Principles for drawing pressure vessel drawings

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“דThe surface needs to be processed after welding with the part number ×”, etc. (2) Detachable or non-detachable components that have an independent structure and for which a component diagram is necessary to clearly illustrate their assembly requirements, mechanical properties, and uses should be represented by a component diagram. Such as stirring drive devices, split bearings, couplings, etc. (3) Detailed drawings of the components should be provided for complex equipment housings. (4) Draw component drawings for cast and forged parts. 3. Principles for drawing enlarged views: Enlarged views are required for the butt welds between the cylinder and the head, the welds between the reinforcement rings and the cylinder or head, the reinforcement welds on thick-walled pipes, the welds between the cylinder and the tube sheet, the welds between the cylinder and the skirt, and the connection welds.