CN1883850A - Casting method for magnetic plate blank used on machine tools and dedicated casting mold structure therefor - Google Patents
Casting method for magnetic plate blank used on machine tools and dedicated casting mold structure therefor Download PDFInfo
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- CN1883850A CN1883850A CN 200510040755 CN200510040755A CN1883850A CN 1883850 A CN1883850 A CN 1883850A CN 200510040755 CN200510040755 CN 200510040755 CN 200510040755 A CN200510040755 A CN 200510040755A CN 1883850 A CN1883850 A CN 1883850A
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Abstract
The present invention relates to a casting method for induced magnetic plate blank for machine tool use. The invention also relates to special casting mould structure using this casting method. Induced magnetic plate blank produced by this method and casting mould structure, structure of the steel-shell inner wall is compact, fire-coat will not appears on surface of the metal binding course. The method includes following steps: a. alkali cleaning; b. acid cleaning; c. borax treatment; d. smelting; e. casting, characterized in that: before casting, steel piece is put on the bottom board. Gasket, riser and ring cover board are sequentially located on top of the steel piece to form casting mould structure. The casting mould structure is put into heating-furnace for firing heating, the cover board is taken off after discharge, and then casting is carried out. Said casting mould structure, which comprising steel piece, and the impression is encircled formed by said steel piece, and its bottom board, upper gasket and riser sleeve, characterized in that: there is a cover board on the outlet capping of the riser sleeve, and said cover board is equipped with an air-vent.
Description
(1) technical field
The present invention relates to the casting method of magnetic plate blank used on machine tools, the invention still further relates to the special-purpose casting die structure of answering magnetic plate blank used casting.
(2) background technology
The machine tools magnetic sheet is a kind of baroque composite casting, adopts static pouring procedure manufacturing usually.Its detailed process is as follows: each part of steel part and metal mold through alkali cleaning, scour without sediment motion, pickling, once more scour without sediment motion, borax handle and series of process step process such as insulation after, steel part is placed the chassis, described steel part top press-fits cover plate, riser sleeve successively, then begins to pour into a mould.Because casting die structure heats in high temperature furnace; the upper end is opened wide; the inner chamber of steel part exposes fully in high-temperature furnace gas; though the binder course surface is through deoiling surface treatments such as decontamination and brushing borax protective layer; but because heating-up temperature is higher than the fusing point of borax; in heating process; the borax on binder course surface under the effect of high-temperature furnace gas, be melted gradually and volatilize and lose its protection effect; just binder course produces oxide skin under the effect of high-temperature furnace gas; like this should be magnetic plate blank used after roughing; shaken a little, two kinds of materials will separate.
(3) summary of the invention
At existing technology make should be magnetic plate blank used; because casting die structure heats in high temperature furnace; the upper end is opened wide; the inner chamber of steel part exposes fully in high-temperature furnace gas; the borax on binder course surface under the effect of high-temperature furnace gas, be melted gradually and volatilize and lose its protection effect; binder course produces oxide skin under the effect of high-temperature furnace gas; like this should be magnetic plate blank used after roughing; shaken a little; two kinds of shortcomings that material can separate; the invention provides the casting method of magnetic plate blank used on machine tools; by this process make should be magnetic plate blank used, steel part interior wall construction compactness, the surface of metal bonding layer oxide skin can not occur; for this reason, the present invention also provides the special-purpose casting die structure of casting of magnetic plate blank used on machine tools.
The casting method of magnetic plate blank used on machine tools, it may further comprise the steps:
A, alkali cleaning
Place the aqueous solution of the NaOH of 20-30% to boil 15-25 minute steel part, use the clear water outwash behind the outwash;
B, pickling
To place the aqueous solution of 40-50%HCL to soak through the steel part of a step process 25-35 minute, take out back clear water outwash;
C, borax are handled
To place the borax soln of 9-11% to soak taking-up after 1.5-2.5 minute through the steel part of b step process, place baking oven to dry, oven temperature 200-300 degree centigrade, again 40% borax soln is applied to steel piece surface, place baking oven to dry once more, oven temperature 200-300 degree centigrade.
D, melting
Smelting copper alloy under the temperature of 1150-1250 Celsius, smelting time 25-35 minute;
E, cast
Molten good copper water is removed impurity, pour into a mould then;
It is characterized in that: before cast, earlier steel part is placed base plate, the top of described steel part is pressed with packing ring, riser sleeve, cover plate successively, form casting die structure, place heating furnace to heat casting die structure, heating-up temperature is 1000-1100 degree centigrade, and be 18-22 minute heat time heating time, take the cover plate of casting die structure after coming out of the stove off, pour into a mould then.
Use the special-purpose casting die structure of above-mentioned processing method: it comprises steel part, the base plate of described steel part and its bottom with and packing ring, the riser sleeve on top surround die cavity, it is characterized in that: the outlet capping of described riser sleeve has cover plate, and described cover plate is provided with blow vent.
Technology among employing the present invention and special-purpose casting die structure are made should be magnetic plate blank used; owing to add a cover plate at the top of riser sleeve; during HTHP; mold cavity surface is in closed state substantially; raising along with heating-up temperature; air in the die cavity is expanded by heating and pressure increase gradually; impel inner chamber gas constantly from the venthole of cover plate, to discharge; the outer high-temperature furnace gas of die cavity can not enter in the die cavity simultaneously; therefore; there is not the erosion of high-temperature furnace gas in the die cavity; so the borax layer on the faying face can not be melted and volatilize; it is not oxidized to continue to play a part the protection faying face; after copper alloy solution pours into die cavity; two kinds of constantly diffusions mutually of metallic molecule; make steel part combine very firmly with copper alloy; thereby the casting method and the special-purpose casting die structure of existing magnetic plate blank used on machine tools have been avoided; because casting die structure heats in high temperature furnace; the upper end is opened wide; the inner chamber of steel part exposes fully in high-temperature furnace gas; in heating process; the borax on binder course surface under the effect of high-temperature furnace gas, be melted gradually and volatilize and lose its protection effect; binder course produces oxide skin under the effect of high-temperature furnace gas; like this should be magnetic plate blank used after roughing; shaken two kinds of shortcomings that material can separate a little.
(4) description of drawings
Fig. 1 is a process chart of the present invention;
Fig. 2 is the structural representation of special-purpose casting die structure among the present invention.
(5) specific embodiment
See Fig. 2, special-purpose casting die structure among the present invention, it comprises steel part 5, the base plate 6 of steel part 5 and its bottom with and packing ring 4, the riser sleeve 3 on top surround die cavity, the outlet capping of riser sleeve 3 has cover plate 2, cover plate 2 is provided with blow vent 1.Steel part 5 among Fig. 2 is a revolved section.Below in conjunction with Fig. 1 technical process of the present invention is described:
Claims (2)
1, the casting method of magnetic plate blank used on machine tools, it may further comprise the steps:
A, alkali cleaning
Place the aqueous solution of the NaOH of 20-30% to boil 15-25 minute steel part, use the clear water outwash behind the outwash;
B, pickling
To place the aqueous solution of 40-50%HCL to soak through the steel part of a step process 25-35 minute, take out back clear water outwash;
C, borax are handled
To place the borax soln of 9-11% to soak taking-up after 1.5-2.5 minute through the steel part of b step process, place baking oven to dry, oven temperature 200-300 degree centigrade, again 40% borax soln is applied to steel piece surface, place baking oven to dry once more, oven temperature 200-300 degree centigrade.
D, melting
Smelting copper alloy under the temperature of 1150-1250 Celsius, smelting time 25-35 minute;
E, cast
Molten good copper water is removed impurity, pour into a mould then;
It is characterized in that: before cast, earlier steel part is placed base plate, the top of described steel part is pressed with packing ring, riser sleeve, cover plate successively, form casting die structure, place heating furnace to heat casting die structure, heating-up temperature is 1000-1100 degree centigrade, and be 18-22 minute heat time heating time, take the cover plate of casting die structure after coming out of the stove off, pour into a mould then.
2, the special-purpose casting die structure of the casting method of magnetic plate blank used on machine tools, it comprises steel part, the base plate of described steel part and its bottom with and packing ring, the riser sleeve on top surround die cavity, it is characterized in that: the outlet capping of described riser sleeve has cover plate, and described cover plate is provided with blow vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510040755 CN1883850A (en) | 2005-06-22 | 2005-06-22 | Casting method for magnetic plate blank used on machine tools and dedicated casting mold structure therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510040755 CN1883850A (en) | 2005-06-22 | 2005-06-22 | Casting method for magnetic plate blank used on machine tools and dedicated casting mold structure therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1883850A true CN1883850A (en) | 2006-12-27 |
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| CN 200510040755 Pending CN1883850A (en) | 2005-06-22 | 2005-06-22 | Casting method for magnetic plate blank used on machine tools and dedicated casting mold structure therefor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195157B (en) * | 2007-12-08 | 2010-06-02 | 沂源县源通机械有限公司 | Technique for processing alloying material of steel and copper |
| CN105414534A (en) * | 2016-01-27 | 2016-03-23 | 遵义航天新力精密铸锻有限公司 | Steel-copper bimetal casting processing technology |
| CN108326259A (en) * | 2018-01-20 | 2018-07-27 | 中北大学 | A method of improving steel-copper solid-liquid composite casting interface bond strength |
| CN109570443A (en) * | 2017-09-28 | 2019-04-05 | 山东亿和机械装备有限公司 | A kind of casting technique of large-size horizontal machining center bed casting full mold evaporative pattern |
-
2005
- 2005-06-22 CN CN 200510040755 patent/CN1883850A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195157B (en) * | 2007-12-08 | 2010-06-02 | 沂源县源通机械有限公司 | Technique for processing alloying material of steel and copper |
| CN105414534A (en) * | 2016-01-27 | 2016-03-23 | 遵义航天新力精密铸锻有限公司 | Steel-copper bimetal casting processing technology |
| CN109570443A (en) * | 2017-09-28 | 2019-04-05 | 山东亿和机械装备有限公司 | A kind of casting technique of large-size horizontal machining center bed casting full mold evaporative pattern |
| CN109570443B (en) * | 2017-09-28 | 2020-07-28 | 山东亿和机械装备有限公司 | Casting process of full-mold lost foam of large horizontal machining center lathe bed casting |
| CN108326259A (en) * | 2018-01-20 | 2018-07-27 | 中北大学 | A method of improving steel-copper solid-liquid composite casting interface bond strength |
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