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    • 1. 发明公开
    • 콘크리트 고압 압송관용 연결 장치 및 그 제조 방법
    • 用于输送高压混凝土的功能的钢管的连接装置及其制造方法
    • KR1020120068161A
    • 2012-06-27
    • KR1020100129642
    • 2010-12-17
    • 현대하이스코 주식회사현대엠코 주식회사
    • 진경수박성필김윤규공민호정기택
    • B21K1/16C21D9/00F16L21/08
    • B21K1/16B21J1/06B21J5/027C21D9/0068
    • PURPOSE: A connecting device for a high-pressure concrete delivery pipe and a manufacturing method thereof are provided to stably deliver concrete used for construction of high-rise buildings by increasing the cross section of a flange by 25% of the inner flow sectional area of a pressure delivery pipe. CONSTITUTION: A method for manufacturing a connecting device for a high-pressure concrete delivery pipe is as follows. A raw material is cut to prepare flange and clamp materials. The flange and clamp materials are heated to a recrystallization temperature. The heated flange and clamp materials are hot-forged first to mold flange products(110,120) and a clamp product(130). The flange and clamp products are hot-forged secondly and trimmed. The trimmed flange and clamp products are thermally treated to remove internal stress.
    • 目的:提供一种高压混凝土输送管的连接装置及其制造方法,用于通过将法兰的横截面增加25%的内部流动截面积来稳定地输送用于建造高层建筑物的混凝土 压力输送管。 构成:用于制造用于高压混凝土输送管的连接装置的方法如下。 切割原料以制备法兰和夹具材料。 将法兰和夹紧材料加热至再结晶温度。 加热的法兰和夹紧材料首先被热锻,以模制法兰产品(110,120)和夹具产品(130)。 法兰和夹具产品二次热锻并修剪。 修剪的法兰和夹具产品进行热处理以消除内部应力。
    • 3. 发明公开
    • 850㎫ 인장강도, 270Hv경도, 400bar 내압 성능으로 개선된 콘크리트 고압 압송관 제조 방법
    • 具有输送400BAR高压混凝土的功能的钢管及其制造方法
    • KR1020120085093A
    • 2012-07-31
    • KR1020110006508
    • 2011-01-21
    • 현대하이스코 주식회사현대엠코 주식회사
    • 박성필김윤규공민호
    • B21C37/08B21D5/12C21D9/08C22C38/04
    • PURPOSE: A concrete conveying pipe with high pressure and a manufacturing method thereof, which have 400bar pressure-resistant, 270hv hardness and 850mpa tensile strength are provided to secure a target pressure-resistant at the same time as a composition ratio of the thermal treatment is offered. CONSTITUTION: A method for manufacturing a concrete conveying pipe with high pressure is as follows. A skelp is formed by slitting heat treatment steel into an external diameter of the conveying pipe(S100). An edge is grinded by rolling down the skelp(S200). The skelp is processed into a pipe shape by forming the skelp with a multi level roll after the leveling and edge milling(S300). The conveying pipe is shaped by welding both edges of the skelp. The shaped conveying pipe is heat-treated by tempered martensite for conveying concrete at the pressure of 600bar.
    • 目的:提供具有400bar耐压,270hv硬度和850mpa拉伸强度的高压混凝土输送管及其制造方法,以确保目标耐压,同时热处理的组成比为 提供。 构成:用于制造高压混凝土输送管的方法如下。 通过将热处理钢切成输送管的外径形成骨架(S100)。 通过滚动Skelp(S200)来研磨边缘。 通过在流平和边缘铣削之后用多级辊形成skelp,将边缘加工成管状(S300)。 输送管通过焊接边缘的两边成形。 成型输送管用回火马氏体进行热处理,以600bar的压力输送混凝土。
    • 6. 发明公开
    • 콘크리트 고압 압송관 및 그 제조 방법
    • 具有输送高压混凝土功能的钢管及其制造方法
    • KR1020120057798A
    • 2012-06-07
    • KR1020100119301
    • 2010-11-29
    • 현대하이스코 주식회사현대엠코 주식회사
    • 박성필김윤규공민호정기택
    • B21D5/12B21C37/08C21D9/08C22C38/04
    • PURPOSE: A high-pressure transfer pipe for concrete and a manufacturing method thereof are provided to obtain high tensile strength and hardness through effective quenching and tempering using thermally treated medium-carbon steel. CONSTITUTION: A method for manufacturing a high-pressure transfer pipe for concrete is as follows. A thermally treated medium-carbon steel material is slit to the outer diameter of a pressure transfer pipe to form a roll-type skelp. The roll-type skelp is unrolled while controlling flatness and grinding edges. The skelp is formed into a pipe shape using a multi-stage roll. Both edges of the skelp are welded and a pressure transfer pipe is obtained. The pressure transfer pipe is thermally treated to have a tempered martensidte structure suitable for high-pressure transfer of concrete at 300bar.
    • 目的:提供一种用于混凝土的高压输送管及其制造方法,通过使用热处理的中碳钢进行有效的淬火和回火来获得高拉伸强度和硬度。 构成:混凝土用高压输送管的制造方法如下。 将热处理的中碳钢材料切割成压力传送管的外径,以形成卷型骨架。 轧辊型的边缘在平整度和研磨边缘的同时展开。 使用多级辊将骨架形成为管状。 焊缝的两边缘被焊接,并且获得压力传递管。 压力传递管被热处理以具有适用于300bar混凝土高压转移的回火马氏体结构。
    • 8. 发明公开
    • 알루미늄 합금관을 이용한 트레일링암 및 그 제조방법
    • 铝合金牵引臂及其制造方法
    • KR1020130113815A
    • 2013-10-16
    • KR1020120036317
    • 2012-04-06
    • 현대하이스코 주식회사
    • 박성필김윤규
    • B21D26/033B21D7/00C22C21/06B21D26/035
    • PURPOSE: A trailing arm using an aluminum alloy pipe and a manufacturing method thereof are provided to lighten the weight of components and to obtain the durability and the reliability of the components as no welded portion exists. CONSTITUTION: A method for manufacturing a trailing arm using an aluminum alloy pipe includes the following steps of: preparing the aluminum alloy pipe; bending the alloy pipe into a shape corresponding to that of the trailing arm; and expanding and forming a primary molded article by applying water pressure inside the primary molded article after seating the primary molded article inside a die including a molding groove corresponding to the shape of the trailing ram. [Reference numerals] (S-52) Step of preparing an alloy pipe; (S-54) Step of hydroforming; (S-56) Step of hydroforming; (S-58) Step of hole processing
    • 目的:提供一种使用铝合金管的拖臂及其制造方法,以减轻部件的重量,并获得不存在焊接部分的部件的耐久性和可靠性。 构成:使用铝合金管制造拖臂的方法包括以下步骤:制备铝合金管; 将合金管弯曲成与拖臂相对应的形状; 以及在将一次成形品置于包括与后拉杆的形状相对应的模制槽的模具内的模具中之后,通过在一次模塑制品内施加水压来膨胀和形成一次模塑制品。 (参考号)(S-52)合金管的制备工序; (S-54)液压成型步骤 (S-56)液压成型步骤 (S-58)孔加工步骤