KR100231051B1 - A surface treatment method for brake drum of washing machine - Google Patents

A surface treatment method for brake drum of washing machine Download PDF

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Publication number
KR100231051B1
KR100231051B1 KR1019970055410A KR19970055410A KR100231051B1 KR 100231051 B1 KR100231051 B1 KR 100231051B1 KR 1019970055410 A KR1019970055410 A KR 1019970055410A KR 19970055410 A KR19970055410 A KR 19970055410A KR 100231051 B1 KR100231051 B1 KR 100231051B1
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South Korea
Prior art keywords
brake drum
brake
washing machine
treatment method
surface treatment
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KR1019970055410A
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Korean (ko)
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KR19990033957A (en
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이형열
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윤종용
삼성전자주식회사
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Priority to KR1019970055410A priority Critical patent/KR100231051B1/en
Publication of KR19990033957A publication Critical patent/KR19990033957A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 
    • D06F37/40Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 
    • D06F37/304Arrangements or adaptations of electric motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D65/12Discs; Drums for disc brakes
    • F16D65/122Discs; Drums for disc brakes adapted for mounting of friction pads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/14Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00Manufacturing; Assembly
    • F16D2250/0038Surface treatment
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00Manufacturing; Assembly
    • F16D2250/0038Surface treatment
    • F16D2250/0046Coating

Abstract

본 발명에 의한 세탁기용 브레이크드럼의 표면처리방법은, 탈수정지시 또는 세탁시 탈수조의 회전이 정지되도록 브레이크밴드의 브레이크라이닝과 밀착되는 브레이크 드럼을 구비한 세탁기에 있어서, 상기 브레이크드럼의 외주 표면에는 상기 브레이크라이닝이 긴밀하게 밀착되어 균일한 제동을 주면서 마찰슬립에 의한 소음을 억제하도록 세라믹이 코팅된 것을 특징으로 되어 있으므로, 내식성과 내마모성으로 인한 브레이크드럼의 표면 손상을 미연에 방지하여 브레이크드럼의 초기 사용이나 또는 장기간 사용할 때 브레이크 토크를 낮추어 마찰슬립 소음을 없앰과 동시에 세탁기의 사용환경이 수분이 많은 곳에서도 녹발생이 발생되지 않게 할수 있는 것이다.In the washing machine brake drum surface treatment method according to the present invention, the washing machine is provided with a brake drum in close contact with the brake lining of the brake band so that the rotation of the dehydration tank is stopped during dehydration stop or washing, the outer peripheral surface of the brake drum Since the brake lining is closely adhered to each other, the ceramic is coated to suppress noise caused by friction slip while giving uniform braking, thereby preventing the surface damage of the brake drum due to corrosion resistance and abrasion resistance. The brake torque can be lowered during use or long-term use to eliminate friction slip noise and prevent rust from occurring even in a place where the operating environment of the washing machine is high in moisture.

Description

세탁기용 브레이크드럼의 표면처리방법Surface treatment method of washing drum for washing machine

본 발명은 세탁기의 브레이크드럼에 관한 것으로써, 더욱 상세하게는 브레이크밴드와 맞닿는 브레이크드럼을 표면처리하여 브레이크의 특성을 향상시켜 소음을 억제시키도록 한 세탁기용 브레이크드럼의 표면처리방법에 관한 것이다.The present invention relates to a brake drum of a washing machine, and more particularly, to a surface treatment method of a brake drum for a washing machine in which surface treatment of a brake drum in contact with the brake band improves the characteristics of the brake to suppress noise.

종래에 의한 세탁기는, 제1도 내지 제3도에 도시한 바와 같이, 세탁기내에 설치된 세탁조(2)의 내측에는 탈수조(6)가 회전가능케 설치되어 있고, 상기 탈수조(6)의 내측에는 세탁시 그 내의 세탁물을 교반시키는 교반수단(6)이 설치어 있다.In the conventional washing machine, as shown in FIGS. 1 to 3, a dewatering tank 6 is rotatably provided inside the washing tank 2 provided in the washing machine, and inside the dewatering tank 6. Stirring means 6 for stirring the laundry therein is provided.

상기 세탁조(2)의 하부에는 상기 탈수조(6) 및 교반수단(7)의 중심에 결착되어 구동시키는 수동수단이 설치되어 있다.The lower part of the washing tank 2 is provided with manual means for binding and driving in the center of the dehydration tank (6) and the stirring means (7).

즉, 상기 구동수단은 상기 세탁조(2)의 하단에 인가된 전원에 의해 구동축(20)을 회전시키는 동력발생수단(10)과, 세탁시 상기 구동축(20)의 회전을 감속시켜 종동축(21)에 전달하도록 상기 동력발생수단(10)의 상부에 설치된 감속수단(30)과, 상기 종동축(21)으로 전달되는 동력을 단절 연결시키도록 상기 동력발생수단(10과 감속수단(30)의 사이에 설치된 동력절환수단(40)으로 구성되어 있다.That is, the driving means is a power generating means (10) for rotating the drive shaft 20 by the power applied to the lower end of the washing tank (2), and the driven shaft (21) by reducing the rotation of the drive shaft (20) during washing Of the power generating means 10 and the deceleration means 30 to disconnect the power transmitted to the driven shaft 21 and the deceleration means 30 installed on the upper portion of the power generating means 10 so as to transmit the power to the driven shaft 21. It consists of the power switching means 40 provided in between.

여기서, 상기 동력발생수단(10)은 인가된 전원에 의해 자장을 형성하는 고정자(11)와, 상기 고정자(11)에 형성된 자장에 의해 회전하는 회전자(12)로 이루어져 있다.Here, the power generating means 10 is composed of a stator 11 to form a magnetic field by the applied power, and a rotor 12 to rotate by the magnetic field formed on the stator (11).

이때, 상기 고정자(11) 회전자(12)의 상하부에는 서로 체결부재(99)를 매개로 결착됨과 동시에 그 각각의 중심부에 상기 구동축(20)의 회전이 원활하도록 하는 볼베어링(13)이 삽입된 상부 및 하부하우징(14)(15)이 설치되어 있다.At this time, the upper and lower parts of the rotor 12, the rotor 12 is fastened to each other via a fastening member 99 and at the same time the ball bearing 13 for smoothly rotating the drive shaft 20 in each of the center is inserted Upper and lower housings 14 and 15 are provided.

상기 감속수단(30)은 내주면에 치형이 형성된 내접기어(31)와, 상기 내접기어(31)의 치형과 맞물려 회전하도록 내측에 다수개 설치된 유성기어(32)와, 상기 다수개의 우성기어(32)의 중심축(32a)을 연결하는 캐리어(33)로 구성되어 있다.The deceleration means 30 includes internal gears 31 having teeth formed on the inner circumferential surface, planetary gears 32 installed in a plurality so as to rotate in engagement with teeth of the internal gears 31, and the plurality of dominant gears 32. It consists of the carrier 33 which connects the central axis 32a of ().

또한, 상기 감속수단(30)의 외측에는 상기 종동축(21) 및 구동축(20)의 내측둘레에 삽입된 부싱(98)을 개재하여 브레이크드럼(34) 및 컨넥터(35)가 회전 가능케 설치되어 있고, 상기 컨넥터(35)의 하단 외주면에는 볼베어링(36)이 압입된 하부케이스(37)가 설치되어 있으며, 상기 하부케이스(37)의 상측에는 상기 브레이크드럼(34)의 상측 외주면과의 사이에 볼베어링(36)이 압입된 상부케이스(38)가 결착되어 있다.In addition, the brake drum 34 and the connector 35 are rotatably installed on the outside of the deceleration means 30 via a bushing 98 inserted into the inner circumference of the driven shaft 21 and the driving shaft 20. The lower case 37 of which the ball bearing 36 is press-fitted is installed on the lower outer circumferential surface of the connector 35, and the upper case of the lower case 37 is disposed between the upper outer circumferential surface of the brake drum 34 and the lower case 37. The upper case 38 into which the ball bearing 36 is press-fitted is attached.

상기 동력절환수단(40)은 상기 브레이크드럼(34)의 외측둘레에 브레이크레버(41)가 동작될 때 상기 브레이크드럼(34)을 잡고 있던 결속력이 풀리도록 설치된 브레이크밴드(42)와, 상기 상부하우징(14)에 세워진 지지브라켓(43)에 일측이 힌지결합되고 타측이 롤러부재(44)가 결합되어 시이소운동하도록 된 클러치레버(45)와, 상기 컨넥터(35)의 하단에 치형맞춤되어 회전가능케 결합되고 상기 클러치레버(45)의 시이소운동에 의해 상하로 이동에 의해 하단의 하부클러치(46)와 이탈 및 맞물리면서 동력을 단속하는 상부클러치(47)와, 상기 상부클러치(47)의 내측요흠에 설치되어 상기 클러치레버(45)의 동작에 의해 세탁시에는 압축되고 탈수시에는 탄발되어 상기 상부클러치(47)를 하강시키면서 하부클러치(46)와 맞물리도록 작용하는 스프링(48)로 이루어져 있다.The power switching means 40 has a brake band (42) installed on the outer circumference of the brake drum (34) so as to release the binding force holding the brake drum (34) when the brake lever (41) is operated. One side is hinged to the support bracket 43 standing on the housing 14 and the other side of the roller lever 44 is coupled to the clutch lever 45 and the toothed movement to the lower end of the connector 35, the tooth is rotated The upper clutch 47 and the inner clutch of the upper clutch 47 which are coupled to each other and are coupled to the clutch lever 45 to move up and down by the seesaw movement of the clutch and the lower clutch 46 to be separated and engaged with the lower clutch, are engaged. It is installed in the spring by the operation of the clutch lever 45 is compressed and dehydrated during dehydration is made of a spring 48 to act to engage the lower clutch 46 while lowering the upper clutch 47.

이때, 상기 브레이크드럼(34)의 표면(외주면)에는 상기 브레이크밴드(42)의 내면에 부착된 브레이크라이닝(42a)과 긴밀하게 밀착되도록 다크로코팅 (Dacro; Al-Cr분말코팅)이나 또는 Z-코팅(Zn)분말코팅)에 의해 표면처리면(34a)이 형성되어 있다.At this time, the surface (outer circumferential surface) of the brake drum 34 is made of a dark coating (Dacro; Al-Cr powder coating) or Z to be in close contact with the brake lining 42a attached to the inner surface of the brake band 42. The surface treatment surface 34a is formed by coating (Zn) powder coating).

그러나, 이와 같이 구성된 종래의 세탁기용 브레이크드럼의 표면처리방법은, 브레이크드럼(34)의 표면에 방청효과가 뛰어나고 녹발생을 억제시키도록 널리 알려진 다크로코팅이나 또는 Z-코팅 처리가 되어 있으나, 여기서 다크로코팅은 박리강도가 약하여 조기에 표면처리면(34a)이 박리될 뿐만 아니라 박리된 코팅분말이 구조상 브레이크밴드(42)의 밖으로 유출되지 못하고 브레이크라이닝(42a)의 표면에 부착됨에 따라 제동시 코팅분말과 브레이크드럼(34)이 접촉하는 형태로 변형되어 제동성능이 균일하지 못함으로써 세탁기의 대용량화와 고속 탁수 개발에 치명적인 결합이 될 수 있다.However, the conventional method for treating the surface of a brake drum for a washing machine configured as described above has a well known anti-corrosion effect on the surface of the brake drum 34 and is well known to have a dark coating or Z-coating treatment to suppress rust. Here, the dark coating has a weak peeling strength, so that the surface-treated surface 34a is peeled off early, and the coated powder is braked as it is attached to the surface of the brake lining 42a without being leaked out of the brake band 42. When the coating powder and the brake drum 34 are deformed to be in contact with each other, the braking performance is not uniform, which may be a fatal combination in the development of a large-capacity washing machine and high-speed turbid water.

특히, 이와 같이 코팅된 브레이크드럼(34)을 초기 사용시에는 브레이크드럼(34)의 표면처리면(34a)과 브레이크라이닝(42a)이 서로 접촉될 때 발생되는 마찰슬립 소음이 없었으나, 장기간 사용시에는 내식성 및 내마모성이 부족하여 표면이 쉽게 손상되어 마찰계수를 변화시키고, 급격한 마찰계수의 변화로 인하여 브레이크밴드(42)의 특성인 뺀드의 감김각도가 커져서 브레이크 토크(Torque)를 상승시킴과 동시에 마찰슬립 소음을 일으키게 되며, 세탁기의 사용환경이 수분이 많은 곳이기 때문에 녹발생이 쉽게 발생된다는 문제점이 있었다.In particular, when the coated brake drum 34 is initially used, there is no friction slip noise generated when the surface treatment surface 34a and the brake lining 42a of the brake drum 34 come into contact with each other. The surface is easily damaged due to lack of corrosion resistance and abrasion resistance, and the friction coefficient is changed, and the winding angle of the mind, which is the characteristic of the brake band 42, is increased due to the rapid change of the friction coefficient, thereby increasing the brake torque and at the same time friction slip. There is a problem that the noise is generated, because rust occurs easily because the operating environment of the washing machine is a lot of water.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로써, 본 발명의 목적은 안정적인 제동력을 위해 마찰재가 가지는 고유특성이 끝까지 유지되도록 브레이크드럼을 표면처리하여, 내식성과 내마모성으로 인한 브레이크드럼의 표면 손상을 미연에 방지하고, 브레이크드럼의 초기 사용이나 또는 장기간 사용할 때 브레이크 토크를 낮추어 마찰슬립 소음을 없앰과 동시에 세탁기의 사용환경이 수분이 많은 곳에서도 녹발생이 발생되지 않도록 한 세탁기용 브레이크드럼의 표면처리방법을 제공하는 데 있다.Accordingly, the present invention has been made to solve the above problems, the object of the present invention is to surface the brake drum to maintain the inherent characteristics of the friction material for a stable braking force, the brake drum due to corrosion resistance and wear resistance Washing machine brake that prevents surface damage in advance, reduces brake torque during initial use of brake drum or long-term use, eliminates friction slip noise, and prevents rust from occurring even when the operating environment of the washing machine is wet. To provide a surface treatment method of the drum.

상기와 같은 목적을 실현하기 위하여 이루어진 본 발명에 의한 세탁기용 브레이크드럼의 표면처리방법은, 탈수정지시 또는 세탁시 탈수조의 회전이 정지되도록 브레이크밴드의 브레이크라이닝과 밀착되는 브레이크드럼을 구비한 세탁기에 있어서, 상기 브레이크드럼의 외주 표면에는 상기 브레이크라이닝이 긴밀하게 밀착되어 균일한 제동력을 주면서 마찰슬립에 의한 소음을 억제하도록 세라믹이 코팅된 것을 특징으로 한다.Surface treatment method for a brake drum for a washing machine according to the present invention made to achieve the above object, in the washing machine having a brake drum in close contact with the brake lining of the brake band to stop the rotation of the dehydration tank during dehydration stop or washing. In the outer peripheral surface of the brake drum is characterized in that the ceramic is coated so that the brake lining is in close contact with each other to give a uniform braking force while suppressing noise due to friction slip.

제1도는 종래에 의한 세탁시에 구동장치를 도시한 종단면도.1 is a longitudinal sectional view showing a driving device in the conventional laundry.

제2도는 종래에 의한 브레이크드럼의 동작상태를 도시한 평면도.2 is a plan view showing an operating state of a conventional brake drum.

제3도는 종래에 의한 브레이크드럼을 도시한 단년도,3 is a single year showing a conventional brake drum,

제4도는 본 발명에 의한 브레이크드럼이 표면처리된 상태를 도시한 단면도이다.4 is a cross-sectional view showing a state in which the brake drum according to the present invention is surface-treated.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

34 : 브레이크드럼 34b : 요철면34: brake drum 34b: uneven surface

42 : 브레이크밴드 42a : 브레이크라이닝42: brake band 42a: brake lining

100 : 세라믹100: ceramic

이하, 본 발명의 일실시예에 관하여 첨부된 도면을 참조하면서 상세히 설명한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

참고로, 종래의 구성과 동일한 구성에 대해서는 동일명칭 및 동일부호를 부여하고, 그에 대한 상세한 설명은 생략한다.For reference, the same configuration and the same reference numerals are used for the same configuration as the conventional configuration, and detailed description thereof will be omitted.

제4도에 도시한 바와 같이, 상기 브레이크드럼(34)의 표면에는 탈수정지시나 또는 세탁시 상기 브레이크밴드(42)의 내면에 부착된 브레이크라이닝(42a)이 긴밀하게 밀착되어 균일한 제동력을 주면서 마찰슬립에 의한 소음을 억제하도록 세라믹(100)이 코팅되어 있다.As shown in FIG. 4, a brake lining 42a attached to the inner surface of the brake band 42 is in close contact with the surface of the brake drum 34 during dehydration stop or washing, giving a uniform braking force. Ceramic 100 is coated to suppress noise caused by friction slip.

이때, 상기 브레이크드럼(34)의 외주 표면에는 상기 세라믹(100)이 용이하게 코팅처리되어 밀착 성형되도록 숏 블라스팅(Shot Blasting)이나 또는 그릿 블라스팅(Grit Blasting)방법에 의해 조도(표면 거칠기)가 10-20S를 갖는 요철면(34b)이 형성되어 있다.At this time, the roughness (surface roughness) of the brake drum 34 is 10 by a shot blasting or a grit blasting method such that the ceramic 100 is easily coated and closely molded. The uneven surface 34b having -20S is formed.

이와 같이 상기 브레이크드럼(34)에 세라믹(100)을 코팅시 종래의 열처리방법(예컨대, 가스 연질화나 또는 염욕질화법)에 의해 표면 경도가 약500Hv이하로 유지되는 것에 비해, 본 발명은 상기 세라믹(100) 코팅후 표면 경도가 약 800Hv이상으로 높아짐으로 장기간 사용하더라도 최초 코팅처리시 내마모성 표면을 지속적으로 유지할수 있다.As described above, when the ceramic drum 100 is coated on the brake drum 34, the surface hardness is maintained at about 500 Hv or less by a conventional heat treatment method (for example, gas soft nitriding or salt bath nitriding). (100) The surface hardness after coating is increased to about 800 Hv or more, so even after long-term use, the wear resistant surface can be continuously maintained during the initial coating treatment.

또, 상기 세라믹(100)은 산화물이므로 부식 및 녹이 발생되지 않는 장점이 있을 뿐만 아니라 브레이크드럼(34)에 코팅된 후 별도로 열처리 공정을 거치지 않아도 됨은 물론이고, 이로 인해서 공정수를 단축 및 원가를 절감할 수 있다.In addition, since the ceramic 100 is an oxide, not only does it cause corrosion and rust, but also does not need to be separately heat treated after being coated on the brake drum 34, thereby reducing the number of processes and reducing costs. can do.

앞에서 설명한 바와 같이, 본 발명에 의한 세탁기용 브레이크드럼의 표면처리방법에 의하면, 브레이크드럼의 외주표면이 세라믹으로 코팅처리되어 있기 때문에 내식성과 내마모성으로 인한 브레이크드럼의 표면 손상을 미연에 방지하여 브레이크드럼의 초기 사용이나 또는 장기간 사용할 때 브레이크 토크를 낮추어 마찰슬립 소음을 없앰과 동시에 세탁기의 사용환경이 수분이 많은 곳에서도 녹발생이 발생되지 않게 할수 있는 효과가 있다.As described above, according to the surface treatment method of the brake drum for a washing machine according to the present invention, since the outer peripheral surface of the brake drum is coated with ceramic, the brake drum is prevented by preventing the surface damage of the brake drum due to corrosion resistance and abrasion resistance. When the initial use or long-term use of the brake torque is lowered to eliminate the friction slip noise and at the same time there is an effect that the rust does not occur even in a place where the operating environment of the washing machine has a lot of moisture.

Claims (3)

탈수정지시 또는 세탁시 탈수조의 회전이 정지되도록 브레이크밴드의 브레이크라이닝과 밀착되는 브레이크드럼을 구비한 세탁기에 있어서, 상기 브레이크드럼의 외주 표면에는 상기 브레이크라이닝이 긴밀하게 밀착되어 균일한 제동력을 주면서 마찰슬립에 의한 소음을 억제하도록 세라믹이 코팅된 것을 특징으로 하는 세탁기용 브레이크드럼의 표면처리방법.In a washing machine having a brake drum that is in close contact with the brake lining of the brake band to stop the rotation of the dehydration tank when dehydration stop or washing, the brake lining is in close contact with the outer circumferential surface of the brake drum to give a uniform braking force and friction Surface treatment method for a brake drum for a washing machine, characterized in that the ceramic is coated to suppress the noise caused by slip. 제1항에 있어서, 상기 브레이크드럼의 외주 표면에는 상기 세라믹이 용이하게 코팅처리되어 밀착 성형되도록 요철면이 형성된 것을 특징으로 하는 세탁기용 브레이크드럼의 표면처리방법.The surface treatment method of a brake drum for a washing machine according to claim 1, wherein an uneven surface is formed on an outer circumferential surface of the brake drum so that the ceramic is easily coated to form a close contact. 제2항에 있어서, 상기 요철면은 숏 블라스팅이나 또는 그릿 블라스팅방법 중에서 선택된 그 어느 하나로 형성된 것을 특징으로 하는 세탁기용 브레이크드럼의 표면처리방법.3. The surface treatment method of a brake drum for a washing machine according to claim 2, wherein the uneven surface is formed by any one selected from a shot blasting method or a grit blasting method.
KR1019970055410A 1997-10-27 1997-10-27 A surface treatment method for brake drum of washing machine KR100231051B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286695A (en) * 2013-05-09 2013-09-11 湖北全力众诚汽配制造有限责任公司 Surface treatment process for brake drum

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010114091A (en) * 2000-06-21 2001-12-29 구자홍 method for manufacturing break drum in washer
KR100720540B1 (en) * 2000-12-05 2007-05-22 엘지전자 주식회사 Apparatus for driving washing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286695A (en) * 2013-05-09 2013-09-11 湖北全力众诚汽配制造有限责任公司 Surface treatment process for brake drum

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