WO2013147348A1 - Method for hybrid vacuum casting rear cylinder for compressor - Google Patents

Method for hybrid vacuum casting rear cylinder for compressor Download PDF

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Publication number
WO2013147348A1
WO2013147348A1 PCT/KR2012/002384 KR2012002384W WO2013147348A1 WO 2013147348 A1 WO2013147348 A1 WO 2013147348A1 KR 2012002384 W KR2012002384 W KR 2012002384W WO 2013147348 A1 WO2013147348 A1 WO 2013147348A1
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WO
WIPO (PCT)
Prior art keywords
space
overflow
runner
compressor
rear cylinder
Prior art date
Application number
PCT/KR2012/002384
Other languages
French (fr)
Korean (ko)
Inventor
이상규
김재근
정양주
Original Assignee
주식회사 지알켐
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Application filed by 주식회사 지알켐 filed Critical 주식회사 지알켐
Publication of WO2013147348A1 publication Critical patent/WO2013147348A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B22D15/02—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor of cylinders, pistons, bearing shells or like thin-walled objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Definitions

  • the present invention relates to a rear cylinder vacuum casting molded product for a compressor and a rear cylinder vacuum casting method for a compressor, and more particularly, to a vacuum casting molded product and a vacuum casting method which are most suitable for producing a compressor rear cylinder by casting.
  • a typical automotive air conditioning system consists of four main components: an expansion valve, an evaporator, a compressor, and a condenser.
  • the expansion valve receives and throttles a liquid refrigerant of high temperature and high pressure and turns it into a liquid refrigerant of low temperature and low pressure and sends it to the evaporator.
  • the evaporator functions to evaporate the low temperature and low pressure refrigerant to generate cold air by the heat of evaporation.
  • die casting fills the cavity of the mold with molten metal of 650 °C or higher, and then pressurizes the piston using the power of the hydraulic cylinder connected to the injection machine to maintain the inside of the cavity at high pressure until solidification is completed.
  • a compressor which is a component of a vehicle air conditioner system, is driven by an engine, and compresses the low-temperature / low-pressure gaseous refrigerant discharged from the evaporator into a high-temperature / high-pressure gaseous refrigerant and sends it to the condenser, and the condenser is discharged from the compressor.
  • the refrigerant is cooled and condensed into a liquid refrigerant having a high temperature and high pressure.
  • Prior art 3 relates to a compressor cylinder for an automobile air conditioner, and a technique related to a die casting method for a general compressor cylinder is disclosed.
  • a casting method and a casting method suitable for a compressor component such as a front head, a rear head, a rear cylinder, and the like are disclosed. Has not been disclosed.
  • the prior art 4 relates to a die casting mold apparatus for casting a rear cylinder for a compressor, and only discloses the structure of a general casting die.
  • the prior art 4 discloses a casting method and a casting method suitable for a rear cylinder for a compressor. none.
  • Korean Patent Publication No. 2004-0006869 discloses only a noise reduction air conditioner compressor structure, and does not disclose a casting method and a casting method suitable for a compressor component such as a front head, a rear head, a rear cylinder, and the like.
  • the present invention has been made to solve the shortcomings of the prior art, and after the various design changes, trial and error, and simulation to produce the rear cylinder for the compressor by casting to minimize the generation of bubbles by vacuum casting and partial pressure technology. It is also an object of the present invention to provide a rear cylinder vacuum casting molded part for a compressor and a rear cylinder vacuum casting method for a compressor having a runner and an overflow shape design optimized to be most suitable for manufacturing by casting.
  • Vacuum casting method of the rear cylinder for a compressor of the present invention for solving such a problem is to maintain a vacuum in the mold;
  • the molten metal is injected in a state in which gravity acts in the direction of the main body space, the second runner space, and the first runner space.
  • the rear cylinder vacuum casting method for a compressor according to the present invention has the following advantages.
  • FIG. 1 is a perspective view of a rear cylinder for a compressor according to the present invention.
  • FIG. 2 is a perspective view of a preferred embodiment of a rear cylinder vacuum casting molded article for a compressor according to the present invention.
  • FIG. 2 is a perspective view of a preferred embodiment of a rear cylinder vacuum casting molded article for a compressor according to the present invention.
  • FIG 3 is a front view of a preferred embodiment of a rear cylinder vacuum casting molded article for a compressor according to the present invention.
  • Figure 4 is a perspective view of a preferred embodiment of the rear cylinder vacuum casting molded article for a compressor according to the present invention from another direction.
  • FIG. 5 is a rear perspective view of a preferred embodiment of a rear cylinder vacuum casting molded product for a compressor according to the present invention
  • Figure 6 is a flow chart of a preferred embodiment of the rear cylinder vacuum casting method for a compressor according to the present invention.
  • 7 (a) and 7 (b) are plan views of a mold of the rear cylinder vacuum casting method for a compressor according to the present invention.
  • FIG 8 to 11 is a view simulating the filling of the rear cylinder vacuum casting molded product for the compressor according to the invention over time in the mold.
  • 12 (a) and 12 (b) are diagrams simulating that bubbles in the rear cylinder vacuum casting molded product for the compressor are isolated.
  • FIG. 1 is a perspective view of a rear cylinder 1 for a compressor.
  • the rear cylinder for the compressor has a shaft bore (5) is formed in the center to couple the rotary shaft (not shown).
  • a plurality of piston bores 8 into which pistons are inserted outside the shaft bore 5 are formed at equal intervals.
  • a flesh is formed between the shaft bore 5 and the piston bore 8.
  • the rear cylinder vacuum casting molded product 10 for a compressor according to the present invention includes a biscuit 20.
  • the shape of the biscuit 20 is a cylindrical shape having a low height, and the top surface 21 of the biscuit is flat.
  • the diameter of the upper surface 21 of the biscuit is formed to be smaller than the diameter of the rear 22 of the biscuit.
  • the first runner part 30 is connected to the rear 22 of the biscuit.
  • the first runner part 30 is formed at a predetermined length vertically upwardly in more detail vertically from the rear 22 of the biscuit.
  • One end 31 of the first runner part is connected to the rear 22 of the biscuit, and the other end 32 of the first runner part is connected to the second runner part 35 described later.
  • the second runner part 35 branches into two.
  • the second runner part 35 branched into two forms the second runner part left 36 and the second runner part right 37.
  • a space 23 is formed between the left side and the right side of the second runner portion between the left side 36 of the second runner portion and the right side 37 of the second runner portion.
  • One end 38 on the left side of the second runner portion and one end 39 on the right side of the second runner portion are connected to the other end 32 of the first runner portion.
  • the middle portion of the left side 36 of the second runner portion is connected obliquely to the other end 40 on the left side of the second runner portion.
  • the middle portion of the right side 37 of the second runner portion is connected obliquely to the other end 41 on the right side of the second runner portion.
  • the other end 40 on the left side of the second runner part and the other end 41 on the right side of the second runner part are connected to the main body 50 to be described later, and more specifically, to the front lower end 51 of the main body.
  • a plurality of piston bores 8 and a single shaft bore 5 is formed, the overall shape is a single shaft bore 5 is formed in the center, the shaft bore ( 5)
  • a plurality of piston bores 8 having radially equal intervals are formed around the upper portion 55 of the main body to which the first overflow portion 110 and the muffler 60 are connected to each other have a sharp shape.
  • the main body 50 has a circular shape as a whole.
  • the diameter of the shaft bore 5 is formed smaller than the piston bore 8.
  • the other end 40 on the left side of the second runner part and the other end 41 on the right side of the second runner part are connected to the main body 50, and more particularly, to the front lower end 51 of the main body. do.
  • the muffler 60 is connected to the main body 50, and more specifically, connected to the upper portion 55 of the main body.
  • a space 65 is formed inside the muffler 60, and a protrusion 70 is formed at the right side 61 of the muffler.
  • the protruding portion 70 has a hollow circular portion 75 is formed laterally.
  • One end 71 of the protrusion is connected to the right side 61 of the muffler.
  • a portion 73 extending obliquely from the rear 72 of the protrusion is formed.
  • the first overflow part 110 is connected to the muffler 60.
  • the first overflow part 110 is connected to the left front side of the muffler 60.
  • the shape of the first overflow part 110 is as follows.
  • the part connected to the front left side of the muffler 60 is called the first part 111 of the first overflow part.
  • One end 112 of the first part of the first overflow part is connected to the front left side of the muffler 60 and protrudes toward the front left side of the muffler 60.
  • the upper surface of the first portion 111 of the first overflow part is rounded.
  • the first portion 111 of the first overflow part has a larger cross-sectional area of a portion connected to the front left side of the muffler 60, and the more protruding toward the front left side of the muffler 60, that is, the first portion of the first overflow part. It is directed to the other end 113 and has a shape in which the cross-sectional area thereof is reduced.
  • the other end 113 of the first part of the first overflow part is connected to the second part 115 of the first overflow part.
  • the shape of the second part 115 of the first overflow part has a rounded corner and a rectangular pillar shape having a low height as a whole.
  • the cross-sectional area of the lower surface of the second portion 115 of the first overflow portion is formed to be larger than the cross-sectional area of the upper surface of the second portion 115 of the first overflow portion.
  • One end 116 of the second part of the first overflow part is connected to the other end 113 of the first part of the first overflow part.
  • a third portion 118 of the first overflow portion is formed vertically upward from the other end 117 of the second portion of the first overflow portion.
  • the overall shape of the third portion 118 of the first overflow part has a constant cross-sectional area in the longitudinal direction and has a low height, and a round is formed on an upper surface of the third part 118 of the first overflow part. have.
  • One end 119 of the third part of the first overflow part is connected to the other end 117 of the second part of the first overflow part.
  • the cross-sectional area of the third portion 118 of the first overflow portion is smaller than the cross-sectional area of the second portion 115 of the first overflow portion.
  • the third part 118 of the first overflow part is connected to the third overflow part 150 to be described later.
  • the second overflow part 120 is connected to the protrusion part 70.
  • the shape of the second overflow part 120 is as follows.
  • the first portion 121 of the second overflow portion is connected to a portion extending obliquely from the rear of the protrusion 70.
  • one end 122 of the first portion of the second overflow portion is connected to one side of the portion 73 obliquely extending from the rear of the protrusion 70.
  • the cross-sectional area of the first portion 121 of the second overflow portion is small, and the height is very low overall.
  • the other end 123 of the first part of the second overflow part is connected to one end 125 of the second part of the second overflow part.
  • the second portion 124 of the second overflow portion has a semicircular cross section and has a larger cross-sectional area than that of the first portion 121 of the second overflow portion.
  • a third portion 127 of the second overflow portion is formed in parallel with a portion extending obliquely from the rear of the protrusion 70 from the other end 126 of the second portion of the second overflow portion.
  • the other end 126 of the second part of the second overflow part and the one end 128 of the third part of the second overflow part are connected.
  • a fourth portion 130 of the second overflow portion is formed at a right angle to the biscuit 20 from the other end 129 of the third portion of the second overflow portion.
  • the fourth portion 130 of the second overflow portion is formed to have a predetermined length, and is perpendicular to the fourth portion 130 of the second overflow portion again from the other end 132 of the fourth portion of the second overflow portion.
  • the fifth portion 134 of the second overflow portion is formed to have.
  • the length of the fifth portion 134 of the second overflow portion is shorter than that of the second portion 124 of the second overflow portion to the fourth portion 130 of the second overflow portion.
  • the rear surface of the fifth part 134 of the second overflow part is connected to the third overflow part 150 which will be described later.
  • a third overflow part 150 connecting the first overflow part 110 and the second overflow part 120 described above is formed.
  • the shape of the third overflow part 150 and the connection between the first overflow part 110 and the second overflow part 120 are as follows.
  • the third overflow part 150 includes a first part 151 of the third overflow part formed in a horizontal direction so as to be connected to the first overflow part 110 and the second overflow part 120. .
  • An upper surface of one end 152 of the first part of the third overflow part and a rear surface of the fifth part 134 of the second overflow part are connected.
  • the upper surface of the middle portion of the first portion 151 of the third overflow portion is connected to the lower surface of the third portion 118 of the first overflow portion.
  • the top surface of the first portion 151 of the third overflow portion is flat, and the bottom surface of the first portion 151 of the third overflow portion is rounded.
  • a second portion 155 of the third overflow portion is formed in the vertical downward direction from the other end 153 of the first portion of the third overflow portion.
  • One end 156 of the second part of the third overflow part and the other end 153 of the first part of the third overflow part are connected.
  • a third portion 160 of the third overflow portion is formed in a horizontal left direction from an upper surface of the other end 153 of the second portion of the third overflow portion.
  • the upper surface of the third portion 160 of the third overflow portion is rounded.
  • a fourth portion 162 of the third overflow portion is formed in the horizontal left direction from the other end of the lower surface of the third portion 160 of the third overflow portion.
  • one end 163 of the fourth part of the third overflow part and the other end of the bottom surface of the third part 160 of the third overflow part are connected.
  • the rear cylinder vacuum casting molded product 10 for a compressor according to the present invention is integrated downward in the order of the main body 50, the second runner part 35, and the first runner part 30 by molten metal injection into a mold. Molded.
  • the biscuit space 210 inside the mold 200, the first runner space 220 and the first runner space 220, which are connected to the rear of the biscuit space 210 and formed vertically, are divided into two.
  • a second runner space 230 for branching A main body space 250 in which a plurality of piston bores and a single shaft bore are formed, a muffler space 260 connected to the main body space 250, and a protrusion space 270 connected to the right side of the muffler;
  • the molten metal is injected into the third overflow space 300 connecting the molten space.
  • the molten metal is injected in a state in which gravity acts in the main body space 250, the second runner space 230, and the first runner space 220.
  • the mold 200 includes a fixed mold (not shown) and a movable mold (not shown), the molten metal is solidified when sufficient time passes after the molten metal is injected into the mold 200.
  • the fixed mold (not shown) and the movable mold (not shown) are separated to eject the rear cylinder vacuum casting molded product 10 for the compressor formed in the mold 200.
  • the rear cylinder vacuum casting molded product 10 for the compressor ejected from the mold 200 may include the first over floor part 110 and the second over floor part 120 formed on the main body 50. 3, the first floor part 150, the first runner part 30, the second runner part 35, and the biscuit 20 formed under the main body 50 are removed.
  • the body 50 is again subjected to machining and post-treatment processes such as cutting to form the holes shown in FIG. 1.
  • the rear cylinder 1 for the compressor is completed only after machining and post-treatment processes such as cutting.
  • the hybrid vacuum casting method means that in the vacuum casting method for high-quality casting of a precise product, the local casting is further applied to a portion where the bubble of the product is likely to occur even by the vacuum casting method.
  • FIGS. 12A and 12B are diagrams simulating the isolation of bubbles in the rear cylinder vacuum casting molding for compressors, and it can be seen that the bubbles are isolated to the protrusions 70.
  • a higher quality compressor rear cylinder vacuum casting molded product can be obtained by locally pressing the protrusion 70.
  • first runner part 35 second runner part
  • space for biscuits 220 space for first runner
  • the compressor rear cylinder vacuum casting molded product and the compressor rear cylinder vacuum casting method according to the present invention can provide a vacuum casting molded product and a vacuum casting method most suitable for producing a compressor rear cylinder by casting.

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

Abstract

The present invention relates to a method for vacuum casting a rear cylinder for a compressor. More particularly, the present invention relates to a method for hybrid vacuum casting a rear cylinder for a compressor, the method being most suitable for manufacturing a rear cylinder for a compressor.

Description

압축기용 리어 실린더의 하이브리드 진공 주조 방법Hybrid vacuum casting method of compressor rear cylinder
본 발명은 압축기용 리어 실린더 진공 주조 성형품과 압축기용 리어 실린더 진공 주조방법에 관한 것으로서, 더욱 상세하게는 압축기용 리어 실린더를 주조로 제작하는데 가장 적합한 진공 주조 성형품과 진공 주조 방법에 관한 것이다.The present invention relates to a rear cylinder vacuum casting molded product for a compressor and a rear cylinder vacuum casting method for a compressor, and more particularly, to a vacuum casting molded product and a vacuum casting method which are most suitable for producing a compressor rear cylinder by casting.
일반적인 차량용 에어컨 시스템은 팽창밸브, 증발기, 압축기, 응축기의 4가지 주요 부품으로 구성된다.A typical automotive air conditioning system consists of four main components: an expansion valve, an evaporator, a compressor, and a condenser.
팽창밸브는 고온ㆍ고압의 액상 냉매를 공급받아 교축한 후 저온ㆍ저압의 액상 냉매로 만들어 증발기로 보내며, 증발기는 저온ㆍ저압의 냉매를 증발시켜 그 증발열로 냉풍을 발생시키는 기능을 한다.The expansion valve receives and throttles a liquid refrigerant of high temperature and high pressure and turns it into a liquid refrigerant of low temperature and low pressure and sends it to the evaporator. The evaporator functions to evaporate the low temperature and low pressure refrigerant to generate cold air by the heat of evaporation.
한편, 다이캐스팅(Die Casting)은 금형의 캐비티(cavity) 내부를 용융온도 650℃ 이상의 용탕으로 고속 충진한 뒤, 사출기에 연결된 유압실린더의 힘을 이용해 피스톤을 가압하여 캐비티 내부를 응고 완료시까지 고압으로 유지함으로써 주조품 내부에 수축기포를 최소화시켜 제품의 품질을 향상시킬 수 있도록 된 주조 공법으로 정교한 제품의 대량 생산에 유리하여 산업 전반에 걸쳐 널리 사용되고 있다.On the other hand, die casting fills the cavity of the mold with molten metal of 650 ℃ or higher, and then pressurizes the piston using the power of the hydraulic cylinder connected to the injection machine to maintain the inside of the cavity at high pressure until solidification is completed. As a result, it is a casting method that minimizes shrinkage bubbles in a casting product to improve product quality, and is widely used throughout the industry in favor of mass production of sophisticated products.
주조 방법에 의해 만들어지는 제품의 품질을 향상시킬 수 있는 동시에 불량발생률을 크게 저감시킬 수 있고, 또 작업능률 내지 생산성을 배가시킬 수 있도록 하는 진공을 적용하는 다이캐스팅 주조 방법이 개시된 바 있다.(한국등록실용신안공보 20-0324226 참고, 종래선행기술1)There has been disclosed a die casting casting method in which a vacuum is applied to improve the quality of a product made by the casting method and at the same time significantly reduce the defect rate and to increase the work efficiency and productivity. Refer to Utility Model Publication 20-0324226, Prior Art 1)
이러한 종래선행기술1에 의해 금형의 성형공동 내부에 공기가 잔류할 경우 그 잔류공기가 용융금속의 성형공동 내 충전을 방해하여 성형불량을 발생시킬 가능성은 감소시킬 수 있었다.According to the prior art 1, when air remains in the molding cavity of the mold, the possibility of the residual air interfering with the filling of the molten metal in the molding cavity may cause a molding failure.
그러나, 주조로 만들고자 하는 제품의 형상이 복잡한 경우에 형상 일부에 부분적으로 기포가 발생한다는 문제점이 있다.However, when the shape of the product to be cast is complicated, there is a problem that bubbles are partially generated in part of the shape.
또한, 다이캐스팅 주조 방법으로 생산하고자 하는 제품의 형상에 따라 캐비티의 일부에 주조압력의 전달효과가 떨어지는 부분이 존재하며, 이러한 부분은 용탕 주입후 금형의 온도가 떨어지면서 수축이 발생할 때 균열(leak)및 기포(이를 수축 기포라 함)가 발생하는 문제점을 해결하기 위해 유압실린더의 피스톤에 의한 가압작용 이외에 주조압력의 전달효과가 떨어지는 부분을 별도로 가압해 줄 수 있게 하는 기술이 개시된 바 있다.(한국공개특허공보 2007-0020947 참고, 종래선행기술2) In addition, according to the shape of the product to be produced by the die-casting casting method, there is a part in which the casting pressure transmission effect is inferior in a part of the cavity, and this part leaks when shrinkage occurs due to the drop in temperature of the mold after injection of the molten metal. And in order to solve the problem that the bubble (this is called a shrinkage bubble) has been disclosed a technique that can press separately the portion of the less effective transmission effect of the casting pressure in addition to the pressure action by the piston of the hydraulic cylinder. See Published Patent Publication No. 2007-0020947, Prior Art 2)
종래선행기술2에 의해 주조압력의 전달효과가 떨어지는 부분에 균열 및 수축기포가 발생하는 것을 방지하여 제품의 품질을 향상시킬 수 있었다.According to the prior art 2, it is possible to prevent cracks and shrinkage bubbles from occurring in the parts where the casting pressure transmission effect is inferior, thereby improving product quality.
그러나, 종래선행기술2의 경우, 대기압 상태에서 용탕을 캐비티에 충진하기 때문에, 여전히 형상 일부에 부분적으로 기포가 발생한다는 문제점이 있다.However, in the prior art 2, since the molten metal is filled in the cavity at atmospheric pressure, there is still a problem that bubbles are partially generated in part of the shape.
한편, 차량용 에어컨 시스템의 하나의 구성요소인 압축기는 엔진의 구동을 받아 작동되는데 증발기에서 배출된 저온ㆍ저압의 기상 냉매를 고온ㆍ고압의 기상 냉매로 압축하여 응축기로 보내며, 응축기는 상기 컴프레서에서 송출된 냉매를 다시 고온ㆍ고압의 액상 냉매로 냉각 및 응축시키는 기능을 한다.(한국등록특허공보 837,144호 참고, 이하 종래선행기술3)Meanwhile, a compressor, which is a component of a vehicle air conditioner system, is driven by an engine, and compresses the low-temperature / low-pressure gaseous refrigerant discharged from the evaporator into a high-temperature / high-pressure gaseous refrigerant and sends it to the condenser, and the condenser is discharged from the compressor. The refrigerant is cooled and condensed into a liquid refrigerant having a high temperature and high pressure. (Refer to Korean Patent Publication No. 837,144.
종래선행기술3에서는 자동차 에어컨용 압축기 실린더에 대한 것으로, 일반적인 압축기 실린더에 대한 다이캐스팅 방법에 관한 기술이 개시되어 있으나, 프론트 헤드, 리어 헤드, 리어 실린더 등과 같은 압축기용 부품에 적합한 주조 방안과 주조 방법에 대해서는 개시된 바 없다.Prior art 3 relates to a compressor cylinder for an automobile air conditioner, and a technique related to a die casting method for a general compressor cylinder is disclosed. However, a casting method and a casting method suitable for a compressor component such as a front head, a rear head, a rear cylinder, and the like are disclosed. Has not been disclosed.
압축기용 부품에 적합한 주조 방법과 관련하여, 종래선행기술4에서 압축기 실린더 제작용 다이캐스팅 금형장치가 개시된 바 있다.(한국공개특허공보 2010-0107585 참고, 이하 종래선행기술4)Regarding a casting method suitable for a component for a compressor, a die casting mold apparatus for manufacturing a compressor cylinder has been disclosed in the prior art 4 (see Korean Patent Publication No. 2010-0107585, hereinafter).
종래선행기술4는 압축기용 리어 실린더의 주조를 위한 다이캐스팅 금형장치에 관한 것으로 일반적인 주조 금형의 구조만을 개시하고 있을 뿐, 종래선행기술4에서는 압축기용 리어 실린더에 적합한 주조 방안과 주조 방법에 대해서는 개시된 바 없다.The prior art 4 relates to a die casting mold apparatus for casting a rear cylinder for a compressor, and only discloses the structure of a general casting die. The prior art 4 discloses a casting method and a casting method suitable for a rear cylinder for a compressor. none.
또한, 한국공개특허공보 2004-0006869에서도 소음 저감형 에어컨 컴프레서 구조만 개시되어 있을 뿐, 프론트 헤드, 리어 헤드, 리어 실린더 등과 같은 압축기용 부품에 적합한 주조 방안과 주조 방법에 대해서는 개시된 바 없다.In addition, Korean Patent Publication No. 2004-0006869 discloses only a noise reduction air conditioner compressor structure, and does not disclose a casting method and a casting method suitable for a compressor component such as a front head, a rear head, a rear cylinder, and the like.
본 발명은 종래기술의 단점을 해결하기 위해 안출된 것으로, 다양한 설계 변경과 시행착오 및 시뮬레이션을 거듭한 끝에 압축기용 리어 실린더를 주조로 제작하는데 진공 주조와 부분 가압 기술에 의해 기포 발생을 최소화할 뿐만 아니라 주조로 제작하는데 가장 적합하도록 최적화된 러너와 오버플로어 형상 설계를 갖는 압축기용 리어 실린더 진공 주조 성형품과 압축기용 리어 실린더 진공 주조 방법을 제공하는데 그 목적이 있다.The present invention has been made to solve the shortcomings of the prior art, and after the various design changes, trial and error, and simulation to produce the rear cylinder for the compressor by casting to minimize the generation of bubbles by vacuum casting and partial pressure technology. It is also an object of the present invention to provide a rear cylinder vacuum casting molded part for a compressor and a rear cylinder vacuum casting method for a compressor having a runner and an overflow shape design optimized to be most suitable for manufacturing by casting.
이와 같은 과제를 해결하기 위한 본 발명의 압축기용 리어 실린더의 진공 주조 방법은 금형 내부에 진공을 유지시키는 상태;Vacuum casting method of the rear cylinder for a compressor of the present invention for solving such a problem is to maintain a vacuum in the mold;
비스킷용 공간, 상기 비스킷용 공간의 후방에 연결되며 수직으로 형성된 제1 러너용 공간, 상기 제1 러너용 공간에서 2개로 분기되는 제2 러너용 공간; 복수개의 피스톤 보어 및 단일의 샤프트 보어가 형성되는 본체용 공간, 상기 본체용 공간에 연결되는 머플러용 공간, 상기 머플러의 우측에 연결되는 돌출부용 공간; 상기 머플러용 공간에 연결되는 제1 오버 플로어용 공간, 상기 돌출부용 공간에 연결되는 제2 오버 플로어용 공간, 상기 제1 오버 플로어용 공간과 상기 제2 오버 플로어용 공간을 연결하는 제3 오버 플로어용 공간;에 용탕을 주입하는 단계;A space for a biscuit, a space for a first runner connected vertically to the rear of the space for a biscuit, and a space for a second runner divided into two in the space for the first runner; A space for a body in which a plurality of piston bores and a single shaft bore are formed, a space for a muffler connected to the space for the body, and a space for a protrusion connected to the right side of the muffler; A first overflow space connected to the muffler space, a second overflow space connected to the protrusion space, a third overflow floor connecting the first overflow space and the second overflow space Injecting molten metal into a molten space;
상기 돌출부용 공간을 부분 가압하는 단계;를 포함하되,And partially pressing the space for the protrusion.
본체용 공간, 제2 러너용 공간, 제1 러너용 공간 방향으로 중력이 작용하는 상태에서 용탕이 주입되는 것을 특징으로 한다.The molten metal is injected in a state in which gravity acts in the direction of the main body space, the second runner space, and the first runner space.
본 발명에 의한 압축기용 리어 실린더 진공 주조방법은 다음과 같은 장점이 있다.The rear cylinder vacuum casting method for a compressor according to the present invention has the following advantages.
(1) 진공 주조 및 부분 가압을 병행함으로써, 압축기용 리어 실린더 주조 성형품에 기포 발생을 최소화 시킬 수 있다.(1) By simultaneously performing vacuum casting and partial pressurization, it is possible to minimize bubble generation in the rear cylinder cast molded product for the compressor.
(2) 압축기용 리어 실린더 형상에 가장 최적의 주조 방안의 제공이 가능하다.(2) It is possible to provide the most optimal casting method for the shape of the rear cylinder for the compressor.
도 1은 본 발명에 의한 압축기용 리어 실린더의 사시도.1 is a perspective view of a rear cylinder for a compressor according to the present invention.
도 2는 본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품의 바람직한 실시례의 사시도.2 is a perspective view of a preferred embodiment of a rear cylinder vacuum casting molded article for a compressor according to the present invention.
도 2는 본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품의 바람직한 실시례의 사시도.2 is a perspective view of a preferred embodiment of a rear cylinder vacuum casting molded article for a compressor according to the present invention.
도 3은 본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품의 바람직한 실시례의 정면도.3 is a front view of a preferred embodiment of a rear cylinder vacuum casting molded article for a compressor according to the present invention.
도 4는 본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품의 바람직한 실시례를 다른 방향에서 본 사시도.Figure 4 is a perspective view of a preferred embodiment of the rear cylinder vacuum casting molded article for a compressor according to the present invention from another direction.
도 5는 본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품의 바람직한 실시례의 배면사시도.5 is a rear perspective view of a preferred embodiment of a rear cylinder vacuum casting molded product for a compressor according to the present invention;
도 6은 본 발명에 의한 압축기용 리어 실린더 진공 주조방법의 바람직한 실시례의 순서도.Figure 6 is a flow chart of a preferred embodiment of the rear cylinder vacuum casting method for a compressor according to the present invention.
도 7(a), (b)는 본 발명에 의한 압축기용 리어 실린더 진공 주조방법의 금형의 평면도.7 (a) and 7 (b) are plan views of a mold of the rear cylinder vacuum casting method for a compressor according to the present invention;
도 8 내지 도 11은 본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품이 금형 내에서 시간에 따른 충진을 시뮬레이션한 도면.8 to 11 is a view simulating the filling of the rear cylinder vacuum casting molded product for the compressor according to the invention over time in the mold.
도 12(a), (b)는 압축기용 리어 실린더 진공 주조 성형품의 기포가 고립되는 것을 시뮬레이션한 도면.12 (a) and 12 (b) are diagrams simulating that bubbles in the rear cylinder vacuum casting molded product for the compressor are isolated.
이하에서는 본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품의 바람직한 실시례를 첨부된 도면을 참조하여 자세하게 설명한다.Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a rear cylinder vacuum casting molded article for a compressor according to the present invention will be described in detail.
먼저 도 1은 압축기용 리어 실린더(1)의 사시도이다.1 is a perspective view of a rear cylinder 1 for a compressor.
상기 압축기용 리어 실린더는 회전샤프트(미도시)를 결합할 수 있도록 중앙부에 샤프트보어(5)가 형성된다.The rear cylinder for the compressor has a shaft bore (5) is formed in the center to couple the rotary shaft (not shown).
상기 샤프트보어(5)의 외측에 피스톤이 삽입되는 복수의 피스톤보어(8)가 등간격으로 형성된다.A plurality of piston bores 8 into which pistons are inserted outside the shaft bore 5 are formed at equal intervals.
상기 샤프트보어(5)와 상기 피스톤보어(8) 사이에는 살이 형성되어 있다.A flesh is formed between the shaft bore 5 and the piston bore 8.
여기에서는 본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품(10) 위주로 첨부된 도면을 참조하여 자세하게 설명한다.Here, it demonstrates in detail with reference to the attached drawing centering around the rear cylinder vacuum casting molded article 10 for compressors by this invention.
먼저 본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품(10)은 비스킷(20)을 포함한다.First, the rear cylinder vacuum casting molded product 10 for a compressor according to the present invention includes a biscuit 20.
상기 비스킷(20)의 형상은 대략적으로 높이가 낮은 원통형으로 상기 비스킷의 상면(21)은 평평하다.The shape of the biscuit 20 is a cylindrical shape having a low height, and the top surface 21 of the biscuit is flat.
상기 비스킷의 상면(21)의 직경은 상기 비스킷의 후방(22)의 직경보다 작도록 형성한다.The diameter of the upper surface 21 of the biscuit is formed to be smaller than the diameter of the rear 22 of the biscuit.
상기 비스킷의 후방(22)에는 제1 러너부(30)가 연결된다.The first runner part 30 is connected to the rear 22 of the biscuit.
상기 제1 러너부(30)는 상기 비스킷의 후방(22)에서 수직으로 더욱 자세하게는 수직 상향으로 일정한 길이로 형성된다. The first runner part 30 is formed at a predetermined length vertically upwardly in more detail vertically from the rear 22 of the biscuit.
상기 제1 러너부의 일단(31)은 상기 비스킷의 후방(22)에 연결되며, 상기 제1 러너부의 타단(32)은 후술한 제2 러너부(35)와 연결된다.One end 31 of the first runner part is connected to the rear 22 of the biscuit, and the other end 32 of the first runner part is connected to the second runner part 35 described later.
상기 제1 러너부의 타단(32)에서 제2 러너부(35)는 2개로 분기된다.At the other end 32 of the first runner part, the second runner part 35 branches into two.
즉, 2개로 분기된 상기 제2 러너부(35)는 제2 러너부 좌측(36)과 제2 러너부 우측(37)을 형성한다.That is, the second runner part 35 branched into two forms the second runner part left 36 and the second runner part right 37.
상기 제2 러너부의 좌측(36)과 제2 러너부의 우측(37) 사이에는 제2 러너부의 좌측과 우측 사이 공간(23)이 형성된다. A space 23 is formed between the left side and the right side of the second runner portion between the left side 36 of the second runner portion and the right side 37 of the second runner portion.
상기 제2 러너부의 좌측의 일단(38)과 제2 러너부의 우측의 일단(39)은 상기 제1 러너부의 타단(32)과 연결된다. One end 38 on the left side of the second runner portion and one end 39 on the right side of the second runner portion are connected to the other end 32 of the first runner portion.
상기 제2 러너부의 좌측(36)의 중간부분은 제2 러너부의 좌측의 타단(40)과 비스듬하게 연결된다.The middle portion of the left side 36 of the second runner portion is connected obliquely to the other end 40 on the left side of the second runner portion.
상기 제2 러너부의 우측(37)의 중간부분은 제2 러너부의 우측의 타단(41)과 비스듬하게 연결된다.The middle portion of the right side 37 of the second runner portion is connected obliquely to the other end 41 on the right side of the second runner portion.
상기 제2 러너부의 좌측의 타단(40)과 제2 러너부의 우측의 타단(41)은 후술할 본체(50)에 연결되며, 더욱 자세하게는 상기 본체의 전방 하단(51)에 연결된다.The other end 40 on the left side of the second runner part and the other end 41 on the right side of the second runner part are connected to the main body 50 to be described later, and more specifically, to the front lower end 51 of the main body.
상기 본체(50)는 정면에 봤을 때, 복수 개의 피스톤 보어(8) 및 단일의 샤프트 보어(5)가 형성되며, 전체적인 형상은 중앙에 단일의 샤프트 보어(5)가 형성되며, 상기 샤프트 보어(5) 주변으로 방사상으로 등간격을 갖는 복수 개의 피스톤 보어(8)가 형성되며, 후술할 제1 오버플로어부(110)와 머플러(60)가 연결되는 상기 본체의 상부(55)는 뾰족한 형상을 가진다.When the main body 50 is viewed from the front, a plurality of piston bores 8 and a single shaft bore 5 is formed, the overall shape is a single shaft bore 5 is formed in the center, the shaft bore ( 5) A plurality of piston bores 8 having radially equal intervals are formed around the upper portion 55 of the main body to which the first overflow portion 110 and the muffler 60 are connected to each other have a sharp shape. Have
상기 본체(50)는 전체적으로 원형인 형상으로 이루어진다..The main body 50 has a circular shape as a whole.
상기 샤프트 보어(5)의 직경은 상기 피스톤 보어(8)보다 작게 형성된다. The diameter of the shaft bore 5 is formed smaller than the piston bore 8.
전술한 바와 같이, 상기 제2 러너부의 좌측의 타단(40)과 제2 러너부의 우측의 타단(41)은 상기 본체(50)에 연결되며, 더욱 자세하게는 상기 본체의 전방 하단(51)에 연결된다.As described above, the other end 40 on the left side of the second runner part and the other end 41 on the right side of the second runner part are connected to the main body 50, and more particularly, to the front lower end 51 of the main body. do.
상기 본체(50)에는 머플러(60)가 연결되며, 더욱 자세하게는 상기 본체의 상부(55)에 연결된다.The muffler 60 is connected to the main body 50, and more specifically, connected to the upper portion 55 of the main body.
상기 머플러(60)의 내부에는 공간(65)이 형성되며, 상기 머플러의 우측(61)에는 돌출부(70)가 형성된다.A space 65 is formed inside the muffler 60, and a protrusion 70 is formed at the right side 61 of the muffler.
상기 돌출부(70)에는 측면으로 중공 원형부(75)가 형성된다.The protruding portion 70 has a hollow circular portion 75 is formed laterally.
상기 돌출부의 일단(71)은 상기 머플러의 우측(61)에 연결된다.One end 71 of the protrusion is connected to the right side 61 of the muffler.
상기 돌출부의 후방(72)으로부터 비스듬하게 연장된 부분(73)이 형성된다.A portion 73 extending obliquely from the rear 72 of the protrusion is formed.
이하에서는 제1 오버 플로어부(110)에 대하여 도면을 참고하여 자세하게 설명한다.Hereinafter, the first overflow part 110 will be described in detail with reference to the drawings.
먼저, 상기 머플러(60)에는 제1 오버 플로어부(110)가 연결된다.First, the first overflow part 110 is connected to the muffler 60.
더욱 구체적으로는 상기 머플러(60)의 좌측 전방에 제1 오버 플로어부(110)가 연결된다.More specifically, the first overflow part 110 is connected to the left front side of the muffler 60.
상기 제1 오버 플로어부(110)의 형상은 다음과 같다.The shape of the first overflow part 110 is as follows.
상기 머플러(60)의 좌측 전방에 연결된 부분을 제1 오버 플로어부의 제1부(111)라 한다.The part connected to the front left side of the muffler 60 is called the first part 111 of the first overflow part.
제1 오버 플로어부의 제1부의 일단(112)은 상기 머플러(60)의 좌측 전방에 연결되며, 상기 머플러(60)의 좌측 전방으로 돌출된다.One end 112 of the first part of the first overflow part is connected to the front left side of the muffler 60 and protrudes toward the front left side of the muffler 60.
상기 제1 오버 플로어부의 제1부(111)의 상면은 라운드가 형성된다.The upper surface of the first portion 111 of the first overflow part is rounded.
상기 제1 오버 플로어부의 제1부(111)는 상기 머플러(60)의 좌측 전방에 연결된 부분의 단면적이 크며, 상기 머플러(60)의 좌측 전방으로 돌출될수록, 즉 상기 제1 오버 플로어부의 제1부의 타단(113)으로 향하며 그 단면적이 감소하는 형상을 갖는다.The first portion 111 of the first overflow part has a larger cross-sectional area of a portion connected to the front left side of the muffler 60, and the more protruding toward the front left side of the muffler 60, that is, the first portion of the first overflow part. It is directed to the other end 113 and has a shape in which the cross-sectional area thereof is reduced.
상기 제1 오버 플로어부의 제1부의 타단(113)은 제1 오버 플로어부의 제2부(115)와 연결된다. The other end 113 of the first part of the first overflow part is connected to the second part 115 of the first overflow part.
상기 제1 오버 플로어부의 제2부(115)의 형상은 모서리에 라운드를 가지며 전체적으로는 낮은 높이를 갖는 사각형 기둥 모양이다.The shape of the second part 115 of the first overflow part has a rounded corner and a rectangular pillar shape having a low height as a whole.
상기 제1 오버 플로어부의 제2부(115)의 하면의 단면적이 상기 제1 오버 플로어부의 제2부(115)의 상면의 단면적보다 크도록 형성한다.The cross-sectional area of the lower surface of the second portion 115 of the first overflow portion is formed to be larger than the cross-sectional area of the upper surface of the second portion 115 of the first overflow portion.
상기 제1 오버 플로어부의 제2부의 일단(116)은 상기 제1 오버 플로어부의 제1부의 타단(113)과 연결된다.One end 116 of the second part of the first overflow part is connected to the other end 113 of the first part of the first overflow part.
상기 제1 오버 플로어부의 제2부의 타단(117)으로부터 수직 상향으로 제1 오버 플로어부의 제3부(118)가 형성된다.A third portion 118 of the first overflow portion is formed vertically upward from the other end 117 of the second portion of the first overflow portion.
상기 제1 오버 플로어부의 제3부(118)의 전체적인 형상은 길이방향으로 일정한 단면적을 가지며 낮은 높이를 갖는 기둥형상이며, 상기 제1 오버 플로어부의 제3부(118)의 상면에는 라운드가 형성되어 있다.The overall shape of the third portion 118 of the first overflow part has a constant cross-sectional area in the longitudinal direction and has a low height, and a round is formed on an upper surface of the third part 118 of the first overflow part. have.
상기 제1 오버 플로어부의 제3부의 일단(119)은 상기 제1 오버 플로어부의 제2부의 타단(117)과 연결된다.One end 119 of the third part of the first overflow part is connected to the other end 117 of the second part of the first overflow part.
도면에 도시된 바와 같이, 상기 제1 오버 플로어부의 제3부(118)의 단면적은 상기 제1 오버 플로어부의 제2부(115)의 단면적보다 작게 형성한다. As shown in the figure, the cross-sectional area of the third portion 118 of the first overflow portion is smaller than the cross-sectional area of the second portion 115 of the first overflow portion.
상기 제1 오버 플로어부의 제3부(118)는 후술할 제3 오버 플로어부(150)와 연결된다.The third part 118 of the first overflow part is connected to the third overflow part 150 to be described later.
상기 돌출부(70)에는 제2 오버플로어부(120)가 연결된다.The second overflow part 120 is connected to the protrusion part 70.
상기 제2 오버 플로어부(120)의 형상은 다음과 같다.The shape of the second overflow part 120 is as follows.
상기 돌출부(70)의 후방으로부터 비스듬하게 연장된 부분에 상기 제2 오버 플로어부의 제1부(121)가 연결된다.The first portion 121 of the second overflow portion is connected to a portion extending obliquely from the rear of the protrusion 70.
즉, 상기 제2 오버 플로어부의 제1부의 일단(122)이 상기 돌출부(70)의 후방으로부터 비스듬하게 연장된 부분(73)의 일측면에 연결된다.That is, one end 122 of the first portion of the second overflow portion is connected to one side of the portion 73 obliquely extending from the rear of the protrusion 70.
상기 제2 오버 플로어부의 제1부(121)의 단면적은 작으며, 전체적으로 높이가 매우 낮다.The cross-sectional area of the first portion 121 of the second overflow portion is small, and the height is very low overall.
상기 제2 오버 플로어부의 제1부의 타단(123)은 상기 제2 오버 플로어부의 제2부의 일단(125)과 연결된다. The other end 123 of the first part of the second overflow part is connected to one end 125 of the second part of the second overflow part.
상기 제2 오버 플로어부의 제2부(124)는 단면이 전체적으로 반원 형상을 가지며, 상기 제2 오버 플로어부의 제1부(121)의 단면적보다 큰 단면적을 갖는다.The second portion 124 of the second overflow portion has a semicircular cross section and has a larger cross-sectional area than that of the first portion 121 of the second overflow portion.
상기 제2 오버 플로어부의 제2부의 타단(126)으로부터 상기 돌출부(70)의 후방으로부터 비스듬하게 연장된 부분과 평행하게 제2 오버 플로어부의 제3부(127)가 형성된다.A third portion 127 of the second overflow portion is formed in parallel with a portion extending obliquely from the rear of the protrusion 70 from the other end 126 of the second portion of the second overflow portion.
상기 제2 오버 플로어부의 제2부의 타단(126)과 제2 오버 플로어부의 제3부의 일단(128)이 연결된다. The other end 126 of the second part of the second overflow part and the one end 128 of the third part of the second overflow part are connected.
상기 제2 오버 플로어부의 제3부의 타단(129)으로부터 상기 비스킷(20)을 향하는 방향으로 즉, 직각을 가지며 상기 제2 오버 플로어부의 제4부(130)가 형성된다. A fourth portion 130 of the second overflow portion is formed at a right angle to the biscuit 20 from the other end 129 of the third portion of the second overflow portion.
상기 제2 오버 플로어부의 제4부(130)는 일정한 길이를 갖도록 형성되며, 상기 제2 오버 플로어부의 제4부의 타단(132)으로부터 다시 상기 제2 오버 플로어부의 제4부(130)와 직각을 갖도록 제2 오버 플로어부의 제5부(134)가 형성된다.The fourth portion 130 of the second overflow portion is formed to have a predetermined length, and is perpendicular to the fourth portion 130 of the second overflow portion again from the other end 132 of the fourth portion of the second overflow portion. The fifth portion 134 of the second overflow portion is formed to have.
상기 제2 오버 플로어부의 제5부(134)의 길이는 상기 제2 오버 플로어부의 제2부(124) 내지 상기 제2 오버 플로어부의 제4부(130)보다 짧게 형성한다. The length of the fifth portion 134 of the second overflow portion is shorter than that of the second portion 124 of the second overflow portion to the fourth portion 130 of the second overflow portion.
상기 제2 오버 플로어부의 제5부(134)의 후면은 후술할 제3 오버 플로어부(150)와 연결된다. The rear surface of the fifth part 134 of the second overflow part is connected to the third overflow part 150 which will be described later.
이상에서 설명한 상기 제1 오버 플로어부(110)와 상기 제2 오버 플로어부(120)를 연결하는 제3 오버 플로어부(150)가 형성된다.A third overflow part 150 connecting the first overflow part 110 and the second overflow part 120 described above is formed.
상기 제3 오버 플로어부(150)의 형상과 상기 제1 오버 플로어부(110)와 상기 제2 오버 플로어부(120)와의 연결은 다음과 같다.The shape of the third overflow part 150 and the connection between the first overflow part 110 and the second overflow part 120 are as follows.
상기 제3 오버 플로어부(150)는 상기 제1 오버 플로어부(110)와 상기 제2 오버 플로어부(120)와 연결되도록 수평방향으로 형성된 제3 오버 플로어부의 제1부(151)가 포함된다.The third overflow part 150 includes a first part 151 of the third overflow part formed in a horizontal direction so as to be connected to the first overflow part 110 and the second overflow part 120. .
상기 제3 오버 플로어부의 제1부의 일단(152)의 상면과 상기 제2 오버 플로어부의 제5부(134)의 후면이 연결된다.An upper surface of one end 152 of the first part of the third overflow part and a rear surface of the fifth part 134 of the second overflow part are connected.
상기 제3 오버 플로어부의 제1부(151)의 중간부분의 상면과 상기 제1 오버 플로어부의 제3부(118)의 하면과 연결된다.The upper surface of the middle portion of the first portion 151 of the third overflow portion is connected to the lower surface of the third portion 118 of the first overflow portion.
상기 제3 오버 플로어부의 제1부(151)의 상면은 평평하며, 상기 제3 오버 플로어부의 제1부(151)의 하면은 라운드가 형성되어 있다.The top surface of the first portion 151 of the third overflow portion is flat, and the bottom surface of the first portion 151 of the third overflow portion is rounded.
상기 제3 오버 플로어부의 제1부의 타단(153)으로부터 수직 하향방향으로 제3 오버 플로어부의 제2부(155)가 형성된다. A second portion 155 of the third overflow portion is formed in the vertical downward direction from the other end 153 of the first portion of the third overflow portion.
상기 제3 오버 플로어부의 제2부의 일단(156)과 상기 제3 오버 플로어부의 제1부의 타단(153)이 연결된다. One end 156 of the second part of the third overflow part and the other end 153 of the first part of the third overflow part are connected.
상기 제3 오버 플로어부의 제2부의 타단(153)의 상면으로부터 수평 좌측방향으로 상기 제3 오버 플로어부의 제3부(160)가 형성된다.A third portion 160 of the third overflow portion is formed in a horizontal left direction from an upper surface of the other end 153 of the second portion of the third overflow portion.
상기 제3 오버 플로어부의 제3부(160)의 상면은 라운드가 형성되어 있다.The upper surface of the third portion 160 of the third overflow portion is rounded.
상기 제3 오버 플로어부의 제3부(160)의 하면의 타단으로부터 수평 좌측방향으로 상기 제3 오버 플로어부의 제4부(162)가 형성된다.A fourth portion 162 of the third overflow portion is formed in the horizontal left direction from the other end of the lower surface of the third portion 160 of the third overflow portion.
더욱 구체적으로는 상기 제3 오버 플로어부의 제4부의 일단(163)과 상기 제3 오버 플로어부의 제3부(160)의 하면의 타단이 연결된다.More specifically, one end 163 of the fourth part of the third overflow part and the other end of the bottom surface of the third part 160 of the third overflow part are connected.
본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품(10)은 금형에의 용탕 주입에 의해 상기 본체(50), 상기 제2 러너부(35), 상기 제1 러너부 (30)순서대로 아래로 일체 성형된다.The rear cylinder vacuum casting molded product 10 for a compressor according to the present invention is integrated downward in the order of the main body 50, the second runner part 35, and the first runner part 30 by molten metal injection into a mold. Molded.
이하에서는 본 발명에 의한 압축기용 리어 실린더 진공 주조방법의 바람직한 실시례를 첨부된 도면을 참조하여 자세하게 설명한다.Hereinafter, a preferred embodiment of the rear cylinder vacuum casting method for a compressor according to the present invention will be described in detail with reference to the accompanying drawings.
먼저 금형(200) 내부에 진공을 유지시킨다.(S1단계)First, the vacuum is maintained inside the mold 200. (S1 step)
상기 금형(200) 내부에 비스킷용 공간(210), 상기 비스킷용 공간(210)의 후방에 연결되며 수직으로 형성된 제1 러너용 공간(220), 상기 제1 러너용 공간(220)에서 2개로 분기되는 제2 러너용 공간(230); 복수 개의 피스톤 보어 및 단일의 샤프트 보어가 형성되는 본체용 공간(250), 상기 본체용 공간(250)에 연결되는 머플러용 공간(260), 상기 머플러의 우측에 연결되는 돌출부용 공간(270); 상기 머플러용 공간(260)에 연결되는 제1 오버 플로어용 공간(280), 상기 돌출부용 공간에 연결되는 제2 오버 플로어용 공간(290), 상기 제1 오버 플로어용 공간과 상기 제2 오버 플로어용 공간을 연결하는 제3 오버 플로어용 공간(300);에 용탕을 주입한다.(S2단계)The biscuit space 210 inside the mold 200, the first runner space 220 and the first runner space 220, which are connected to the rear of the biscuit space 210 and formed vertically, are divided into two. A second runner space 230 for branching; A main body space 250 in which a plurality of piston bores and a single shaft bore are formed, a muffler space 260 connected to the main body space 250, and a protrusion space 270 connected to the right side of the muffler; A first overflow space 280 connected to the muffler space 260, a second overflow space 290 connected to the protrusion space, the first overflow space and the second overflow floor The molten metal is injected into the third overflow space 300 connecting the molten space. (Step S2)
상기 돌출부용 공간(270)을 부분 가압한다.(S3단계)Partly pressurizes the protruding portion space 270.
이러한 본체용 공간(250), 제2 러너용 공간(230), 제1 러너용 공간 (220)방향으로 중력이 작용하는 상태에서 용탕이 주입된다.The molten metal is injected in a state in which gravity acts in the main body space 250, the second runner space 230, and the first runner space 220.
상기 금형(200)은 고정금형(미도시)과 가동금형(미도시)으로 이루어져 있으므로, 상기 금형(200) 내부에 용탕이 주입된 후, 충분한 시간이 경과하면 용탕이 응고된다.Since the mold 200 includes a fixed mold (not shown) and a movable mold (not shown), the molten metal is solidified when sufficient time passes after the molten metal is injected into the mold 200.
그런다음 고정금형(미도시)과 가동금형(미도시)을 분리시켜, 상기 금형(200) 내부에 형성된 압축기용 리어 실린더 진공 주조 성형품(10)을 이젝팅한다.Then, the fixed mold (not shown) and the movable mold (not shown) are separated to eject the rear cylinder vacuum casting molded product 10 for the compressor formed in the mold 200.
상기 금형(200) 내부에서 이젝팅된 압축기용 리어 실린더 진공 주조 성형품(10)은 상기 본체(50)의 상부에 형성된 상기 제1오버 플로어부(110)와 제2오버 플로어부(120)와 제3오버 플로어부(150), 상기 본체(50)의 하부에 형성된 상기 제1 러너부(30)와 상기 제2 러너부(35) 및 상기 비스킷(20)을 제거하는 공정을 거친다.The rear cylinder vacuum casting molded product 10 for the compressor ejected from the mold 200 may include the first over floor part 110 and the second over floor part 120 formed on the main body 50. 3, the first floor part 150, the first runner part 30, the second runner part 35, and the biscuit 20 formed under the main body 50 are removed.
상기 본체(50)는 다시 도 1에 도시한 구멍(홀)의 형성을 위한 절삭과 같은 기계가공 및 후처리 공정을 거친다.The body 50 is again subjected to machining and post-treatment processes such as cutting to form the holes shown in FIG. 1.
절삭과 같은 기계가공 및 후처리 공정을 거쳐 비로소 압축기용 리어 실린더(1)가 완성된다. The rear cylinder 1 for the compressor is completed only after machining and post-treatment processes such as cutting.
본 발명의 바람직한 실시례에서 하이브리드 진공 주조 방법은 정밀한 제품의 고품질 주조를 위한 진공 주조 방법에 있어서, 상기 진공 주조 방법에 의해서도 제품의 기포가 발생할 가능성이 높은 부분에 추가로 국부 가압하는 것을 의미한다.In a preferred embodiment of the present invention, the hybrid vacuum casting method means that in the vacuum casting method for high-quality casting of a precise product, the local casting is further applied to a portion where the bubble of the product is likely to occur even by the vacuum casting method.
도 8 내지 도 11은 본 발명의 바람직한 실시례에 의한 압축기용 리어 실린더를 제작하기 위한 상기 금형(100) 내부에 용탕 주입 후 시간 경과순으로 상기 금형(100)에서의 용탕이 어떻게 충진되는가를 보여주는 시뮬레이션 도면이다.8 to 11 illustrate how the molten metal is filled in the mold 100 in a lapse of time after the injection of the molten metal into the mold 100 for manufacturing the compressor rear cylinder according to the preferred embodiment of the present invention. Simulation drawing.
도 12a와 도 12b는 압축기용 리어 실린더 진공 주조 성형품의 기포가 고립되는 것을 시뮬레이션한 도면으로 기포가 상기 돌출부(70)에 고립됨을 알 수 있다.12A and 12B are diagrams simulating the isolation of bubbles in the rear cylinder vacuum casting molding for compressors, and it can be seen that the bubbles are isolated to the protrusions 70.
따라서 본 발명에서는 상기 돌출부(70)를 국부적으로 가압함으로써 보다 고품질의 압축기용 리어 실린더 진공 주조 성형품을 얻을 수 있다.Therefore, in the present invention, a higher quality compressor rear cylinder vacuum casting molded product can be obtained by locally pressing the protrusion 70.
상술한 바와 같이, 본 발명의 바람직한 실시례를 참조하여 설명하였지만, 해당기술분야의 당업자는 하기의 특허청구범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 또는 변형하여 실시할 수 있다.As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications or variations of the present invention without departing from the spirit and scope of the invention described in the claims below Can be carried out.
(부호의 설명)(Explanation of the sign)
10 : 압축기용 리어 실린더 진공 주조 성형품10: Compressor Rear Cylinder Vacuum Casting Molded Product
30 : 제1 러너부 35 : 제2 러너부30: first runner part 35: second runner part
50 : 본체 70 : 돌출부50: main body 70: protrusion
110 : 제1 오버플로어 120 : 제2 오버플로어110: first overflow 120: second overflow
150 : 제3 오버플로어 200 : 금형150: third overflow 200: mold
210 : 비스킷용 공간 220 : 제1 러너용 공간210: space for biscuits 220: space for first runner
230 : 제2 러너용 공간 250 : 본체용 공간230: space for the second runner 250: space for the body
260 : 머플러용 공간 270 : 돌출부용 공간260: space for muffler 270: space for protrusion
본 발명에 의한 압축기용 리어 실린더 진공 주조 성형품과 압축기용 리어 실린더 진공 주조방법은 압축기용 리어 실린더를 주조로 제작하는데 가장 적합한 진공 주조 성형품과 진공 주조 방법을 제공할 수 있다.The compressor rear cylinder vacuum casting molded product and the compressor rear cylinder vacuum casting method according to the present invention can provide a vacuum casting molded product and a vacuum casting method most suitable for producing a compressor rear cylinder by casting.

Claims (1)

  1. 금형 내부에 진공을 유지시키는 상태;Maintaining a vacuum inside the mold;
    비스킷용 공간, 상기 비스킷용 공간의 후방에 연결되며 수직으로 형성된 제1 러너용 공간, 상기 제1 러너용공간에서 2개로 분기되는 제2 러너용 공간; 복수개의 피스톤 보어 및 단일의 샤프트 보어가 형성되는 본체용 공간, 상기 본체용 공간에 연결되는 머플러용 공간, 상기 머플러의 우측에 연결되는 돌출부용 공간; 상기 머플러용 공간에 연결되는 제1 오버 플로어용 공간, 상기 돌출부용 공간에 연결되는 제2 오버 플로어용 공간, 상기 제1 오버 플로어용 공간과 상기 제2 오버 플로어용 공간을 연결하는 제3 오버 플로어용 공간;에 용탕을 주입하는 단계;A space for a biscuit, a space for a first runner connected vertically to the rear of the space for a biscuit, and a space for a second runner branching in two from the space for the first runner; A space for a body in which a plurality of piston bores and a single shaft bore are formed, a space for a muffler connected to the space for the body, and a space for a protrusion connected to the right side of the muffler; A first overflow space connected to the muffler space, a second overflow space connected to the protrusion space, a third overflow floor connecting the first overflow space and the second overflow space Injecting molten metal into a molten space;
    상기 돌출부용 공간을 부분 가압하는 단계;를 포함하되,And partially pressing the space for the protrusion.
    본체용 공간, 제2 러너용 공간, 제1 러너용 공간 방향으로 중력이 작용하는 상태에서 용탕이 주입되는 것을 특징으로 하는 압축기용 리어 실린더의 진공 주조 방법A method of vacuum casting of a rear cylinder for a compressor, wherein molten metal is injected in a state in which gravity acts in the direction of the space for the main body, the space for the second runner, and the space for the first runner.
PCT/KR2012/002384 2012-03-30 2012-03-30 Method for hybrid vacuum casting rear cylinder for compressor WO2013147348A1 (en)

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KR1020120033097A KR20130110827A (en) 2012-03-30 2012-03-30 Hybrid vacuum casting method for compressor rear cylinder
KR10-2012-0033097 2012-03-30

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58181463A (en) * 1982-04-16 1983-10-24 Denki Kogyo Kk Method and device for precision casting
JPH05123845A (en) * 1991-10-30 1993-05-21 Toyota Motor Corp Apparatus and method for vacuum casting
KR20050030584A (en) * 2003-09-25 2005-03-30 도시바 기카이 가부시키가이샤 Die cast apparatus and casting method
KR20110097201A (en) * 2010-02-25 2011-08-31 주식회사 동서기공 Mold assembly and molding method using thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58181463A (en) * 1982-04-16 1983-10-24 Denki Kogyo Kk Method and device for precision casting
JPH05123845A (en) * 1991-10-30 1993-05-21 Toyota Motor Corp Apparatus and method for vacuum casting
KR20050030584A (en) * 2003-09-25 2005-03-30 도시바 기카이 가부시키가이샤 Die cast apparatus and casting method
KR20110097201A (en) * 2010-02-25 2011-08-31 주식회사 동서기공 Mold assembly and molding method using thereof

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