CN104985184A - A hard alloy extrusion forming intermediate waste material recovering process - Google Patents
A hard alloy extrusion forming intermediate waste material recovering process Download PDFInfo
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- CN104985184A CN104985184A CN201510454001.8A CN201510454001A CN104985184A CN 104985184 A CN104985184 A CN 104985184A CN 201510454001 A CN201510454001 A CN 201510454001A CN 104985184 A CN104985184 A CN 104985184A
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- dimethylbenzene
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Abstract
The invention provides a hard alloy extrusion forming intermediate waste material recovering process. The process comprises the steps that: a, ethyl alcohol cleaning is performed; b, primary recovery catalyst soaking is performed, wherein the primary recovery catalyst is a mixed liquor prepared from xylene and colza oil and the primary recovery catalyst used for every kilogram of recovery materials contains 400-600ml of xylene and 40-60ml of colza oil; c, a secondary recovery catalyst is placed in the primary recovery catalyst, soaking is performed continuously and mixing is performed once every hour by using a stainless steel rod, wherein the secondary recovery catalyst is a mixed liquor prepared from polystyrene, paraffin wax and xylene and the secondary recovery catalyst used for every kilogram of the recovery materials contains 1-3 grams of polystyrene, 0.5-1.5 grams of paraffin wax, and 150-250ml of xylene; d, a mixer is used for mixing; extrusion forming is performed by using a screw extruder; f, natural drying is performed; g, sintering is performed. The process requires no repeated adding of a moulding agent and can effectively guarantee the performance of hard ally finished products.
Description
Technical field
The present invention relates to carbide alloy forming processing technology field, particularly relate to the recovery process of the extruded middle waste material of a kind of carbide alloy.
Background technology
For existing carbide alloy extrusion forming process, it generally includes following processing step, is specially: 1, carbide powder and cobalt powder are poured in proportion in ball mill and carry out being pulverized and mixed process; 2, the compound after ball mill process is fed through in vibrating dryer or spray dryer and carries out drying process; 3, be fed through in vibration screening machine by the compound after drying process and carry out filtration treatment, the powder that particle diameter is larger is filtered; 4, compound is poured in mixer, and adds forming agent in compound, start mixer and compound and forming agent be uniformly mixed, to prepare extrusion billet; 5, extrusion billet is fed through in screw extruder carries out extruded processing; 6, extruded profile carries out drying process under natural conditions; 7, dried extruded profile is put into vacuum sintering furnace and carry out half sintering processing, be prepared into hard alloy piece semi-finished product with the forming agent got rid of in extruded profile; 8, carbide alloy semi-finished product processing; 9, the carbide alloy semi-finished product after processing are put into again to vacuum sintering furnace carry out vacuum-sintering process, to be prepared into hard alloy finished product.
In above-mentioned carbide alloy extrusion forming process, mixed process, extruded process and dry run can produce waste material (reclaimed materials); Prior art generally adopts following recovery process to process above-mentioned waste material, be specially: waste material is carried out half sintering and gets rid of forming agent, then carry out ball milling processing again, after ball milling processing, complete recycling according to above-mentioned steps 2,3,4,5,6,7,8,9 again.
But in the waste recovery process of reality, above-mentioned technique needs to repeat to add forming agent, and the waste material after recycling can cause negative effect to the performance of hard alloy finished product.
Summary of the invention
The object of the invention is to provide a kind of hard to add up to the recovery process of extruded middle waste material for the deficiencies in the prior art, this hard adds up to the recovery process of extruded middle waste material to add forming agent without the need to repeating, and effectively can ensure the performance of hard alloy finished product.
For achieving the above object, the present invention is achieved through the following technical solutions.
A recovery process for the extruded middle waste material of carbide alloy, includes following processing step, is specially:
A, reclaimed materials put into alcohol and clean;
B, the reclaimed materials after alcohol washes put into first recovery catalyst and carry out immersion treatment, soak time is 40-50 hour, soaking temperature is 30-40 degree Celsius, the mixed liquor of first recovery catalyst for being made up of dimethylbenzene and rapeseed oil, containing 400-600 milliliter dimethylbenzene and 40-60 milliliter rapeseed oil in the first recovery catalyst that per kilogram reclaimed materials uses;
C, secondary recovery agent is put into first recovery catalyst, and continue soak and stainless steel bar per hour stir once, soak time is 10-15 hour, soaking temperature is 30-40 degree Celsius, the mixed liquor of secondary recovery agent for being made up of polystyrene, paraffin, dimethylbenzene, containing 1-3 gram of polystyrene, 0.5-1.5 gram paraffin and 150-250 milliliter dimethylbenzene in the secondary recovery agent that per kilogram reclaimed materials uses;
D, reclaimed materials complete for immersion treatment is poured in mixer and stirs, to prepare extrusion billet;
E, extrusion billet is fed through in screw extruder and carries out extruded processing;
F, extruded profile carry out drying process under natural conditions;
G, dried extruded profile put into vacuum sintering furnace and carry out sintering processes, to be prepared into hard alloy piece.
Further, the recovery process of the extruded middle waste material of this carbide alloy, includes following processing step, is specially:
A, reclaimed materials put into alcohol and clean;
B, the reclaimed materials after alcohol washes put into first recovery catalyst and carry out immersion treatment, soak time is 48 hours, soaking temperature is 35 degrees Celsius, the mixed liquor of first recovery catalyst for being made up of dimethylbenzene and rapeseed oil, containing 500 milliliters of dimethylbenzene and 50 milliliters of rapeseed oils in the first recovery catalyst that per kilogram reclaimed materials uses;
C, secondary recovery agent is put into first recovery catalyst, and continue soak and stainless steel bar per hour stir once, soak time is 12 hours, soaking temperature is 35 degrees Celsius, the mixed liquor of secondary recovery agent for being made up of polystyrene, paraffin, dimethylbenzene, containing 2 grams of polystyrene, 1 gram of paraffin and 200 milliliters of dimethylbenzene in the secondary recovery agent that per kilogram reclaimed materials uses;
D, reclaimed materials complete for immersion treatment is poured in mixer and stirs, to prepare extrusion billet;
E, extrusion billet is fed through in screw extruder and carries out extruded processing;
F, extruded profile carry out drying process under natural conditions;
G, dried extruded profile put into vacuum sintering furnace and carry out sintering processes, to be prepared into hard alloy piece.
Beneficial effect of the present invention is: the recovery process of the extruded middle waste material of a kind of carbide alloy of the present invention, and it includes following processing step: a, alcohol washes; B, first recovery catalyst soak, and the mixed liquor of first recovery catalyst for being made up of dimethylbenzene and rapeseed oil, containing 400-600 milliliter dimethylbenzene and 40-60 milliliter rapeseed oil in the first recovery catalyst that per kilogram reclaimed materials uses; C, secondary recovery agent is put into first recovery catalyst, and continue soak and stainless steel bar per hour stir once, the mixed liquor of secondary recovery agent for being made up of polystyrene, paraffin, dimethylbenzene, containing 1-3 gram of polystyrene, 0.5-1.5 gram paraffin and 150-250 milliliter dimethylbenzene in the secondary recovery agent that per kilogram reclaimed materials uses; D, mixer stir; E, screw extruder are extruded; F, natural drying; G, sintering processes.Designed by above-mentioned processing step, the present invention adds forming agent without the need to repeating, and effectively can ensure the performance of hard alloy finished product.
Detailed description of the invention
Below in conjunction with concrete embodiment, the present invention will be described.
Embodiment one, the recovery process of the extruded middle waste material of a kind of carbide alloy, includes following processing step, is specially:
A, reclaimed materials put into alcohol and clean;
B, the reclaimed materials after alcohol washes put into first recovery catalyst and carry out immersion treatment, soak time is 48 hours, soaking temperature is 35 degrees Celsius, the mixed liquor of first recovery catalyst for being made up of dimethylbenzene and rapeseed oil, containing 500 milliliters of dimethylbenzene and 50 milliliters of rapeseed oils in the first recovery catalyst that per kilogram reclaimed materials uses;
C, secondary recovery agent is put into first recovery catalyst, and continue soak and stainless steel bar per hour stir once, soak time is 12 hours, soaking temperature is 35 degrees Celsius, the mixed liquor of secondary recovery agent for being made up of polystyrene, paraffin, dimethylbenzene, containing 2 grams of polystyrene, 1 gram of paraffin and 200 milliliters of dimethylbenzene in the secondary recovery agent that per kilogram reclaimed materials uses;
D, reclaimed materials complete for immersion treatment is poured in mixer and stirs, to prepare extrusion billet;
E, extrusion billet is fed through in screw extruder and carries out extruded processing;
F, extruded profile carry out drying process under natural conditions;
G, dried extruded profile put into vacuum sintering furnace and carry out sintering processes, to be prepared into hard alloy piece.
Designed by above-mentioned processing step, the recovery process of the extruded middle waste material of carbide alloy of the present embodiment one adds forming agent without the need to repeating, and effectively can ensure the performance of hard alloy finished product.
Embodiment two, the recovery process of the extruded middle waste material of a kind of carbide alloy, includes following processing step, is specially:
A, reclaimed materials put into alcohol and clean;
B, the reclaimed materials after alcohol washes put into first recovery catalyst and carry out immersion treatment, soak time is 40 hours, soaking temperature is 30 degrees Celsius, the mixed liquor of first recovery catalyst for being made up of dimethylbenzene and rapeseed oil, containing 400 milliliters of dimethylbenzene and 40 milliliters of rapeseed oils in the first recovery catalyst that per kilogram reclaimed materials uses;
C, secondary recovery agent is put into first recovery catalyst, and continue soak and stainless steel bar per hour stir once, soak time is 10 hours, soaking temperature is 30 degrees Celsius, the mixed liquor of secondary recovery agent for being made up of polystyrene, paraffin, dimethylbenzene, containing 1 gram of polystyrene, 0.5 gram of paraffin and 150 milliliters of dimethylbenzene in the secondary recovery agent that per kilogram reclaimed materials uses;
D, reclaimed materials complete for immersion treatment is poured in mixer and stirs, to prepare extrusion billet;
E, extrusion billet is fed through in screw extruder and carries out extruded processing;
F, extruded profile carry out drying process under natural conditions;
G, dried extruded profile put into vacuum sintering furnace and carry out sintering processes, to be prepared into hard alloy piece.
Designed by above-mentioned processing step, the recovery process of the extruded middle waste material of carbide alloy of the present embodiment two adds forming agent without the need to repeating, and effectively can ensure the performance of hard alloy finished product.
Embodiment three, the recovery process of the extruded middle waste material of a kind of carbide alloy, includes following processing step, is specially:
A, reclaimed materials put into alcohol and clean;
B, the reclaimed materials after alcohol washes put into first recovery catalyst and carry out immersion treatment, soak time is 50 hours, soaking temperature is 40 degrees Celsius, the mixed liquor of first recovery catalyst for being made up of dimethylbenzene and rapeseed oil, containing 600 milliliters of dimethylbenzene and 60 milliliters of rapeseed oils in the first recovery catalyst that per kilogram reclaimed materials uses;
C, secondary recovery agent is put into first recovery catalyst, and continue soak and stainless steel bar per hour stir once, soak time is 15 hours, soaking temperature is 40 degrees Celsius, the mixed liquor of secondary recovery agent for being made up of polystyrene, paraffin, dimethylbenzene, containing 3 grams of polystyrene, 1.5 grams of paraffin and 250 milliliters of dimethylbenzene in the secondary recovery agent that per kilogram reclaimed materials uses;
D, reclaimed materials complete for immersion treatment is poured in mixer and stirs, to prepare extrusion billet;
E, extrusion billet is fed through in screw extruder and carries out extruded processing;
F, extruded profile carry out drying process under natural conditions;
G, dried extruded profile put into vacuum sintering furnace and carry out sintering processes, to be prepared into hard alloy piece.
Designed by above-mentioned processing step, the recovery process of the extruded middle waste material of carbide alloy of the present embodiment three adds forming agent without the need to repeating, and effectively can ensure the performance of hard alloy finished product.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (2)
1. a recovery process for the extruded middle waste material of carbide alloy, is characterized in that, include following processing step, be specially:
A, reclaimed materials put into alcohol and clean;
B, the reclaimed materials after alcohol washes put into first recovery catalyst and carry out immersion treatment, soak time is 40-50 hour, soaking temperature is 30-40 degree Celsius, the mixed liquor of first recovery catalyst for being made up of dimethylbenzene and rapeseed oil, containing 400-600 milliliter dimethylbenzene and 40-60 milliliter rapeseed oil in the first recovery catalyst that per kilogram reclaimed materials uses;
C, secondary recovery agent is put into first recovery catalyst, and continue soak and stainless steel bar per hour stir once, soak time is 10-15 hour, soaking temperature is 30-40 degree Celsius, the mixed liquor of secondary recovery agent for being made up of polystyrene, paraffin, dimethylbenzene, containing 1-3 gram of polystyrene, 0.5-1.5 gram paraffin and 150-250 milliliter dimethylbenzene in the secondary recovery agent that per kilogram reclaimed materials uses;
D, reclaimed materials complete for immersion treatment is poured in mixer and stirs, to prepare extrusion billet;
E, extrusion billet is fed through in screw extruder and carries out extruded processing;
F, extruded profile carry out drying process under natural conditions;
G, dried extruded profile put into vacuum sintering furnace and carry out sintering processes, to be prepared into hard alloy piece.
2. the recovery process of the extruded middle waste material of a kind of carbide alloy according to claim 1, is characterized in that, include following processing step, be specially:
A, reclaimed materials put into alcohol and clean;
B, the reclaimed materials after alcohol washes put into first recovery catalyst and carry out immersion treatment, soak time is 48 hours, soaking temperature is 35 degrees Celsius, the mixed liquor of first recovery catalyst for being made up of dimethylbenzene and rapeseed oil, containing 500 milliliters of dimethylbenzene and 50 milliliters of rapeseed oils in the first recovery catalyst that per kilogram reclaimed materials uses;
C, secondary recovery agent is put into first recovery catalyst, and continue soak and stainless steel bar per hour stir once, soak time is 12 hours, soaking temperature is 35 degrees Celsius, the mixed liquor of secondary recovery agent for being made up of polystyrene, paraffin, dimethylbenzene, containing 2 grams of polystyrene, 1 gram of paraffin and 200 milliliters of dimethylbenzene in the secondary recovery agent that per kilogram reclaimed materials uses;
D, reclaimed materials complete for immersion treatment is poured in mixer and stirs, to prepare extrusion billet;
E, extrusion billet is fed through in screw extruder and carries out extruded processing;
F, extruded profile carry out drying process under natural conditions;
G, dried extruded profile put into vacuum sintering furnace and carry out sintering processes, to be prepared into hard alloy piece.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106180723A (en) * | 2016-08-24 | 2016-12-07 | 龙岩永发粉末冶金有限公司 | A kind of hard alloy extrusion process of natural drying |
| CN110181064A (en) * | 2019-05-23 | 2019-08-30 | 深圳精匠云创科技有限公司 | The stamping method of WC-Co pre-burning reclaimed materials |
| CN114636304A (en) * | 2022-04-27 | 2022-06-17 | 合肥八维七度新材料科技有限公司 | Energy-concerving and environment-protective type metal powder drying system that colds pressing that can recycle |
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| JP2000072430A (en) * | 1998-08-28 | 2000-03-07 | Wada Kogyo Kk | Repowdering technique for spent sintered hard alloy part by tin impregnation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106180723A (en) * | 2016-08-24 | 2016-12-07 | 龙岩永发粉末冶金有限公司 | A kind of hard alloy extrusion process of natural drying |
| CN110181064A (en) * | 2019-05-23 | 2019-08-30 | 深圳精匠云创科技有限公司 | The stamping method of WC-Co pre-burning reclaimed materials |
| CN114636304A (en) * | 2022-04-27 | 2022-06-17 | 合肥八维七度新材料科技有限公司 | Energy-concerving and environment-protective type metal powder drying system that colds pressing that can recycle |
| CN114636304B (en) * | 2022-04-27 | 2023-10-24 | 合肥八维七度新材料科技有限公司 | Energy-saving environment-friendly metal powder cold pressing and drying system capable of being recycled |
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Application publication date: 20151021 |