Enamel inner container and manufacturing process thereof

The invention discloses an enamel inner container and a manufacturing process thereof, belongs to parts of fluid heaters of heat generating devices, and aims at solving the problems that in the manufacturing process of an existing enamel inner container, many welding seams are generated, and production cost is high. The enamel inner container comprises a bucket, an interlayer is arranged outside the bucket, necking openings II are formed in the two ends of the interlayer, the bucket is formed by carrying out butt welding on two half bucket bodies, one end of each half bucket body is spherical, necking openings I are formed in the other ends of the half bucket bodies, the bucket is sleeved with the interlayer, the two ends of the interlayer and the outer wall of the bucket are fixed in a welded mode, and welding seams are located on the necking openings II. Only three circular welding seams are needed in the enamel inner container manufacturing process, compared with an existing inner container production method, welding of two flimsy straight seams is omitted, welding of one circular seam is omitted, the safety coefficient of the inner container is improved, the service life of the inner container is prolonged, and consumable cost can be lowered.