CN1039749A - A kind of inlaid type wear-resisting spare parts and manufacture method thereof - Google Patents
A kind of inlaid type wear-resisting spare parts and manufacture method thereof Download PDFInfo
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- CN1039749A CN1039749A CN 89106062 CN89106062A CN1039749A CN 1039749 A CN1039749 A CN 1039749A CN 89106062 CN89106062 CN 89106062 CN 89106062 A CN89106062 A CN 89106062A CN 1039749 A CN1039749 A CN 1039749A
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- prefabricated component
- abrasion
- spherula
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Abstract
A kind of inlaid type wear-resisting spare parts and manufacture method thereof, be pressed into abrasion-proof prefabricated component again after it is characterized in that adopting fine-grained alloy powder to make the spherula that granularity is 0.15-2.0mm, when cast base metals liquation, alloy powder can be completely melted, and is metallurgical binding completely between formed wear body and the base metals.
This novel wear part compares with existing inlaid type wear-resisting spare parts, and its outstanding advantage is that manufacturing equipment is simple, in conjunction with firmly, improves service life more than 1 times.
Description
The present invention relates to a kind of on goods, in the goods, casting around the goods, these goods become the some of product.
Existing inlaid type wear-resisting spare parts is by base metals and be embedded in wear-resisting pre-prefabricated component in the base metals in conjunction with forming.Its manufacture method comprises the following steps:
1, makes block abrasion-proof prefabricated component.The material that this prefabricated component is used has carbide alloy, high chromium white foundry goods and ordinary white cast iron etc. usually, adopts powder metallurgic method or cast form, makes cuboid or other shapes.
2, clean preform surfaces.
3, the prefabricated component after will cleaning is fixed on the privileged site in the casting mold cavity, its fixed form can with the iron nail of certain size or other bar-shaped metals be inserted in the molding sand after prefabricated component welds mutually, prefabricated component does not produce mobile when making it to pour into a mould the mother metal liquation.
4, cast base metals liquation is formed on the wear part that abrasion-proof prefabricated component is contained at position easy to wear after solidifying.
5, according to quality of parent material and working condition requirement foundry goods is carried out corresponding heat treatment.
The part made from said method has abrasion resistance preferably, but also has some defective, mainly contains:
1, material is the abrasion-proof prefabricated component of carbide alloy, must adopt powder metallurgic method to make, and is that the abrasion-proof prefabricated component of material must adopt electro-smelting with the high-chromium white cast iron, and equipment investment is bigger, and manufacturing cost is also higher, is unfavorable for wide popularization and application.
2, abrasion-proof prefabricated component must be cleaned out and preheating on the surface before use, if there is the improper and oxidation of greasy dirt or preheating on the surface, and casting flaws such as base metals and the easy generation in the prefabricated component place of combining slag inclusion pore when then pouring into a mould.
3, combining between solid-state abrasion-proof prefabricated component and the mother metal liquation is difficult to reach metallurgical binding completely, produces sometimes in the foundry goods use that abrasion-proof prefabricated component peels off or cracked phenomenon, and product quality be cannot say for sure card.
Task of the present invention be to provide a kind of manufacturing equipment simple, in conjunction with firmly, the inlaid type wear-resisting spare parts and the manufacture method thereof of long service life.
Description of drawings:
Fig. 1 is the spherula of being made up of alloy powder, flux, binding agent, A-spherula among the figure, A1-alloy powder, A2-flux and binding agent.
Fig. 2 is block abrasion-proof prefabricated component structural representation, B-abrasion-proof prefabricated component among the figure, B1-metal support, A-spherula, B2-binding agent.
Fig. 3 is the M-M cutaway view of block abrasion-proof prefabricated component B, and mark is identical with Fig. 2 among the figure.
Fig. 4 is for making the casting mold figure of inlaid type wear-resisting spare parts, 1-sandbox among the figure, 2-die cavity, 3-down gate, 4-ingate, 5-rising head, 6-gas outlet, 7-overflow launder, B-abrasion-proof prefabricated component.
Fig. 5 is the described excavator bucket teeth of embodiment, C-mother metal among the figure, D-wear body.
Fig. 6 is the N-N of a working face place cutaway view, and mark is identical with Fig. 5 among the figure.
Be described in detail content of the present invention below in conjunction with description of drawings.
Inlaid type wear-resisting spare parts of the present invention is that a kind of alloy powder that is melted in the abrasion-proof prefabricated component by base metals C liquation forms, and is metallurgical binding completely between wear body D and the base metals C.
The manufacture method of inlaid type wear-resisting spare parts of the present invention comprises: make spherula by alloy powder, flux and binding agent, the abrasion-proof prefabricated component that constitutes of metal support, spherula and binding agent by oven dry, moulding and abrasion-proof prefabricated component is fixed in the die cavity, casting mother metal liquation, heat treating castings.
Abrasion-proof prefabricated component adopts following technology to make:
A, as shown in Figure 1, the employing granularity is that the borax mixing of alloy powder A1 adding (percentage by weight) 2~5% of 0.006~0.05mm shakeouts, spray an amount of binding agent, as proportion is that waterglass/concentration of 1.08~1.15 is 0.4~0.7% poly-vinyl alcohol solution, sways to form spherula A and the oven dry that granularity is 0.15~2.0mm.With waterglass is the spherula A that binding agent is made, and its bake out temperature is 250~270 ℃, and drying time is 2~3 hours; With the polyvinyl alcohol is the spherula A that binding agent is made, and its bake out temperature is 180~210 ℃, and drying time is 2~3 hours.
B, as shown in Figure 2, abrasion-proof prefabricated component B spherula A and the binding agent B2 after by metal support B1, oven dry constitutes.The iron wire that metal support such as size are suitable, select the mould of making abrasion-proof prefabricated component B for use, metal support B1 is arranged on the central axis of mould, add powdered phenol-formaldehyde resin, 0.2~0.5% black tropine and proper amount of solvent such as the alcohol that (with respect to the percentage by weight of spherula A) 10~16%, proportion are 1.20~1.35% waterglass/4~10% with the spherula A after the oven dry, mixing is poured in the mould compacting into and is made block abrasion-proof prefabricated component B, takes out also oven dry.With waterglass is that the abrasion-proof prefabricated component B that binding agent is made must be incubated about 1 hour down at 50~90 ℃, is warmed up to about 3 hours of 280~300 ℃ of insulations again; The abrasion-proof prefabricated component B that adds powdered phenol-formaldehyde resin, black tropine and alcohol making must be incubated about 1 hour down at 50~90 ℃, is warmed up to 220~250 ℃ of insulations 1~2 hour again.When making abrasion-proof prefabricated component B, preferably spherula A is used by its granule size stepping.
Fig. 3 is the M-M profile of abrasion-proof prefabricated component B, and mark is identical with Fig. 2 among the figure.
Fig. 4 is for making the casting mold figure of inlaid type wear-resisting spare parts, utilize metal support B1 abrasion-proof prefabricated component B to be fixed on the suitable part of die cavity, make abrasion-proof prefabricated component B residing status in die cavity consistent, have good abrasion resistance with the working face that guarantees wear part with wear body residing status in wear part.The mother metal liquation is poured into a mould in the mode of routine, according to quality of parent material and operating mode foundry goods is heat-treated.
This programme relatively has following outstanding advantage with prior art:
1, combining between wear body D and the base metals C is metallurgical binding completely, and has good distributing homogeneity and compactness in wear body D inner materials.And existing abrasion-proof prefabricated component must be cleaned out and preheating before using, and oxidation when then pouring into a mould the mother metal liquation, can produce the slag inclusion pore if there is greasy dirt on the surface or preheating is improper, easily produces when foundry goods uses and peels off with cracked.
2, need not to adopt powder metallurgic method to make the carbide alloy abrasion-proof prefabricated component, only can obtain corresponding prefabricated component, can reduce the abrasion-proof prefabricated component manufacturing cost significantly with the suitable preparation of alloy powder.
3, can adopt fine-grained alloy powder, the alloy powder that is evenly distributed in the abrasion-proof prefabricated component is easily melted by the base metals liquation, because thin alloy powder fusing point is lower, thereby the smelting temperature of mother metal liquation is not had specific (special) requirements.
4, made wear part can improve more than 1 times its average life.
Embodiment:
Use the solution of the present invention and make 2 cubic metres of excavator bucket teeths, mother metal is a magnesium iron, and Fig. 5 is the bucket tooth structural representation, and Fig. 6 is the N-N of a working face place cutaway view, adopts 6 30 * 15 * 160mm abrasion-proof prefabricated component B.Making prefabricated component, to adopt granularity be 0.006~0.05mmCr-Fe powder, 2300 grams, adds borax 70 grams, and mixing shakeouts, and sprays an amount of concentration and be 0.4% poly-vinyl alcohol solution, and mixing sways and forms granularity is the spherula of 1.5mm, 200 ℃ of oven dry 2 hours down.Get the spherula after the oven dry, adding 350 gram proportions is 1.326 gram per centimeters
3, modulus is 3.1 waterglass mixing, metallic support body and function diameter is the iron wire of 2mm, the abrasion-proof prefabricated component B that makes is 300 ℃ of oven dry 3 hours down, place the casting mold ad-hoc location, pour into a mould 1330 ℃ of magnesium iron liquations, solidify the back and be incubated 1.5 hours down, again 380 ℃ of following isothermal hardening 1.5 hours at 900 ℃.Bucket tooth with the said method manufacturing improves 1.5 times than the bucket tooth that contains alloy block average life.
Claims (4)
1, a kind of inlaid type wear-resisting spare parts and manufacture method thereof is characterized in that this wear part is to be formed by the alloy powder in the base metals C liquation fusing abrasion-proof prefabricated component, is metallurgical binding completely between wear body D and the base metals C.
2, a kind of inlaid type wear-resisting spare parts and manufacture method thereof comprise abrasion-proof prefabricated component and are fixed in the die cavity, cast base metals liquation, and heat treatment is characterized in that: described abrasion-proof prefabricated component B adopts following technology to make:
A, employing granularity are that the borax mixing of alloy powder A1 adding (percentage by weight) 2~5% of 0.006~0.05mm shakeouts, spray an amount of binding agent, as proportion is that waterglass/concentration of 1.08~1.15 is 0.4~0.7% poly-vinyl alcohol solution, sway and form spherula A and the oven dry that granularity is 0.15~2.0mm
B, by metal support B1, the oven dry after spherula A and binding agent B2 make block abrasion-proof prefabricated component B, metal support B1 is arranged on the central axis of mould, adds powdered phenol-formaldehyde resin, 0.2~0.5% black tropine and proper amount of solvent that (with respect to the percentage by weight of spherula A) 10~16%, proportion are 1.20~1.35% waterglass/4~10% such as alcohol mixing with the spherula A of oven dry and pours that compacting is shaped and oven dry in the mould into.
3, according to a kind of inlaid type wear-resisting spare parts and the manufacture method thereof of claim 2, it is characterized in that: be that binding agent is made as spherula A with waterglass, its bake out temperature is 250~270 ℃, and drying time is 2~3 hours; With the polyvinyl alcohol is the spherula A that binding agent is made, and its bake out temperature is 180~210 ℃, and drying time is 2~3 hours.
4, according to a kind of inlaid type wear-resisting spare parts and the manufacture method thereof of claim 2, it is characterized in that: be that binding agent is made as abrasion-proof prefabricated component B with waterglass, must be incubated about 1 hour down, be warmed up to about 3 hours of 280~300 ℃ of insulations again at 50~90 ℃; Add the abrasion-proof prefabricated component B that powdered phenol-formaldehyde resin, black tropine and alcohol are made, must be incubated about 1 hour down, be warmed up to 220~250 ℃ of insulations 1~2 hour again at 50~90 ℃.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 89106062 CN1039749A (en) | 1989-07-19 | 1989-07-19 | A kind of inlaid type wear-resisting spare parts and manufacture method thereof |
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CN 89106062 CN1039749A (en) | 1989-07-19 | 1989-07-19 | A kind of inlaid type wear-resisting spare parts and manufacture method thereof |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105728695A (en) * | 2014-12-09 | 2016-07-06 | 北京有色金属研究总院 | Preparation method of high-orientation heat conduction material of composite structure |
CN107635699A (en) * | 2015-06-23 | 2018-01-26 | 哈里伯顿能源服务公司 | To the prediffusion mandrel coating for strengthening the bonding force between metal component and compounding ingredients provided |
-
1989
- 1989-07-19 CN CN 89106062 patent/CN1039749A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105728695A (en) * | 2014-12-09 | 2016-07-06 | 北京有色金属研究总院 | Preparation method of high-orientation heat conduction material of composite structure |
CN107635699A (en) * | 2015-06-23 | 2018-01-26 | 哈里伯顿能源服务公司 | To the prediffusion mandrel coating for strengthening the bonding force between metal component and compounding ingredients provided |
US10717129B2 (en) | 2015-06-23 | 2020-07-21 | Halliburton Energy Services, Inc. | Pre-diffused mandrel coating to provide enhanced bonding between metallic and composite components |
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