沖壓彎頭加工工藝具有一定的工藝,在生產中按照一定的工藝技術進行生產沖壓彎頭只能做小口徑的,如果管子規格太大,很難買到成品沖壓彎頭,只能使用焊接彎頭。由于焊接彎頭焊縫多,所有使用性能不如沖壓彎頭,容易被腐蝕漏。
沖壓彎頭種類主要類型
1.變直徑沖壓彎頭,指管端或管上某一部分直徑減??;
2.變壁厚的沖壓彎頭,指沿管子長度方向使壁厚發生變化;
3.改變斷面的沖壓彎頭,根據要求,將圓形斷面變為方形、橢圓形、多邊形等等;
4.彎曲沖壓彎頭,我們接觸比較多的,就是將直管變為不同曲率半徑的彎管,如彎頭、彎管等等;
5.帶凸緣和圓緣的沖壓彎頭,前者指管子端部向內側或外側凸,后者指在管的圓周方向形成隆起的或凹槽的沖壓彎頭;
6.帶卷邊和封底類的沖壓彎頭,增加管端總強度向管的外側或內側卷邊或將沖壓彎頭端部封住的沖壓彎頭;
7.擴徑沖壓彎頭,按照要求將沖壓彎頭端部或某部位擴大形成各種形狀的沖壓彎頭。
僅從設計應力上講,沖壓彎頭的耐壓性能佳。但由于各方面的因素,地板采暖管的的實際壁厚通常為而在這個壁厚下各類管材均能滿足地板采暖的要求,國標沖壓彎頭管耐壓優勢體現不出來;導熱性:用于地板采暖的管材需要有好的導熱性、低溫耐熱沖擊性的耐低溫沖擊性能比較好。
耐溫耐壓、柔韌性好、耐熱,其性能高于其它塑料管材。安裝簡便導熱性好適用于地板采暖系統,可回收性。沖壓彎頭管材有其優異的抗沖擊強度,可熱熔焊接和機械連接,優于PB—PP-R的熱傳導性。長期耐壓性能,僅從設計應力上講,國標沖壓彎頭的耐壓性能佳。但由于各方面的因素,地板采暖管的的實際壁厚通常為2mm。而在這個壁厚下各類管材均能滿足地板采暖的要求,國標沖壓彎頭管耐壓優勢體現不出來;
Stamping has some elbow processing technology, according to some in production process technology for production stamping elbow can only do small-caliber, if the pipe size it very difficult to get finished on quality, can only use the weld bend head. As the welding seam bend more, all the better performance on quality, easy to be corroded drain.
The main categories of types of punching elbow
Variable diameter on quality, that pipe end or pipe diameter of a part of the decrease;
Variable wall thickness on quality, refers to the direction along the tube length to thickness changes;
Change the section of the press elbow, upon request, will be circular section into a square, oval, polygon, etc.;
Bent on quality, we have come more and more, is to become a straight pipe bends of different radius of curvature, such as elbows, bends, etc.;
With flange and the circular edge on quality, the former refers to the inner tube or outer end of scoliosis, which refers to the direction of the circumference of the pipe form a bulge or recess of the pressing elbow;
With crimping and back classes on quality, increasing the total strength of pipe end to pipe on the outside or the inside of crimping or punching elbow elbow end to seal the press;
Expanding on quality, in accordance with the request that the Department of punching elbow or a part of the expansion end of the formation of various forms of punching elbow.
Speaking only from the design stress, the pressure pressing elbow best performance. However, various factors, the actual floor heating pipe wall thickness is usually Erzai this Bihou Xia Ge Lei floor heating pipe can meet the requirements of GB stamping pressure elbow pipe not shown superiority; thermal Xing: Using in floor heating pipe need good thermal conductivity, low thermal shock resistance of the low temperature impact performance is better.
Temperature pressure, good flexibility, heat resistance, its performance than other plastic pipes. Installation is simple and good thermal conductivity suitable for floor heating system, recyclability. Press elbow pipe has its excellent impact strength, melt welding and mechanical connections can be better than the PB-PP-R thermal conductivity. Long-term pressure resistance, speaking only from the design stress, GB stamping pressure elbow best performance. However, various factors, the actual floor heating pipe wall thickness of typically 2mm. Wall thickness in the various types of pipes under the floor heating system can meet the requirements of national standard punching elbow pipe pressure advantage not shown;