CN109439004B (en) * | 2018-11-07 | 2021-05-25 | 平顶山东方碳素股份有限公司 | High-temperature modified coal pitch and preparation method thereof |
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| CN103965828B (en) | 2016-04-27 |
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Effective date of registration: 20231108 Address after: Office of the Management Committee of Ganmei Industrial Park, No. 8-1 Jinxiu Road, Xiuwen Town, Dongpo District, Meishan City, Sichuan Province, 620000 yuan Patentee after: Meishan Fangdarongguang Carbon Co.,Ltd. Address before: 610000 Yidu Middle Road, National Chengdu Economic and Technological Development Zone (Longquanyi District), Longquanyi District, Chengdu, Sichuan Province Patentee before: CHENGDU RONGGUANG CARBON Co.,Ltd. |
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