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                當前位置:鋼纖維制造方法/鋼纖維
                鋼纖維制造方法/鋼纖維
                [來源:http://www.www.tjejtrampet.com] [作者:567zx] [日期:18-11-07] [瀏覽次數:]

                鋼纖維制造方法/鋼纖維
                Steel fiber manufacturing method / steel fiber
                用與鋼纖維混凝土的鋼纖維主要有四種制造方法,以下是詳細資料:
                There are four main ways of making steel fibers with steel fiber reinforced concrete.
                ⒈鋼絲切斷法
                Wire cutting method
                這種加工方法比較簡單,一般利用小直徑0.4-0.8mm的冷拔鋼絲為原料,’按照規定的長度把鋼絲切成短纖維。用這種方法生產鋼纖維的抗拉強度,遠高于其它方法加工成的鋼纖維,可達1000-2000MPa.
                This processing method is relatively simple, generally using small diameter of 0.4-0.8mm cold-drawn steel wire as raw material,'according to the specified length of steel wire cut into short fibers. The tensile strength of steel fibers produced by this method is much higher than that of steel fibers processed by other methods, reaching 1000-2000 MPa.
                加工手段可以用切刀、沖床。為了提高效率,常用旋轉刀具切斷。由于冷拔鋼絲價格昂貴,這種方法生產的鋼纖維成本較高。此法生產鋼纖維的另一缺點是表面較光滑,與混凝土等基體的粘結強度較小。為了增加鋼纖維與混凝土等基體的粘結強度,常常采用改變鋼纖維的外形,即通過生產異形鋼纖維的辦法加以解決,常見的方法有三種:
                Cutting tools and punching machines can be used for processing. In order to improve efficiency, rotary tools are often used to cut off. Because of the high cost of cold drawn steel wire, the cost of steel fiber produced by this method is higher. Another disadvantage of this method is that the surface of steel fibers is smooth and the bond strength between steel fibers and concrete matrix is small. In order to increase the bond strength between steel fibers and concrete, it is often used to change the shape of steel fibers, that is, to produce special-shaped steel fibers. There are three common methods:
                ⑴壓棱法:在切斷鋼絲前,用進給鋼絲的夾送輥在鋼絲上壓出棱形凹坑。
                Pressing method: before cutting the steel wire, the pinch pits are pressed on the steel wire by the pinch roll of feeding wire.
                ⑵波形法:在切斷鋼絲前,用進給鋼絲的夾送輥將鋼絲壓成波形后再切斷。
                Waveform method: before cutting the steel wire, the steel wire is pressed into waveforms and then cut off with the pinch roll of the feeding wire.
                ⑶彎鉤法:在切斷鋼絲前,用進給鋼絲的夾送輥等距離地壓出彎鉤狀再切斷
                3. Crooked hook method: before cutting the steel wire, use the pinch roll of feeding wire to equip the hook to cut off the hook again.
                2.薄板剪切法
                2. thin plate shearing method
                薄板剪切法是吧冷軋薄鋼板切成鋼纖維的方法,剪切前用特制的小型縱剪機將薄冷軋卷板剪成帶鋼卷,帶鋼卷的寬度和鋼纖維的長度相同,然后將帶鋼卷連續不斷地送入旋轉刀具或普通沖床切斷,旋轉刀具的軸與薄板進給方向互相垂直。原材料一般采用退火的冷軋鋼板,為提高強度也可以使用未退火的冷軋鋼板。
                Shear method is to cut the cold rolled sheet into steel fibers. Before shearing, the thin cold rolled sheet is cut into strip coil with a special small longitudinal shear machine. The width of strip coil is the same as the length of steel fibers. Then the strip coil is continuously fed into a rotary tool or a common punch to cut off. The axis of the rotary tool and the feeding direction of the sheet are the same. They are perpendicular to each other. Annealed cold-rolled steel sheet is generally used as raw material, and unannealed cold-rolled steel sheet can also be used to improve strength.

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