KR100393988B1 - Composition of rail structure in color crt - Google Patents
Composition of rail structure in color crt Download PDFInfo
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- KR100393988B1 KR100393988B1 KR10-2000-0018681A KR20000018681A KR100393988B1 KR 100393988 B1 KR100393988 B1 KR 100393988B1 KR 20000018681 A KR20000018681 A KR 20000018681A KR 100393988 B1 KR100393988 B1 KR 100393988B1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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Abstract
본 발명은 칼라음극선관의 새도우마스크를 지지하는 레일 결합체에 대한 합금조성의 제조원가를 저렴하게 함과 함께 강도를 향상시켜 음극선관의 제조공정에서 불량을 최소화할 수 있는 레일 결합체의 합금조성에 관한 것이다.The present invention relates to the alloy composition of the rail assembly that can minimize the defects in the manufacturing process of the cathode ray tube while improving the strength of the alloy composition for the rail assembly for supporting the shadow mask of the color cathode ray tube at a low cost .
이에 대한 구성은 100중량%로서, 크롬(Cr) 22∼27 중량 %이고, 불가피한 불순물로 탄소 (C)≤0.02%, 규소(Si)≤0.40%, 망간 (Mn)≤0.40%, 인(P)≤0.02%이고, 필요에 따라 몰리브덴 (Mo)을 첨가하고, 나머지는 철(Fe)로 조성된 음극선관용 레일 구조체의 조성물에 관한 기술이다.The composition is 100% by weight, chromium (Cr) 22-27% by weight, carbon (C) ≤ 0.02%, silicon (Si) ≤ 0.40%, manganese (Mn) ≤ 0.40%, phosphorus (P) as inevitable impurities ) Is 0.02%, molybdenum (Mo) is added if necessary, and the remainder is a technique related to the composition of the rail structure for cathode ray tubes composed of iron (Fe).
Description
본 발명은 칼라음극선관의 새도우마스크를 지지하는 레일결합체에 관한 것으로, 특히 레일 결합체를 이루는 합금조성의 제조원가를 저렴하게 함과 함께 강도를 향상시켜 음극선관의 제조공정에서 불량을 최소화할 수 있는 레일 결합체의 합금조성에 관한 것이다.The present invention relates to a rail assembly for supporting a shadow mask of a color cathode ray tube, and in particular, to reduce the manufacturing cost of the alloy composition constituting the rail assembly and to improve the strength, thereby reducing the defect in the cathode ray tube manufacturing process. It relates to the alloy composition of the binder.
종래의 평면 칼라음극선관은 도 1과 같이, 방폭 특성을 가진 방폭유리(2)가 고정되어 있는 패널(3)과 상기 패널에 융착되는 펀넬(4)과 상기 펀넬(4)에 봉입되어 적, 녹, 청 3개의 전자빔(6)을 패널(3)쪽으로 방사시키는 전자총(7)과 상기 패널 (3)내면에는 적, 녹, 청 3색의 형광체가 도포되어 있어서 전자빔(6)에 의해 각각의 색을 발광하게 하는 형광막(1)이 형성되어 있고, 상기 패널(3)에는 공극형상의 가는 구멍(Slot)이 무수히 뚫린 새도우마스크(8)가 패널(3)내면과 일정한 간격을 유지하도록 지지하는 레일(9)로 구성되어 있다. 이 레일(9)은 새도우마스크(8)의 인장력을 견딜수 있도록 도 2와 같이 프리트글라스(11)에 의해 패널(3)에 융착되어 레일 결합체가 된다.A conventional flat color cathode ray tube is enclosed with a panel 3 on which an explosion-proof glass 2 having explosion-proof properties is fixed, a funnel 4 fused to the panel, and the funnel 4 as shown in FIG. Electron gun 7 for emitting three green and blue electron beams 6 to the panel 3 and phosphors of three colors red, green and blue are coated on the inner surface of the panel 3 so that the electron beam 6 A fluorescent film 1 for emitting color is formed, and the panel 3 is supported by a shadow mask 8 having numerous pores in the shape of pores so as to maintain a constant distance from the inner surface of the panel 3. The rail 9 is comprised. The rail 9 is fused to the panel 3 by the fritted glass 11 as shown in FIG. 2 to withstand the tensile force of the shadow mask 8 to form a rail assembly.
그리고 형광막측으로 진행하는 전자빔을 외부자계로 보호하는 자기쉴드(10)등으로 구성되어 있다.And a magnetic shield 10 for protecting the electron beam traveling to the fluorescent film side with an external magnetic field.
상기 구성에 따라 음극선관에 전원이 인가되면 펀넬(4)의 네크부에 봉입된 전자총(7)으로 부터 전자빔(6)이 방사되고, 방사된 전자빔은 복수개의 전극을 차례로 통과 하면서 가속 및 집속된 다음 새도우마스크(8)의 구멍(Slot)을 통과하면서 색선별이 이루어진 상태에서 패널(3)의 내면에 도포된 형광막(1)을 타격하게 되므로 화상이 재현된다.According to the configuration, when power is applied to the cathode ray tube, the electron beam 6 is radiated from the electron gun 7 enclosed in the neck portion of the funnel 4, and the emitted electron beam is accelerated and focused while passing through the plurality of electrodes in sequence. Next, the fluorescent film 1 applied to the inner surface of the panel 3 is hit while passing through the slots of the shadow mask 8, and the image is reproduced.
상기한 구조에서 레일 결합체는 도 3과 같이 2개의 장축레일(9a)과 2개의 단축레일(9b), 4개의 엔드캡(9c)으로 용접연결되어 사각형의 구조를 갖는다.In the above-described structure, the rail assembly is welded with two long shaft rails 9a, two short rails 9b, and four end caps 9c as shown in FIG. 3 to have a rectangular structure.
이 사각 레일결합체의 빈공간에 프리트분말(Frit Powder)와 비히클(Vehicle)로 혼합 제조된 프리트글라스(Frit Glass)를 채우고 노(爐)안에서 패널(3)과 융착시킨다. 상기 융착된 레일 결합체는 패널(3)과 새도우마스크(8)의 일정한 간격을 유지하기 위하여 레일 결합체의 상면을 연삭한다.The empty space of the square rail assembly is filled with frit glass made of a mixture of frit powder and vehicle and fused with the panel 3 in a furnace. The fused rail assembly grinds the upper surface of the rail assembly in order to maintain a constant distance between the panel 3 and the shadow mask 8.
상기 레일 결합체가 융착된 패널은 도포공정을 거쳐 패널 내면에 형광체를입힌 후 새도우마스크를 인장하여 레일 결합체 상면에 정확한 위치를 조정하여 용접한다. 이후에 패널(3)과 펀넬(4)이 결합되고 전자총(7) 삽입공정을 거쳐서 배기된다.The panel in which the rail assembly is fused is coated with a phosphor on the inner surface of the panel through an application process, and then the shadow mask is tensioned to adjust the exact position on the upper surface of the rail assembly. Thereafter, the panel 3 and the funnel 4 are combined and exhausted through the electron gun 7 insertion process.
상기 레일(9)은 일반적으로 크롬(Cr)이 28∼29중량%이고 나머지는 철(Fe) 로 조성되는데, Cr은 Fe에 비해 7∼8배 정도의 고가(高價)로서 Cr함량이 많음에 따라 제조원가의 상승요인이 되고 있음과 함께 Cr의 질김 특성으로 인해 레일 그라인딩( Grinding)성이 좋지 않다. 그리고 高Cr강은 제강공정 중 정련과정에서 크롬산화물 형성으로 어려움을 격고 압연 후 산세처리에서 산세가 잘 되지 않는 어려움이 있으며, 경도 값이 낮아서 음극선관 제조공정 중 변형이 일어나는 문제점이 있다.The rail (9) is generally 28 to 29% by weight of chromium (Cr) and the remainder is composed of iron (Fe), Cr is 7 to 8 times higher than that of Fe (Col) is high in Cr content As a result, manufacturing costs are rising, and due to the toughness of Cr, rail grinding is not good. In addition, high Cr steels have difficulty in forming chromium oxide in the refining process during the steelmaking process and have difficulty in pickling in the pickling process after rolling, and there is a problem in that deformation occurs during the cathode ray tube manufacturing process due to low hardness.
본 발명은 상기한 종래의 문제점을 해결하기 위한 것으로, Cr량을 줄이고 타원소를 적절히 배합시킴으로써 저렴한 제조원가를 갖음과 함께 음극선관의 열처리 공정을 거치면서 일어나는 레일의 산화로 인한 음극선관에 이물질로 작용하는 불필요한 산화물 생성을 방지하는 등 기계적 성질을 좋게하여 제조공정 중 경도값이 낮아서 발생하는 레일의 변형을 방지할 수 있는 레일 조성물을 제공하고자 하는데 그 목적이 있다.The present invention is to solve the above-mentioned problems, and to reduce the amount of Cr and to properly blend the other elements to have a cheap manufacturing cost and to act as a foreign material to the cathode ray tube due to the oxidation of the rail that occurs during the heat treatment process of the cathode ray tube An object of the present invention is to provide a rail composition capable of preventing deformation of a rail caused by low hardness value during the manufacturing process by improving mechanical properties such as preventing unnecessary oxide formation.
도 1은 칼라음극선관의 구조도1 is a structural diagram of a color cathode ray tube
도 2는 패널에 레일을 고정시키는 과정을 나타낸 개략도Figure 2 is a schematic diagram showing a process of fixing the rail to the panel
도 3은 패널에 레일이 고정된 상태의 사시도Figure 3 is a perspective view of the rail fixed to the panel
도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings
3 : 패널 8 : 새도우마스크 9 : 레일3: panel 8: shadow mask 9: rail
상기한 목적을 달성하기 위한 본 발명의 제 1발명은 철(Fe)이 주성분이고, 크롬(Cr)이 22∼27 중량 %이고, 불가피한 불순물을 포함하여서된 음극선관용 레일구조체의 조성물로 이루어진다The first invention of the present invention for achieving the above object consists of a composition of a rail structure for cathode ray tubes containing iron (Fe) as the main component, chromium (Cr) is 22 to 27% by weight, and contains inevitable impurities.
또한 본 발명의 제 2발명은 상기한 제 1발명의 전체조성에 대하여 몰리브덴(Mo)1∼3중량% 첨가되고 그외의 조성은 모두 동일하다.In the second invention of the present invention, molybdenum (Mo) is added in an amount of 1 to 3% by weight based on the total composition of the first invention, and all other compositions are the same.
본 발명은 상기한 제 1발명 및 제 2발명에서 불가피한 불순물은 탄소(C) ≤ 0.02중량%, 규소(Si)≤0.40중량%, 망간(Mn)≤0.40중량%, 인(P)≤0.02중량% 포함하여서된 음극선관용 레일구조체의 조성물로 구성된다.In the present invention, the inevitable impurities in the first and second inventions include carbon (C) ≤ 0.02 weight%, silicon (Si) ≤ 0.40 weight%, manganese (Mn) ≤ 0.40 weight%, phosphorus (P) ≤ 0.02 weight It consists of the composition of the rail structure for the cathode ray tube containing%.
또한 본 발명은 상기한 불순물을 포함한 제 1발명에 대하여, 크롬(Cr) 25∼27중량%, 몰리브덴 (Mo) 1∼3중량%, 니켈(Ni) ≤ 0.5중량%, 티타늄(Ti)≤0.2중량% 포함하여 조성된 음극선관용 레일구조체의 조성물로 구성시킴이 바람직하다.The present invention also relates to 25 to 27% by weight of chromium (Cr), 1 to 3% by weight of molybdenum (Mo), nickel (Ni) ≤ 0.5% by weight and titanium (Ti) ≤ 0.2 with respect to the first invention containing the above impurity. It is preferable to configure the composition of the rail structure for the cathode ray tube including the wt%.
또한 본 발명은 상기한 불순물을 포함한 제 1발명에 대하여, 크롬(Cr) 22∼24중량%, 몰리브덴(Mo) 1∼3중량% , 니켈(Ni) ≤ 0.25중량%, 티타늄(Ti)≤0.3 중량% 포함하여 조성된 음극선관용 레일구조체의 조성물로 구성시킴이 더욱 바람직하다.In the present invention, the chromium (Cr) 22 to 24% by weight, molybdenum (Mo) 1 to 3% by weight, nickel (Ni) ≤ 0.25% by weight, titanium (Ti) ≤ 0.3 with respect to the first invention containing the above impurity It is more preferable to configure the composition of the rail structure for the cathode ray tube including the wt%.
이상과 같이 종래의 경우는 고가의 Cr함량을 28중량% 이상 사용함으로써 제조원가의 상승요인이 되고 있음은 물론 Cr함량의 증대에도 불구하고 인장강도 및 경도의 특성이 불충분 하였으나 , 본 발명은 Cr함량을 27중량% 이하로 줄임과 함께 몰리브덴 등의 원소를 적절히 배합시킴으로써, 저렴한 제조원가를 갖음과 함께 음극선관의 열처리 공정을 거치면서 일어나는 레일의 산화로 인한 음극선관내 이물질로 작용하는 불필요한 산화물 생성을 방지하고, 기계적 성질의 개선으로 레일의 변형을 방지하는 등의 특성을 갖는 레일 조성물이 제공된다.As described above, in the conventional case, the use of expensive Cr content is more than 28% by weight, which increases the manufacturing cost, and in spite of the increase in Cr content, the tensile strength and hardness are insufficient. By reducing the weight to 27% by weight or less and properly blending elements such as molybdenum, it has an inexpensive manufacturing cost and prevents the generation of unnecessary oxides acting as foreign substances in the cathode ray tube due to the oxidation of the rail which occurs during the heat treatment process of the cathode ray tube. Improvement in mechanical properties provides a rail composition having properties such as preventing deformation of the rail.
다음은 실시예에 따라 설명한다.The following is described according to the embodiment.
하기 (표1)과 같은 화학조성을 갖는 합금으로 레일 성형(Rail Forming)후 580∼1,150℃온도 범위에서 1∼30분간 가열 후 냉각시켜 기계적 특성을 측정하였다.The alloy having a chemical composition as shown in Table 1 below, after rail forming, was heated for 1 to 30 minutes in a temperature range of 580 to 1,150 ° C., and then cooled to measure mechanical properties.
비교발명 1Comparative invention 1
비교발명1의 경도를 측정 결과 HrB 110-15의 값을 얻을 수 있었으나, 열처리온도 950℃이상에서는 경도 값이 낮아져 음극선관 제조공정에서 변형을 초래하는 문제가 야기된다. 또한 재료의 열팽창계수는 11.5E-6정도의 열팽창 계수 값으로 글라스의 10.5E-6 at 30-400℃와 비교하면 9.5% 정도 높은 값을 가지고 있어서 17" 음극선관 까지는 제조가 가능하지만 그 이상은 공정 중에서 균열 발생 빈도가 높아서 사용상의 어려움이 있다.As a result of measuring the hardness of Comparative Invention 1, a value of HrB 110-15 was obtained, but the hardness value was lowered at the heat treatment temperature of 950 ° C. or higher, causing deformation in the cathode ray tube manufacturing process. In addition, the coefficient of thermal expansion of the material is about 11.5E-6, which is about 9.5% higher than that of glass at 10.5E-6 at 30-400 ℃, making it possible to manufacture up to 17 "cathode ray tubes. There is a difficulty in use because of the high frequency of cracking during the process.
비교발명 2, 3Comparative Invention 2, 3
비교발명2,3 경우의 경도를 측정한 결과 HrB 110-40의 값을 얻을 수 있었다. 그리고 열팽창 계수는 11.3E-6(at 30-300℃)정도이고, 글라스의 10.5E-6 at 30-400℃와 비교하면 7.6% 정도 높은 값을 가지고 있어서 칼라음극선관에 적용 가능하나, (표2)에서와 같이 종래와 동일한 공정 조건을 적용할 경우 21" 이상에서 50% 정도의 균열을 발생시키고 15"∼17"에서는 균열을 발생시키지 않으므로 15"∼17"의 한정된 제품에 적용할 수 있다.As a result of measuring the hardness of the comparative inventions 2 and 3, the value of HrB 110-40 was obtained. And the coefficient of thermal expansion is about 11.3E-6 (at 30-300 ℃) and 7.6% higher than 10.5E-6 at 30-400 ℃ of glass, so it is applicable to color cathode ray tube. As in 2), if the same process conditions are applied as in the prior art, cracks of about 50% are generated at 21 "or more and cracks are not generated at 15" to 17 ". Therefore, they can be applied to limited products of 15" to 17 ". .
실시예 1Example 1
실시예 1에 대한 경도값을 측정한 결과 HrB 85-102의 값을 얻을 수 있었다.As a result of measuring the hardness value of Example 1, the value of HrB 85-102 was obtained.
따라서 이 값은 음극선관 제조공정 상에서 문제없이 사용되어질 수 있는 값이다. 또한 재료의 열팽창계수는 11.2-6(at 30-300℃)정도이고, 글라스의 10.5E-6 at 30-400℃와 비교하면 6.7%정도 높은 값을 가지고 있어서 칼라음극선관에 적용 가능하나 (표2)에서와 같이 종래와 동일한 공정 조건을 적용할 경우 21"이상에서 약 7%정도의 균열을 발생시키고 15"∼19"에서는 균열을 발생시키지 않음으로 15"∼19"제품에 적용할 수 있다.Therefore, this value can be used without problems in the cathode ray tube manufacturing process. In addition, the coefficient of thermal expansion of the material is 11.2-6 (at 30-300 ℃) and 6.7% higher than 10.5E-6 at 30-400 ℃ of glass, so it is applicable to color cathode ray tubes. As in 2), if the same process conditions are applied as before, it can be applied to 15 "to 19" products by generating about 7% of cracks at 21 "or more and not generating cracks at 15" to 19 ". .
실시예 2Example 2
실시예 2에 대한 경도값을 측정한 결과 HrB 88-105의 값을 얻을 수 있었다. 따라서 이 값은 음극선관 제조 공정 상에서 문제없이 사용되어질 수 있는 값이다. 또한 재료의 열팽창계수는 11.0 E-6(at 30-300℃)정도이고, 글라스의 10.5E-6 at30-400℃와 비교하면 4.8%정도 높은 값을 가지고 있고 (표2)에서와 같이 전 모델에서 균열이 전혀 발생하지 않았으므로 칼라음극선관의 모든 크기의 제품에 적용될 수 있었다.As a result of measuring the hardness value for Example 2, it was possible to obtain the value of HrB 88-105. Therefore, this value can be used without problems in the cathode ray tube manufacturing process. In addition, the coefficient of thermal expansion of the material is about 11.0 E-6 (at 30-300 ℃) and 4.8% higher than that of glass at 10.5E-6 at30-400 ℃. There was no crack at, so it could be applied to products of all sizes of colored cathode ray tubes.
이상에서와 같이 비교발명 및 본 발명의 실시예 모두 적용 가능하나 음극선관의 크기에 따라 적용이 제한되므로 바람직하게는 실시예 2인 25∼27% Cr, 2% Mo강이 가장 적합하다.As described above, the present invention is applicable to both the comparative invention and the embodiment of the present invention. However, since the application is limited according to the size of the cathode ray tube, the preferred embodiment 2 is 25-27% Cr and 2% Mo steel.
이상에서 같이 본 발명은 새도우마스크를 지지하는 레일을 구성하는 합금을 저가원소로 조성하여 제조원가를 절감하고, 크롬함량을 낮춤으로써 제강공정에서의 수율을 향상시키고, 새도우마스크 지지구조의 기계적 성질을 높임으로써 음극선관 제조공정에서 불량을 촤소화할 수 있었다. 이와 같은 본 발명은 새도우마스크 지지 구조체의 형상이 어떤 형태에도 새도우마스크 지지 구조체라는 범주에 속하는 모든 형태에 적용 할 수 있다.As described above, the present invention forms an alloy constituting the rail supporting the shadow mask as a low-cost element to reduce the manufacturing cost, improve the yield in the steelmaking process by lowering the chromium content, and improve the mechanical properties of the shadow mask support structure As a result, the defects can be reduced in the cathode ray tube manufacturing process. Such the present invention can be applied to any form in which the shape of the shadow mask support structure belongs to the category of the shadow mask support structure.
Claims (7)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0018681A KR100393988B1 (en) | 2000-04-10 | 2000-04-10 | Composition of rail structure in color crt |
| US09/818,563 US20010039981A1 (en) | 2000-04-10 | 2001-03-28 | Composition of rail structure for supporting shadow mask in color CRT |
| CN01110374A CN1317818A (en) | 2000-04-10 | 2001-04-09 | Components of level beam member for supporting baffle of colour CRT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0018681A KR100393988B1 (en) | 2000-04-10 | 2000-04-10 | Composition of rail structure in color crt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010100289A KR20010100289A (en) | 2001-11-14 |
| KR100393988B1 true KR100393988B1 (en) | 2003-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR10-2000-0018681A KR100393988B1 (en) | 2000-04-10 | 2000-04-10 | Composition of rail structure in color crt |
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| Country | Link |
|---|---|
| US (1) | US20010039981A1 (en) |
| KR (1) | KR100393988B1 (en) |
| CN (1) | CN1317818A (en) |
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| KR100464282B1 (en) * | 2002-02-27 | 2005-01-03 | 엘지.필립스디스플레이(주) | The Color Cathode-Ray Tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4282524A (en) * | 1978-12-20 | 1981-08-04 | Motorola Inc. | Linear Bessel ranging radar |
| US4834686A (en) * | 1987-12-29 | 1989-05-30 | Zenith Electronics Corporation | Rail mapping method and apparatus |
| US6383049B1 (en) * | 1999-01-19 | 2002-05-07 | Lg Electronics Inc. | Method for bonding supporter of shadow mask in flat cathode ray tube |
-
2000
- 2000-04-10 KR KR10-2000-0018681A patent/KR100393988B1/en not_active IP Right Cessation
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2001
- 2001-03-28 US US09/818,563 patent/US20010039981A1/en not_active Abandoned
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| Publication number | Publication date |
|---|---|
| KR20010100289A (en) | 2001-11-14 |
| CN1317818A (en) | 2001-10-17 |
| US20010039981A1 (en) | 2001-11-15 |
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