Edge Welded Bellows andbHydraulically Formed Bellows

Edge welded bellows are manufactured by stamping sheets of metal into diaphragms and welded the inside and outside edges of them. Edge welded bellows are remarkable in that any metal can be manufactured into bellows if it can be welded. An especially remarkable feature is that the number of convolutions is theoretically unlimited. The bellows are manufactured to have excellent elasticity and bendability, while retaining high hermeticity in a manufacturing process that requires outstanding technology. Edge welded bellows are attracting attention as a high-performance part which supports the semiconductor, liquid crystal, nuclear power, medical device and other high-tech industries.

(mm) (mm) WB15 15 6.5 WB18 18 6.5 WB20 20 10 WB25 25 16 WB26 26 13.7 WB28.3 28.3 14.1 WB30 30 16.9 WB31.8 31.8 19 WB34 34 21 WB34.2 34.2 13.7 WB35 35 22 WB36.4 36.4 17 WB36.7 36.7 23 WB38.1 38.1 25.4 WB39.4 39.4 19 WB39.4 39.4 27 WB40 40 22 WB41.5 41.5 22 WB44 44 27.8 WB44.2 44.2 31 WB44.4 44.4 22.4 WB44.5 44.5 19 WB45 45 25 WB46 46 33 WB48 48 31.8 WB48 48 35 WB49.5 49.5 33 WB51 51 31.8 WB52 52 28.0 WB52.4 52.4 39 WB55 55 35.0 WB55 55 38 WB55.6 55.6 44.6 WB57 57 30 WB58.2 58.2 45.8 WB59 59 39 WB-60 60 40 WB61 61 35 WB61.9 61.9 49.1 WB64.5 64.5 39 WB65 65 43 (mm) (mm) WB65 65 45 WB70 70 50 WB71.5 71.5 58.7 WB75 75 60 WB80 80 58 WB85 85 63 WB90 90 58 WB90 90 65 WB95 95 73 WB-100 100 65 WB105 105 75 WB105 105 80 WB108 108 80 WB115 115 85 WB-119 119 89 WB125 125 95 WB125 125 102 WB130 130 90 WB130 130 110 WB-140 140 100 WB140 140 110 WB140 140 120 WB145 145 124.6 WB145 145 105 WB145 145 110 WB147 147 130 WB-150 150 110 WB-150 150 120 WB160 160 120 WB160 160 130 WB170 170 130 WB180 180 140 WB-185 185 150 WB190 190 150 WB200 200 167 WB218 218 190 WB235 235 200 WB254 254 224 WB270 270 207 WB-285 285 252 WB-290 290 265 Edge welding bellows parameter: Inner vacuum Vacuum Outer vacuum Outer vacuum, atmospheric pressure Temperature Normal temperature -250/450℃(316L), -250/800℃(AM350) The highest vacuum leak rate 1*10-10Pa·L/S Material Vacuum SUS 316L AM350...... Free length Optional EWBended length—compress ratio —elongation 50%-85% 20%-40% Service life 100-1,000-3,000 thousand times (according to the temperature and pressure) Simplex wave rigidity 0.5N/mm-20N/mm Corrugated pipe parameter: Material for the above: · 300 series stainless steel ·AM350 stainless steel ·Hastelloy alloy C ·Haynes alloy 242 · Inconel 625 and 718 alloy · titanium Molds and Edge welding bellows sizes can be designed and developed according to users' requirements.