公开(公告)号：US20130269308A1

公开(公告)日：2013-10-17

申请号：US13740526

申请日：2013-01-14

Applicant: KUROSAWA CONSTRUCTION CO., LTD.

Inventor： Ryohei KUROSAWA ,  Kei HIRAI

IPC: D07B1/02

CPC classification number: D07B1/02 ,  D07B1/0693 ,  D07B7/185 ,  D07B2201/2006 ,  D07B2201/2011 ,  D07B2201/2012 ,  D07B2201/2013 ,  D07B2201/2044 ,  D07B2201/2046 ,  D07B2201/2051 ,  D07B2201/2059 ,  D07B2201/2065 ,  D07B2205/306 ,  D07B2205/3064 ,  D07B2205/3067 ,  D07B2205/3071 ,  D07B2207/404 ,  D07B2207/4059 ,  D07B2301/10 ,  D07B2301/45 ,  D07B2401/2025 ,  D07B2501/2023 ,  D07B2801/12 ,  D07B2801/18 ,  D07B2801/60

Abstract: In order to provide a double rustproof PC strand with superior durability and semi-permanent rustproof performance, a core wire and surrounding wires are formed of wires subjected to a wire drawing treatment and a plating treatment and formed with a plated layer, and a rustproof treatment is applied by forming a synthetic resin coat on an outer peripheral surface thereof. In order to uniformize and regulate the twisting pitch, the core wire and the surrounding wires are adjusted under the conditions of (A) Diameter of CORE: 4.42±0.05 mm, Diameter of Surrounding wire: 4.25±0.05 mm, (B) Diameter of CORE: 5.22±0.05 mm, Diameter of Surrounding wire: 5.06±0.05 mm, or (C) Diameter of CORE: 5.40±0.05 mm, Diameter of Surrounding wire: 5.25±0.05 mm, and then twisted, and the tensile strength is 1850 N/mm2 or higher.

Abstract translation: 为了提供具有优异的耐久性和半永久性防锈性能的双重防锈PC绞线，芯线和周围的线由经过拉丝处理和电镀处理的电线形成，并且形成有镀层，并且防锈处理 通过在其外周面上形成合成树脂涂层来施加。 为了使捻距均匀化和调节，在（A）直径CORE为4.42±0.05mm，周围线直径为4.25±0.05mm的条件下，对芯线和周围线进行调整，（B）直径 核心：5.22±0.05mm，周围线直径：5.06±0.05mm，或（C）直径CORE：5.40±0.05mm，周围线直径：5.25±0.05mm，扭转，拉伸强度为1850 N / mm2以上。

公开(公告)号：US20140034208A1

公开(公告)日：2014-02-06

申请号：US13913583

申请日：2013-06-10

Applicant: Kurosawa Construction Co., Ltd.

Inventor： Ryohei KUROSAWA ,  Kei HIRAI ,  Naoki MATSUBARA

IPC: C09D5/08

CPC classification number: C09D5/08 ,  B05D1/06 ,  B05D7/20 ,  D07B7/145 ,  D07B7/185 ,  D07B2201/2012 ,  D07B2201/2023 ,  D07B2201/2059 ,  D07B2201/2065 ,  D07B2205/206 ,  D07B2207/4059 ,  D07B2207/4068 ,  D07B2401/2025 ,  D07B2501/2023 ,  E04C5/015 ,  E04C5/08 ,  Y10T29/49194 ,  Y10T29/49224 ,  D07B2801/12 ,  D07B2801/18 ,  D07B2801/60

Abstract: In a method for forming a rustproof film on a PC strand, the thickness of the resin film is set to 200±80 μm, the pre-heating is performed within a temperature range from 60 to 150° C. to prevent an occurrence of a cob-webbing phenomenon as a result of melting of the synthetic resin powder coating material and the post-heating is performed within a range from 150 to 250° C. in order to uniformize the thickness of the coats adhered to the outer peripheral surfaces of the core wire and the surrounding wires, and the temperature of the pre-heating is set to be lower than the temperature of the post-heating, and the synthetic resin powder coating material including particles having diameters in a range from 0.1 to 250 μm is used, and the line speed in the series of steps is set to 5 to 10 m/min.

Abstract translation: 在PC绞合线上形成防锈膜的方法中，将树脂膜的厚度设定为200±80μm，预热在60〜150℃的温度范围内进行，以防止发生 由于合成树脂粉末涂料的熔化和后加热，在150-250℃的范围内进行丝网织带现象，以使粘附在外层表面上的涂层的厚度均匀化 芯线和周围线，并且将预热的温度设定为低于后加热的温度，并且使用包括直径在0.1至250μm的粒子的合成树脂粉末涂料 ，一系列步骤中的线速度设定为5〜10m / min。