HIGH-PRESSURE BOTTLE AND METHOD OF ITS MANUFACTURE Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: bottle consists of inner envelope with circular weld seam which has bottoms and pipe union provided in one of them; bottle is also provided with outer reinforcing braiding of varying thickness which is achieves due to making the inner envelope of two half-bottles with equal geometrical parameters made in form of sleeves with bottles; cylindrical portion of sleeves is thin-walled relative to bottoms being thinned towards axis of bottle; welded edges of sleeves are thickened inside bottle and their outer diameter is less than outer diameter of thin-walled cylindrical portion. Such construction of bottle is obtained through moulding the half-bottles with bottoms of one standard size by plastic deformation, for example, by die forging or sheet forming followed by forming the thin-walled cylindrical portion with welded edges thickened inside the bottle by welding, heat treatment and fitting the outer reinforcing braiding. EFFECT: enhanced reliability. 3 cl, 9 dwg