KR20040107550A - Printing and coating processed embossing steel sheet and it's manufacture method - Google Patents

Printing and coating processed embossing steel sheet and it's manufacture method Download PDF

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Publication number
KR20040107550A
KR20040107550A KR1020030036275A KR20030036275A KR20040107550A KR 20040107550 A KR20040107550 A KR 20040107550A KR 1020030036275 A KR1020030036275 A KR 1020030036275A KR 20030036275 A KR20030036275 A KR 20030036275A KR 20040107550 A KR20040107550 A KR 20040107550A
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South Korea
Prior art keywords
steel sheet
coating
printing
layer
roll
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KR1020030036275A
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Korean (ko)
Inventor
고재상
김도형
김남경
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동부제강주식회사
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Priority to KR1020030036275A priority Critical patent/KR20040107550A/en
Publication of KR20040107550A publication Critical patent/KR20040107550A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE: To provide a color coated steel sheet of which design property as an exterior finishing material is reinforced by forming a three-dimensional structure on the printing and coating processed steel sheet using a metal roll after printing a coated steel sheet, thereby imparting a three-dimensional effect on the steel sheet, and a manufacturing method thereof. CONSTITUTION: The printing and coating processed embossing steel sheet comprises a base steel sheet; a chrome treatment layer formed on the base steel sheet to reinforce corrosion resistance of the steel sheet; a primer coating layer formed on the chrome treatment layer to impart film adhesion property; a ground coating layer formed on the primer coating layer before printing; a barrier coating layer formed on the ground coating layer to impart an overall color; a printing layer having beautiful external appearance and various patterns formed on the barrier coating layer; a top clear coating layer formed on the printing layer to protect the printing layer and reinforce corrosion resistance and processing property; and an emboss forming structure that is embossing treated on the top clear coating layer.

Description

엠보싱 인쇄도장강판 및 그 제조방법{Printing and coating processed embossing steel sheet and it's manufacture method}Printing and coating processed embossing steel sheet and it's manufacture method}

본 발명은 엠보싱인쇄 도장강판 및 그의 제조방법에 관한 것이다. 보다 구체적으로는 롤도장(ROLL COATER)방식으로 도장 및 인쇄처리 후, 다양판 패턴의 무늬가 새겨진 금속롤로 강판을 압하처리하여 인쇄무늬에 입체감을 부여하여서 된 강판 및 그의 제조방법에 관한 것이다.The present invention relates to an embossed printed steel sheet and a method of manufacturing the same. More specifically, the present invention relates to a steel sheet and a manufacturing method thereof by applying a three-dimensional impression to a printed pattern by rolling the steel sheet with a metal roll engraved with a pattern of a variety of plates after painting and printing by a roll coating method.

보다 구체적으로는 본 발명은 강판표면을 전처리로서 통상의 강판표면을 전처리로서 통상의 크롬도장처리를 하고 그 상부에 PCM(Pre-Coating Metal)용 도료를 사용하여 하도도장과 중도도장을 롤 도장방식으로 도장하여 인쇄용 도료를 건조도막이 1∼3미크론 되도록 롤 코팅으로 인쇄처리 하고, 인쇄층을 보호하기 위하여 투명 크리어도료를 롤도장한 후, 다양한 패턴의 무늬가 새겨진 금속롤로 강판을 엠보싱롤로 강판에 180∼220미크론의 깊이로 엠보싱 압하처리하여서 되는 것을 특징으로 하는 도장용융 도금강판의 제조방법 및 제조 된 강판에 관한 것이다.More specifically, in the present invention, the surface of the steel sheet is pretreated, and the surface of the conventional steel sheet is subjected to the usual chromium coating as the pretreatment, and the upper and middle coatings are roll-coated using PCM (Pre-Coating Metal) paint on the upper surface thereof. After printing, the printing paint is printed with a roll coating so that the dry film is 1 to 3 microns, and the transparent clear paint is rolled to protect the printed layer, and then the steel sheet is embossed to the steel plate with an embossing roll. It relates to a method for producing a coated hot-dipped steel sheet and a manufactured steel sheet, characterized in that it is embossed to a depth of ˜220 microns.

현재까지 사용되어 오고 있는 인쇄강판은 강판에 인쇄처리를 하여 줌으로써 강판이 주는 차가운 느낌을 없애주고 있었으나 다양하고 입체감있는 무늬를 나타내주지 못하는 단점이 있었다.Printed steel sheets that have been used to date have eliminated the cold feeling that steel sheets give by printing on steel sheets, but have a disadvantage of not displaying various and three-dimensional patterns.

따라서, 본 발명은 상기와 같은 문제점을 감안하여 창출된 것으로서, 본 발명의 목적은 도장강판의 인쇄처리후에 금속롤을 사용하여 입체적인 구조를 가지게 함으로써 인쇄무늬에 입체감을 부여하여 외장재로써의 의장성을 강화한 칼라도장강판을 제공하는 것을 목적으로 한다.Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a three-dimensional structure to a printed pattern by using a metal roll after a printing process of a coated steel sheet, thereby providing designability as an exterior material. It is an object to provide a reinforced coated steel sheet.

도 1은 본 발명상의 엠보싱 도장인쇄강판의 단면을 확대하여 설명한 설명도이다.1 is an explanatory diagram illustrating an enlarged cross-section of an embossed coated printed steel sheet according to the present invention.

도 2는 본 발명 실시예로서의 메틸실리게이트 5% 함유시 옥외 폭로시험 후의 색차값 비교 막대그라프이다.FIG. 2 is a bar graph comparing color differences after an outdoor exposure test when 5% methyl silicide is contained as an embodiment of the present invention.

도 3은 엠보스 성형 깊이 차이를 안정적으로 관리하기 위한 엠보싱롤의 압축하중별(톤) 굴곡량(bending)을 나타낸 그라프이다.Figure 3 is a graph showing the bending load (ton) by compression load (tone) of the embossing roll for stably managing the embossing depth difference.

이와 같은 목적을 달성하기 위하여, 본 발명은 강판 표면위에 전처리로서 크롬도금처리를 하고, 그 상부표면에 PCM(Pre-Coating Metal)용 도료를 사용하여 하도도장과 중도도장을 한 후 그 상층에 인쇄처리를 하여 여러가지 패턴의 무늬를 부여한 다음, 소정 무늬가 새겨진 금속롤을 이용하여 엠보싱 인쇄를 행하는 것을 요지로 한다. 본 발명자들은 이를 위하여 아래의 세가지 사항에 중점을 두어 발명을 진행하였다. 첫번째로, 강판의 전면 엠보싱처리에 적합한 도료의 개발이다. 강판에 다양하고 입체적인 느낌을 부여하기 위하여는 기존의 편면 엠보싱처리로는 한계가 있어 본 발명에서는 전면 엠보싱처리법을 택하였는데 이를 위해서는 강판의 전면적성형에도 가공성에 저하를 일으키지 않는 도료의 개발이 우선적인 과제였다.In order to achieve the above object, the present invention is subjected to the chromium plating treatment as a pretreatment on the surface of the steel sheet, and to the upper surface and then printed on the upper layer after the undercoat and middle coating using a coating material for PCM (Pre-Coating Metal) The processing is provided with patterns of various patterns, and then embossed printing is performed using a metal roll engraved with a predetermined pattern. The present inventors proceeded the invention focusing on the following three points for this purpose. First, it is the development of the coating material suitable for the full surface embossing process of steel plate. In order to give various and three-dimensional feeling to the steel sheet, the conventional single-sided embossing process has a limitation. In the present invention, the front embossing method is selected. It was.

먼저 도료의 수지설계를 변경하였는데 기존도료의 일반 폴리에스테르/멜라민(POLYESTER/MELAMINE)계를 바탕으로 수지의 배열을 선형 글리콜(LINEAR TYPE GLYCOL), 지방족 모노머(ALIPHATIC MONOMER)와 환상 및 지방족 모리머(CYCLIC & ALIPHATIC MONOMER)를 사용하게 하고 수지의 분자량을 고 폴리머(Hi-POLYMER)수준으로 끌어올려 가공성 향상에 주력하였다. 또한 기존 수지배열의 변경으로 인해 발생할 수 있는 내후성의 열화를 막기 위하여 폴리에스테르/멜라민(POLYESTER/MELAMINE)계 수지에 에폭시(EPOXY)계 수지를 첨가하여서 기존도료의 장점을 해치지 않도록 하였다.First, the resin design of the paint was changed, and the arrangement of the resin was based on the conventional polyester / melamine (POLYESTER / MELAMINE) system. CYCLIC & ALIPHATIC MONOMER) were used and the molecular weight of the resin was raised to the level of high polymer (Hi-POLYMER) to focus on improving processability. In addition, in order to prevent the deterioration of weather resistance that may occur due to the change of the existing resin arrangement, an epoxy (EPOXY) resin is added to the polyester / melamine (POLYESTER / MELAMINE) resin to avoid damaging the advantages of the existing paint.

도 2는 본 발명상의 PCM도료가 일반 RMP도료에 비해 색변화가 확연히 작음을 알 수 있다.2 shows that the PCM paint of the present invention is significantly smaller in color change than the general RMP paint.

본 발명을 일 실시예에 따라 이하에 구체적으로 설명한다.The invention is described in detail below in accordance with one embodiment.

도료의 가공성을 향상시키기 위하여 전술한 내용의 도료를 개발, 적용하였으나 강판의 전면 엠보싱으로 형성된 표면의 주름으로 인한 오염발생의 문제가 대두되었다. 발명의 목적을 건축외장재로 삼아 진행하였기 때문에 오염성 문제는 반드시 해결하여야 할 문제였다. 이를 위해 본 발명은 다음과 같이 오염발생의 문제를 해결하였다. 종래도료는 도막자체의 오염을 막기위하여 빗물등의 수분에 반응하지 않는 친유성(親油性)첨가제를 사용하여 도막자체는 오염되지 않았으나 공기중의 부유하던 오염물질이 도막의 표면에 고착된 후 빗물등의 수분이 접촉하게 되면 도막의 표면이 수분과 반응하지 않아 고착된 오염원의 제거효과가 없었으나, 발명도료는 빗물등의 수분에 일정부분 반응할 수 있도록 친수성(親水性) 첨가제를 도막의 표면에 부유시킴으로 오염물질이 도막표면에 고착된 후 수분과 접촉하였을때 친수(親水)물질이 빗물을 빨아들여 건조도막의 수접촉각을 낮추어 고착된 대기중의 오염인자인 먼지, SO2가스, 산성비등의 오염물질이 도막의 표면에 전체적으로 고르게 퍼져서 흘러내리게 하여 오염원을 세척하는 기능을 부여하도록 설계하였다. 이를 위해 도료의 첨가제로 친수성 물질인 메틸실리게이트(METHYL SILICATE(CH3O)4Si)를 3~7% 함유하게 하여 산성비에 노출후 친수성 첨가제가 활성화되어 표면의 세정기능으로 작용토록 하였다. 메틸실리게이트(METHYL SILICATE(CH3O)4Si)를 3%미만 함유할 때에는 친수성 첨가제의 활성화가 부족하고 7%초과로 함유하게 하였을시에는 아래의 표 1의 시험결과와 같이 내약품성과 내용제성이 현저하게 저하되는 것으로 나타나 함유량을 7%가 넘지 않도록 설계하였다.In order to improve the processability of the paint, the paint of the above-described contents was developed and applied. Since the object of the invention was made as a building exterior material, the problem of pollution was a problem to be solved. To this end, the present invention solved the problem of pollution as follows. Conventional paints use lipophilic additives that do not react to moisture such as rainwater to prevent contamination of the coating film itself. However, the coating film itself is not contaminated, but airborne contaminants adhere to the surface of the coating film. When moisture, such as water, comes into contact with the surface of the coating, it does not react with the water, so there is no effect of removing the contaminated source. However, the invention paint has a hydrophilic additive so that it reacts with moisture such as rain water. floating sikimeuro after the contaminants have adhered to the film surface to when in contact with water in the hydrophilic (親水) material contaminant of the atmosphere adhere sucked rainwater lower the water contact angle of the dry film dust, SO 2 gas, acid rain, etc. The contaminant was designed to give the function of washing the contaminant by spreading it down evenly over the surface of the coating film. To this end, 3 to 7% of the hydrophilic material (METHYL SILICATE (CH 3 O) 4 Si) as a paint additive was added to the hydrophilic additive after exposure to acid rain to act as a cleaning function of the surface. When less than 3% of the methyl silicate (METHYL SILICATE (CH 3 O) 4 Si) is insufficient to activate the hydrophilic additives and more than 7% when contained in the chemical resistance and contents as shown in the test results of Table 1 below Determination was shown to be markedly reduced, and the content was designed not to exceed 7%.

표 1Table 1

두번째로 본 발명자들이 연구한 것은 강판의 형상제어의 방법이다. 전면 엠보싱 처리를 하므로 평판과는 달리 강판의 형상에 많은 문제점을 나타내게 되었는데 그 첫째가 빌드업(BUILD UP)의 발생이다. 빌드업(BUILD UP)이란 강판의 폭방향의 두께편차에 의해 코일로 권취시에 특정부분이 솟아오르는 현상으로 빌드업(BUILD UP)이 발생한 코일은 사용시에 코일링을 풀면 파형(WAVE형상)의 형상불량으로 재현되게 된다. 두번째로 엠보싱롤의 마모등에 의해 성형시의 불량이 발생하여 강판의 가장자리(EDGE), 중앙부(CENTER)부분에 파형(WAVE형상)이 생기는 문제가 발생하였다. 빌드업(BUILD UP)발생현상의 분석결과, 최초롤 설계시의 문양별깊이설계의 착오로 가로문양과 세로문양의 편차가 60~90㎛ 정도 발생하여 성형강판의 두께편차는 최대 100㎛까지 발생하여 수요가 권취해제(UNCOILING)시 빌드업(BUILD UP)이 파(WAVE) 또는 주름으로 발생하였다. 또한 형상불량을 발생시킬 수 있는 잠재적인 설비불안 요소로서 권취장력 불안정의 문제점이 발견되었다. 이는 엠보싱롤의 아이들(IDLE)구동으로 인해 엠보싱롤에서 권취롤에 이르는 구간의 장력조절이 어렵게 되는데 권취장력의 조절은 언코일러(UNCOILER)의 에어브레이크(AIR BRAKE)를 이용한 수동조작으로 소재두께 및 권취 DIA에 따른 조건이 맞지 않을 경우 스트립(STRIP)의 떨림, 슬립(SLIP)현상 발생등의 또다른 형상불량을 야기할 수 있는 잠재원인으로 파악되었다.Secondly, the inventors have studied the method of shape control of steel sheet. Unlike the flat plate, the embossing of the entire surface causes many problems in the shape of the steel sheet. The first is the occurrence of BUILD UP. BUILD UP is a phenomenon in which a specific part rises when winding up due to the thickness variation in the width direction of the steel plate. It is reproduced as a shape defect. Secondly, a defect occurred during molding due to abrasion of the embossing roll, and a problem arises in that a wave shape (WAVE shape) occurs at the edge portion of the steel sheet and the center portion. As a result of analysis of BUILD UP occurrence, the variation of horizontal pattern and vertical pattern occurred about 60 ~ 90㎛ due to the error of design of depth by pattern at the time of the first roll design, and the thickness deviation of molded steel sheet was up to 100㎛. As a result, when the demand was uncoiled, a build up occurred as a wave or a wrinkle. In addition, a problem of winding tension instability has been found as a potential equipment instability that can cause shape defects. This makes it difficult to control the tension from the embossing roll to the take-up roll due to the idle driving of the embossing roll. The adjustment of the take-up tension is a manual operation using the air brake of the uncoiler. If the conditions under the winding DIA are not met, it is considered to be a potential cause of other shape defects such as tremor of the strip and slipping.

실시예Example

(실시예1)Example 1

전술한 문제점을 해결하기 위하여 다음과 같이 시험하였다. 먼저 폭방향으로의 균일한 두께 프로필을 확보하기 위한 롤설계에 주력하였다. 엠보싱 상(上)롤을 1260mm를 기준으로 롤크라운(ROLL CROWN)량을 20/100∼23/100으로 설정함(이 범위를 벗어날 경우 강판 폭(幅)방향으로 균일한 두께를 얻을 수 없었음)으로 성형시의 압하력이 폭별로 동일하게 작용할 수 있도록 하였고 롤패턴의 선정에도 가로문양과 세로문양의 두께편차가 없도록 재선정하여 성형깊이차이에서 오는 빌드업(BUILD-UP)발생을 억제토록 하였다. 잠재적인 설비의 불안요소인 장력조절문제를 개선하기 위하여는 아이들형(IDLE TYPE)이었던 기존의 엠보싱롤을 자동텐션구동(AUTO-TENSION DRIVE)화 함으로 장력불안에 의한 킹크(KINK), 판떨림, 슬립(SLIP)등의 잠재적 불안요소를 사전에 차단하였다. 이를 통해 중앙부(CENTER)∼가장자리부(EDGE)까지의 성형깊이차이가 100㎛ 이던것을 10㎛이내로 관리가 가능하여 짐으로 형상개선에 크게 기여하였다.In order to solve the above problems, the following tests were made. First, it focused on the roll design to secure a uniform thickness profile in the width direction. Set the roll crown amount to 20/100 to 23/100 based on 1260mm of embossed upper roll. (If it is out of this range, uniform thickness could not be obtained in the steel plate width direction.) ), So that the rolling force during molding can act the same for each width and reselected so that there is no thickness variation between horizontal and vertical patterns even when selecting the roll pattern so as to suppress the build-up (BUILD-UP) from the difference in molding depth. . In order to improve the tension control problem, which is a potential anxiety factor of the facility, the automatic emulation roll, which was an idle type, has been auto-tension driven to make the kinks, plate vibrations, Potential anxiety factors such as slip (SLIP) were blocked in advance. As a result, it was possible to manage the molding depth difference from the center part to the edge part within 100 μm, which greatly contributed to the shape improvement.

형상개선효과는 개선전후 대비하여 중앙부의 파형(WAVE)는 2%에서 0%로 전혀 발생치 않았고, 가장자리 파형은 급준도 기준 1.3%발생에서 0.3%로 평판대비로도 양호한 실적을 나타내었다The shape-improving effect did not occur at all from 2% to 0% in the center wave, while the edge waveform showed 0.3% in the steepness of 1.3%.

추가적으로 강판의 성형부 형상정밀도를 향상시키기 위하여 백래쉬(BACK LASH) 발생방지용 이중기어를 설치하였고 엠보싱 상하롤의 성형무늬를 정확히 맞추기 위한 수평-수직 미세조정용 워엄기아를 설치하여 성형무늬의 품질안정성에도 주력하였다.In addition, a double gear for preventing backlash is installed in order to improve the shape accuracy of the formed part of the steel sheet, and a worm gear for horizontal-vertical fine adjustment is installed to precisely match the molded pattern of the embossed upper and lower rolls. It was.

다음 도 3은 성형깊이차이를 안정적으로 관리하기 위한 압축하중별 엠보싱롤의 굴곡량을 나타낸 그래프로, 압축하중을 설계치 대비 60%이하로 관리하므로 엠보싱롤의 굴곡에 따른 성형골깊이차를 최소화할 수 있도록 관리범위를 설정하였다.Next, Figure 3 is a graph showing the bending amount of the embossing roll for each compression load for stable management of the molding depth difference, because the compression load is managed to 60% or less than the design value to minimize the molding bone depth difference due to the bending of the embossing roll The management scope was set up so that

다음으로 롤크라운(ROLL CROWN) 및 굴곡(BENDING)에 의한 U평불 발생의 문제점이 새로이 대두되었는데 이는 롤(ROLL)설계시에 반영하지 못했던 부분으로 상(上)롤의 크라운(CROWN)과 직하중에 의해 발생하는 문제점으로 조사되었다. 엠보싱 상롤에 의한 U평불 발생을 없애기 위하여 엠보싱롤 전단에 안내구(GUIDE)를 삽입하여 스트립(STRIP)과 하(下)롤과의 접촉면적을 증대시켜 상(上)롤과의 접촉면적을 감소시킴으로 상(上)롤 크라운(CROWN)에 의한 U평불 발생문제를 해결하였다.Next, the problem of U-flag generation caused by ROLL CROWN and BENDING has emerged, which was not reflected in the roll design. It was investigated by the problem caused by. In order to eliminate U-flat caused by the upper embossing roll, a guide is inserted in front of the embossing roll to increase the contact area between the strip and the lower roll, thereby reducing the contact area between the upper roll and the upper roll. It solved the problem of U flat flame caused by the upper roll crown (CROWN).

마지막으로, 인쇄용 잉크의 개발로 본 발명의 인쇄용 도료는 오목한 부분에잉크를 부어 피인쇄체에 옮겨 화상을 형성하는 그라비어 잉크를 사용한다. 강판의 인쇄용 도료는 오목판에 잉크가 들어가서 피인쇄체에 인쇄까지의 시간이 순간적으로 이루어지기 때문에 잔 시피유(Zahn CUP) #4로 측정시 20~25초 가량의 저점도 잉크를 사용하도록 하였다. 그리고 강판의 특성상 소지층 침투건조가 아닌 증발건조로 인쇄층이 순간적으로 건조되어야 하기 때문에 속건성 잉크를 사용하여 10초 이내에 지촉 건조될 수 있도록 하였다. 또한 하도,중도 및 상도 크리어 도장의 물성을 해치지 않도록 도료의 수지와 같은 폴리에스터, 아크릴계 수지를 바탕으로 착색력과 투명성이 우수한 내열안료를 사용토록 설계하였다.Finally, with the development of printing inks, the printing paints of the present invention use gravure inks that pour ink into recessed portions and transfer them to the printed object to form an image. The printing paint for the steel plate was made to use a low viscosity ink of about 20 to 25 seconds when measured by Zahn CUP # 4 because ink enters the concave plate and the time to print on the printed object is instantaneously. And because of the nature of the steel sheet, the printing layer should be dried instantaneously by evaporation drying rather than the base layer penetration drying so that it can be dried in 10 seconds using a quick-drying ink. In addition, it was designed to use heat-resistant pigments with excellent coloring power and transparency based on polyester and acrylic resins such as resins of paints so as not to impair the properties of undercoat, midway and top coat.

본 발명에서는 PCM용 도료를 사용하여 도장한 강판을 소재로 사용하여 인쇄처리를 하여 주고 인쇄층을 보호하기 위하여 크리어도장 처리를 하였다. 또한 인쇄무늬의 입체감을 극대화 시키기 위하여 후공정으로 강판에 전면 엠보싱 처리를 하여 제조한 것이 특징이다. 본 발명상의 작업공정을 이하에 설명한다.In the present invention, a steel plate coated with a PCM paint is used as a material to perform a printing process and to perform a clear coating process to protect the printed layer. In addition, to maximize the three-dimensional appearance of the printed pattern is characterized by the manufacturing process by embossing the entire surface of the steel plate in a post-process. The working process of this invention is demonstrated below.

우선 소지강판의 표면위에 부식방지 및 도료의 부착성 향상을 위한 전처리로써 롤 코팅방법을 사용하여 6가 크롬을 도장한다. 다음으로 롤 코팅으로 하도도료를 5~10미크론, 중도도료를 10~20미크론이 되도록 차례로 도장한다First, hexavalent chromium is coated by using a roll coating method as a pretreatment to prevent corrosion and improve adhesion of paint on the surface of the base steel sheet. Next, roll coating is used to coat the bottom coat 5-10 microns, and the middle coat 10-10 microns.

본 발명은 전술한 바와 같이 강판표면에 부식방지 및 도료부착성 향상을 위한 전처리로서 롤 코팅방법을 이용하여 크롬도장을 하고 다음, 롤코팅으로 하도도료를 5∼10㎛, 중도도료를 10∼20㎛되도록 차례로 도장하며, 상술한 인쇄용 도료를 건조도막이 1∼3㎛되도록 롤코팅으로 인쇄시킨다.The present invention, as described above, to the chromium coating using a roll coating method as a pretreatment for preventing corrosion and improving paint adhesion to the surface of the steel sheet, and then roll coating 5-10㎛, 10-20 coating medium coating Painting is carried out in order to have a thickness, and the above-described printing paint is printed by roll coating so that the dry coating film is 1 to 3 탆.

인쇄도장 후에 강판의 최상층에 인쇄층을 보호하기 위하여 투명한 크리어 도료를 롤코팅하여 주어 도장강판을 완성시킨 후, 인쇄무늬의 입체감을 부여하기 위하여 엠보싱롤을 사용하여 강판에 전면 150∼220미크론의 깊이로 엠보싱 처리를 하여 줌으로 본 발명의 제품이 완성된다. 이 완성된 제품의 단면은 도 1의 설명도로 나타내었다. 여기에서 소지강판 위에 강판내식성 강화를 위해 크롬처리층을 형성케하고, 그 위에 도막밀착성을 부여하기 위해 하도도장층, 그 위에 인쇄전의 그라운드도장, 전체적인 색감부여를 위해 중도도장층, 그 위에 다양한 무늬로 미려한 외관의 인쇄층, 그리고 인쇄층 위에 인쇄층 보호 및 내식성, 가공성 강화를 위해 상도도장층 그리고 이 상도도장층 위로 엠보싱 처리된 엠보스 형성 구조로 된 본 발명상의 강판을 도 1에 도시하였다.After printing coating, roll clear coating is applied to the top layer of steel sheet to protect the printing layer. Finishing the coated steel sheet, and then use embossing roll to give the printed pattern three-dimensional depth of 150 ~ 220 micron. The embossing process is performed to complete the product of the present invention. The cross section of this finished product is shown in the explanatory diagram of FIG. Here, a chromium treatment layer is formed on the base steel sheet to enhance the corrosion resistance of the steel plate, and a base coating layer, a ground coating before printing thereon, and a middle coating layer for imparting overall color to give the overall film adhesion thereon, various patterns thereon. Fig. 1 shows a steel sheet of the present invention having a printed layer having an elegant appearance, and an embossed structure embossed on the top coat layer and the top coat layer for protecting the print layer, enhancing corrosion resistance, and processability on the printed layer.

여기에서, 인쇄용 도료를 건조도막이 1∼3미크론 범위가 되도록 롤코팅하여 인쇄시키는 것은 인쇄의 투명도와 선명도 때문인데 이 범위를 넘어서면 인쇄가 선명하게 되지 못하고 자칫 인쇄상태가 이지러지게 될 염려가 크다. 또한 강판 전면에 걸쳐 180∼220미크론(㎛) 깊이로 엠보싱처리하는 것도 본 발명상의 롤 코팅, 엠보스 입체감 부여에 가장 적합한 범위로서 이 범위를 넘어서면 선명도, 작업도, 강판표면 상태에 큰 영향이 미쳐지기 때문에 이 범위를 택한 것이다.Here, the printing of the paint for printing by coating the dry coating so that the dry coating is in the range of 1 to 3 microns is due to the transparency and clarity of the printing, but beyond this range, the printing is not clear and there is a high possibility that the printing state will be disturbed. In addition, embossing to a depth of 180 to 220 microns (μm) over the entire surface of the steel sheet is also the most suitable range for providing roll coating and embossing three-dimensional effect of the present invention. I chose this range because I'm going crazy.

본 발명에 의하여 강판에 인쇄처리를 하여 주므로써 강판이 주는 차가운 느낌을 없애줌은 물론 종래에 이루지 못했던 인쇄무늬의 엠보싱처리가 가능하게 되어 다양하고 입체감 있는 무늬를 표현 하는 등 화려한 표면을 제공할 수 있게 되므로써 건축용 내,외장재 등에 포괄적으로 적용 가능하게 된 도장용융아연 또는 알미늄도장강판이 제공될 수 있게 되었다.According to the present invention, by giving a printing treatment to the steel sheet to eliminate the cold feeling given by the steel sheet, it is possible to emboss the printed pattern that has not been achieved in the past to provide a colorful surface such as expressing a variety of three-dimensional pattern As a result, it is possible to provide molten zinc or aluminum-coated steel sheets which are comprehensively applicable to building interior and exterior materials.

Claims (4)

강판표면을 전처리로서 통상의 크롬도장처리를 하고 그 상부에 PCM(Pre-Coating Metal)용 도료를 사용하여 하도도장과 중도도장을 롤 도장방식으로 도장하여 인쇄용 도료를 건조도막이 1∼3미크론 되도록 롤 코팅으로 인쇄처리 하고, 인쇄층을 보호하기 위하여 투명 크리어도료를 롤도장한 후, 다양한 패턴의 무늬가 새겨진 금속롤로 강판을 엠보싱롤로 강판에 180∼220미크론의 깊이로 엠보싱 압하처리하여서 되는 것을 특징으로 하는 엠보싱 인쇄도장강판의 제조방법.As a pretreatment, the surface of the steel sheet is coated with ordinary chromium coating, and the upper and middle coatings are coated by the roll coating method using PCM (Pre-Coating Metal) paint on the upper part, and the printing paint is rolled so that the dry coating film is 1 to 3 microns. It is printed by coating, and then roll-coated transparent clear paint to protect the printed layer, and then embossing and reducing the steel sheet with a embossing roll to a steel plate with a depth of 180 to 220 microns with a metal roll engraved with various patterns. Method of manufacturing an embossed printed steel sheet. 제 1항에 있어서, 상기 도장용융도금강판은 아연도금강판 또는 알루미늄 도금강판으로 되는 것을 특징으로 하는 엠보싱 인쇄도장강판의 제조방법.The method of claim 1, wherein the hot dip galvanized steel sheet is a galvanized steel sheet or an aluminum plated steel sheet. 제 1항에 있어서, 상기 롤 코팅용 도료로서 폴리에스테르(polyester)수지에 멜라민수지와 에폭시 수지를 배합하고 수지의 배열을 선형 글리콜, 지방족 모노머와 환상 및 지방족 모노머(cyclic and aliphatic monomer)로 하며, 여기에 친수성 첨가제로서 메틸실리케이트(CH3O)4Si를 3∼7중량% 첨가하도록 한 것을 특징으로 하는 엠보싱 인쇄도장강판의 제조방법.According to claim 1, Melamine resin and an epoxy resin is blended with a polyester resin as the coating material for the roll coating and the arrangement of the resin is a linear glycol, aliphatic monomer and cyclic and aliphatic monomer (cyclic and aliphatic monomer), 3 to 7 wt% of methyl silicate (CH 3 O) 4 Si is added as a hydrophilic additive. 상기 제 1항에 기재된 강판을 소지강판 위에 강판 내식성 이 완성된 제품의단면은 도 1의 설명도로 나타내었다. 여기에서 소지강판 위에 강판내식성 강화를 위해 크롬처리층을 형성케하고, 그 위에 도막밀착성을 부여하기 위해 하도도장층, 그 위에 인쇄전의 그라운드도장, 전체적인 색감부여를 위해 중도도장층, 그 위에 다양한 무늬로 미려한 외관의 인쇄층, 그리고 인쇄층위에 인쇄층 보호 및 내식성, 가공성 강화를 위해 상도도장층 그리고 이 상도도장층 위로 엠보싱 처리된 엠보스 형성 구조로 제조되도록 한 것을 특징으로 하는 엠보싱 인쇄도장강판.The cross-section of the product of the steel sheet corrosion resistance is completed on the steel sheet of claim 1 is shown in the explanatory diagram of FIG. Here, a chromium treatment layer is formed on the base steel sheet to enhance the corrosion resistance of the steel plate, and a base coating layer, a ground coating before printing thereon, and a middle coating layer for imparting overall color to give the overall film adhesion thereon, various patterns thereon. Embossed printed steel sheet, characterized in that the printed layer, and the embossed structure embossed on the top layer and the top layer in order to enhance the print layer protection, corrosion resistance, processability on the printed layer.
KR1020030036275A 2003-06-05 2003-06-05 Printing and coating processed embossing steel sheet and it's manufacture method KR20040107550A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100698363B1 (en) * 2005-01-05 2007-03-23 유니온스틸 주식회사 Single side embossed color steel sheet with printing and manufacturing method thereof
KR101387638B1 (en) * 2012-10-22 2014-04-23 포스코강판 주식회사 Method for manufacturing colored steel sheet plate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100698363B1 (en) * 2005-01-05 2007-03-23 유니온스틸 주식회사 Single side embossed color steel sheet with printing and manufacturing method thereof
US7244511B2 (en) 2005-01-05 2007-07-17 Union Steel Manufacturing Co., Ltd. Color steel sheet with embossed patterns on one side thereof
KR101387638B1 (en) * 2012-10-22 2014-04-23 포스코강판 주식회사 Method for manufacturing colored steel sheet plate

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