CN106216601B - The casting method of ore crusher cone class casting - Google Patents

The casting method of ore crusher cone class casting Download PDF

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Publication number
CN106216601B
CN106216601B CN201610606164.8A CN201610606164A CN106216601B CN 106216601 B CN106216601 B CN 106216601B CN 201610606164 A CN201610606164 A CN 201610606164A CN 106216601 B CN106216601 B CN 106216601B
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Prior art keywords
thermal center
rising head
casting
layer rising
die cavity
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CN106216601A (en
Inventor
郭小强
刘军
黄敬
郭小利
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Kocel Steel Foundry Co Ltd
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Kocel Steel Foundry Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/088—Feeder heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

A kind of casting method of ore crusher cone class casting, including moulding, first layer rising head is set, second layer rising head is set, first subregion chill is set, second subregion chill is set, the present invention reanalyses thermal center distribution map, for the first thermal center, second thermal center, 3rd thermal center sets one layer of rising head, for the 4th thermal center, one layer of rising head is set, and subregion chill is set between rising head, so as to effectively solve the problems, such as easily to produce shrinkage porosite at casting thermal center, reduce inner chamber subsidy, inner chamber gouge need not be carried out, reduce workload, improve casting quality, solves the problems, such as core cavity scab simultaneously.

Description

The casting method of ore crusher cone class casting
Technical field
The present invention relates to ore casting steel casting technical field, more particularly to a kind of casting of ore crusher cone class casting Make method.
Background technology
Ore crusher cone class casting as circular cone type ore crusher core link position, belong to core stress and Wear part, Requirements of Nondestructive Testing are strict, it is desirable to can not have the casting flaws such as slag inclusion, shrinkage porosite, crackle, the casting structure is as schemed 1st, shown in Fig. 2.
During ore crusher cone class cast casting, casting die cavity 100 includes small axis hole 101, big axis hole 102, casting side Wall, small axis hole 101 connect with big axis hole 102, and the aperture of small axis hole 101 is less than the aperture of big axis hole 102, by the shape knot of casting Structure determines, four thermal centers are distributed with the side wall of casting die cavity 100, are followed successively by the first thermal center 103, the second thermal center from top to bottom 104th, the 3rd thermal center 105, the 4th thermal center 106, as shown in Figure 3.
Thermal center is in process of setting, and casting internal ratio surrounding metal solidifies slow node or regional area, these portions Position solidification is slow, easily produces shrinkage defect.
Existing casting process scheme be designed as large end face upward, small end face process program directed downwardly, on big axis hole 102 Side sets main feeding head 107, and the riser neck for connecting main feeding head 107 is set in big axis hole 102, is set inside die cavity Subsidy 108, as shown in figure 4, this scheme has the disadvantage that：
1st, casting thermal center is more, can not ensure solve the problems, such as casting circumferencial direction shrinkage porosite by above-mentioned rising head and subsidy scheme, Casting process still has shrinkage defect；
2nd, core cavity sets subsidy, and postorder cleaning gouge processing is difficult, and the visual quality of casting is poor；
3rd, large end face sets rising head, inner chamber to set subsidy to cause inner chamber narrow and small, and liquid steel temperature is high, and core radiating surface is small, casting The scab of part inner chamber is serious.
The content of the invention
Be necessary to propose it is a kind of by change modeling scheme, be laid out again rising head ore crusher cone class casting casting Make method.
A kind of casting method of ore crusher cone class casting, including：
Moulding：Moulding is carried out to casting die cavity, the casting die cavity that moulding obtains is the taper die cavity surrounded by cavity lateral, The taper die cavity meet small end up, large end face down, open up the axis hole of insertion in the center of the taper die cavity, Small axis hole is opened up in the small end face of taper die cavity, big axis hole is opened up in the large end face of taper die cavity, in the side wall of casting die cavity Four thermal centers are distributed, are followed successively by the first thermal center, the second thermal center, the 3rd thermal center, the 4th thermal center from top to bottom；
First layer rising head is set：The bottom of the small axis hole is blocked, by the cavity lateral of small axis hole and the bottom of closure First layer rising head is formed, to carry out feeding to the 4th thermal center by first layer rising head；
Second layer rising head is set：At least three second layer rising heads are circumferentially set in the side wall of taper die cavity, The second layer rising head is connected by riser neck with cavity lateral, and the riser neck covers first heat in vertical direction Section, the second thermal center, the 3rd thermal center, to be mended by second layer rising head to above-mentioned first thermal center, the second thermal center, the 3rd thermal center Contracting；
First subregion chill is set：Some first subregion chills are circumferentially set in the side wall of taper die cavity, The first subregion chill is arranged between first layer rising head and second layer rising head, spacing distance between adjacent first subregion chill For 30~50mm, so that first layer rising head and second layer rising head form subregion feeding, first layer rising head is avoided to second layer rising head Carry out feeding；
Second subregion chill is set：Some second subregion chills, second subregion are set in the side wall of taper die cavity Chill is arranged between two adjacent second layer rising heads, is lacked with reducing the coincidence feeding between two adjacent second layer rising heads Fall into.
The present invention reanalyses, divides thermal center distribution map, and setting one layer for the first thermal center, the second thermal center, the 3rd thermal center emits Mouthful, for the 4th thermal center, one layer of rising head is set, and subregion chill is set between rising head, so as to effectively solve at casting thermal center The problem of easily producing shrinkage porosite, reduce inner chamber subsidy, without carrying out inner chamber gouge, reduce workload, improve casting quality, Solves the problems, such as core cavity scab simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of the ore crusher cone class casting.
Fig. 2 is Fig. 1 sectional view.
Fig. 3 is the thermal center distribution schematic diagram of the ore crusher cone class casting.
Fig. 4 is the casting method schematic diagram of prior art.
Fig. 5 is the cast structure schematic diagram of the casting method of the ore crusher cone class casting of the expression present invention.
Fig. 6 is Fig. 5 top view.
Fig. 7 is Fig. 5 upward view.
Fig. 8 is Fig. 6 cross section structure diagram along A-A.
In figure：Taper die cavity 100, small axis hole 101, big axis hole 102, the first thermal center 103, the second thermal center 104, the 3rd thermal center 105th, the 4th thermal center 106, main feeding head 107, subsidy 108, first layer rising head 10, second layer rising head 20, riser neck 21, first Subregion chill 30, the second subregion chill 40, the 3rd chill 50, the 4th chill 60, subsidy 70.
Embodiment
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached Figure is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, common for this area For technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Referring to Fig. 5 to Fig. 8, the embodiments of the invention provide a kind of casting method of ore crusher cone class casting, bag Include：
Moulding：Moulding is carried out to casting die cavity, the casting die cavity that moulding obtains is the taper die cavity surrounded by cavity lateral 100, taper die cavity 100 meet small end up, large end face down, open up the axle of insertion in the center of taper die cavity 100 Hole, small axis hole 101 is opened up in the small end face of taper die cavity 100, is opened up big axis hole 102 in the large end face of taper die cavity 100, is being cast In the side wall of part die cavity be distributed four thermal centers, be followed successively by from top to bottom the first thermal center 103, the second thermal center 104, the 3rd thermal center 105, 4th thermal center 106；
First layer rising head 10 is set：The bottom of small axis hole 101 is blocked, by cavity lateral and the closure of small axis hole 101 First layer rising head 10 is formed on bottom, to carry out feeding to the 4th thermal center 106 by first layer rising head 10；After the completion of casting, only need The small axis hole 101 of the casting processing, car goes out the endoporus of small axis hole 101, and this avoid the small bottom of axis hole 101 The 4th thermal center 106 near portion is in the shrinkage defect occurred during casting.
Second layer rising head 20 is set：At least three second layers are circumferentially set in the side wall of taper die cavity 100 Rising head 20, second layer rising head 20 are connected by riser neck 21 with cavity lateral, and riser neck 21 covers the first heat in vertical direction Save the 103, second thermal center 104, the 3rd thermal center 105, with by second layer rising head 20 to above-mentioned first thermal center 103, the second thermal center 104th, the 3rd thermal center 105 carries out feeding；
First subregion chill 30 is set：Some first subregions are circumferentially set in the side wall of taper die cavity 100 Chill 30, the first subregion chill 30 are arranged between first layer rising head 10 and second layer rising head 20, adjacent first subregion chill 30 Between spacing distance be 30~50mm so that first layer rising head 10 and second layer rising head 20 form subregion feeding, avoid first layer Rising head 10 carries out feeding to second layer rising head 20；
Second subregion chill 40 is set：Some second subregion chills 40 are set in the side wall of taper die cavity 100, second point Area's chill 40 is arranged between two adjacent second layer rising heads 20, to reduce the weight between two adjacent second layer rising heads 20 Close feeding defect.Because the circumferencial direction of the side wall in casting mold die cavity sets three second layer rising heads 20, the adjacent second layer emits Feeding distance is longer between mouth 20, and feeding is formed between two adjacent second layer rising heads 20 and overlaps area, and area is overlapped in this feeding Easily occur overlapping feeding shrinkage defect, so overlapping area herein sets the second subregion chill 40, so that three second layer rising heads 20 carry out subregion solidification feeding in circumferencial direction, avoid overlapping area's appearance coincidence feeding shrinkage defect.
Further, first layer rising head 10 is open riser, and M10：M106=1.2, M10 are the modulus of first layer rising head 10, M106 is the modulus of the 4th thermal center 106.Open riser relies on gravity and atmospheric pressure feeding, can be saved under the premise of feeding is sufficient Molten steel is saved, so being designed as M10：M106=1.2.
Further, second layer rising head 20 is blind riser, and M20：M104=1.4, M20 are the modulus of second layer rising head 20, M104 is the modulus of the second thermal center 104.The modulus of second layer rising head 20 calculates determination according to the modulus of the second thermal center 104, because It is located at the lower section of the second thermal center 104 for the first thermal center 103, forms feeding gradient, so meets that the feeding of the second thermal center 104 is inevitable The abundant feeding of the first thermal center 103 is disclosure satisfy that, and the modulus of the 3rd thermal center 105 is less than the modulus of the second thermal center 104, so Under the premise of the modulus feeding for meeting the second thermal center 104, the first thermal center 103 and the 3rd thermal center 105 necessarily can abundant feeding, and Second layer rising head 20 is arranged to blind riser, is compared to open riser, and blind riser relies on gravity nature feeding, in order to which feeding is abundant, needs More molten steel are reserved, so being designed as M20：M104=1.4.
Further, the height of upper end of the riser neck 21 of second layer rising head 20 in vertical direction and the 3rd thermal center 105 are flat Together, so that second layer rising head 20 is the 105 abundant feeding of the 3rd thermal center.
Further, to make second layer rising head 20 carry out abundant feeding to the 3rd thermal center 105, in the big die cavity of axis hole 102 3rd chill 50 is circumferentially set on wall, and the 3rd chill 50 is interior concordant with the 3rd thermal center 105 in the horizontal direction, to reduce The modulus of 3rd thermal center 105, and then second layer rising head 20 is carried out abundant feeding to the 3rd thermal center 105.
Further, to make second layer rising head 20 carry out abundant feeding to the first thermal center 103, in the rising head of second layer rising head 20 Subsidy 70 is set in the side wall of the die cavity of the lower section of neck 21, and subsidy 70 is to be connected between the second thermal center 104 and the first thermal center 103 Passage so that the Feeding channel between the second thermal center 104 and the first thermal center 103 is unobstructed.
Further, further to make second layer rising head 20 carry out abundant feeding to the first thermal center 103, in the big type of axis hole 102 4th chill 60 is circumferentially set on the inwall of chamber, the 4th chill 60 is interior concordant with the first thermal center 103 in the horizontal direction, To reduce the modulus of the first thermal center 103, and then second layer rising head 20 is set to carry out abundant feeding to the first thermal center 103.
Step in present invention method can be sequentially adjusted, merged and deleted according to actual needs.
Above disclosure is only preferred embodiment of present invention, can not limit the right model of the present invention with this certainly Enclose, one of ordinary skill in the art will appreciate that all or part of flow of above-described embodiment is realized, and will according to right of the present invention Made equivalent variations are sought, still falls within and invents covered scope.

Claims (7)

  1. A kind of 1. casting method of ore crusher cone class casting, it is characterised in that including：
    Moulding：Moulding is carried out to casting die cavity, the casting die cavity that moulding obtains is the taper die cavity surrounded by cavity lateral, described Taper die cavity meet small end up, large end face down, open up the axis hole of insertion in the center of the taper die cavity, boring The small end face of shape die cavity opens up small axis hole, opens up big axis hole in the large end face of taper die cavity, is distributed in the side wall of casting die cavity Four thermal centers, sequentially consist of the first thermal center, the second thermal center, the 3rd thermal center, the 4th thermal center；
    First layer rising head is set：The bottom of the small axis hole is blocked, formed by the cavity lateral of small axis hole and the bottom of closure First layer rising head, to carry out feeding to the 4th thermal center by first layer rising head；
    Second layer rising head is set：At least three second layer rising heads are circumferentially set in the side wall of taper die cavity, it is described Second layer rising head is connected by riser neck with cavity lateral, and the riser neck covers first thermal center, in vertical direction Two thermal centers, the 3rd thermal center, to carry out feeding to above-mentioned first thermal center, the second thermal center, the 3rd thermal center by second layer rising head；
    First subregion chill is set：Some first subregion chills are circumferentially set in the side wall of taper die cavity, it is described First subregion chill is arranged between first layer rising head and second layer rising head, and spacing distance is 30 between adjacent first subregion chill ~50mm, so that first layer rising head and second layer rising head form subregion feeding, first layer rising head is avoided to carry out second layer rising head Feeding；
    Second subregion chill is set：Some second subregion chills, the second subregion chill are set in the side wall of taper die cavity It is arranged between two adjacent second layer rising heads, to reduce the coincidence feeding defect between two adjacent second layer rising heads.
  2. 2. the casting method of ore crusher cone class casting as claimed in claim 1, it is characterised in that the first layer emits Mouthful it is open riser, and M10：M106=1.2, M10 are the modulus of first layer rising head, and M106 is the modulus of the 4th thermal center.
  3. 3. the casting method of ore crusher cone class casting as claimed in claim 1, it is characterised in that the second layer emits Mouthful it is blind riser, and M20：M104=1.4, M20 are the modulus of second layer rising head, and M104 is the modulus of the second thermal center.
  4. 4. the casting method of ore crusher cone class casting as claimed in claim 1, it is characterised in that the second layer emits The height of upper end of the riser neck of mouth in vertical direction is concordant with the 3rd thermal center, so that second layer rising head is that the 3rd thermal center is abundant Feeding.
  5. 5. the casting method of ore crusher cone class casting as claimed in claim 1, it is characterised in that in the big axis hole 3rd chill is circumferentially set on the inwall of die cavity, and the 3rd chill is interior in the horizontal direction to put down with the 3rd thermal center Together, to reduce the modulus of the 3rd thermal center, and then second layer rising head is made to carry out abundant feeding to the 3rd thermal center.
  6. 6. the casting method of ore crusher cone class casting as claimed in claim 1, it is characterised in that in second layer rising head Riser neck lower section die cavity side wall on set subsidy, it is described subsidy for be connected to second thermal center and the first thermal center it Between passage so that the Feeding channel between the second thermal center and the first thermal center is unobstructed.
  7. 7. the casting method of ore crusher cone class casting as claimed in claim 1, it is characterised in that in the big axis hole 4th chill is circumferentially set on the inwall of die cavity, and the 4th chill is interior in the horizontal direction to put down with first thermal center Together, to reduce the modulus of the first thermal center, and then second layer rising head is made to carry out abundant feeding to the first thermal center.
CN201610606164.8A 2016-07-28 2016-07-28 The casting method of ore crusher cone class casting Active CN106216601B (en)

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CN111889622B (en) * 2020-06-22 2022-02-22 共享铸钢有限公司 Casting method of compressor shell

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