Chapter 6 Structure Design and Manufacturing of Metal Buckets
The first section of the structure of the steel barrel
The metal barrel generally refers to a container with a larger capacity (greater than 20L) made of a metal plate of 0.5 mm or more. According to the different barrels, it can be divided into steel barrels, aluminum barrels, stainless steel barrels and so on.
First, full open steel drums.
The opening diameter of the fully open drum is equal to the inside diameter of the barrel.
Second, closed steel drums.
The top of the barrel and the bottom of the barrel are combined into one body by crimping the seal and the barrel body, and it is not removable.
1, there are two ring ribs;
2. There are 3 to 7 ripples at both ends;
3. There are two ring ribs, with 3 to 7 corrugations between the ring ribs and the bottom of the bucket top;
4, there are 3 rings.
Third, the steel bucket
1, steel bucket structure type
1 full opening tight ear bucket bucket 2 full-opening seal ring cover bucket 3 closed closed neck bucket 4 closed bucket
2, T-type barrel structure size
3, S-shaped barrel structure size
Fourth, steel barrel triple hemming structure
1, triple curling. Also known as seven-layer curling, it is the main form of closure that connects the closed drum body to the bottom (top) of the barrel.
2, the characteristics of triple curling
1 has better sealability 2 has stronger impact strength 3 has higher process requirements
3, triple hemming structure type
4. Design calculation of triple hemming structure
Five, steel barrel closure
1. Closed hoop type closure 1 screw type closed hoop. The two ends of the endless belt are connected with a screw to realize a device for fixing the lid.
2 Lever type closed hoop. The two ends of the endless belt are connected by a lever and the handle is fixed by moving the handle.
2. Screw closure. Screw closures are divided into two types: plug type and cap type.
1 Cockle type sealer 2 pressure sealer
3, top pressure closure. Divided into two types: bolt type and gland type.
1 bolt top pressure type closure 2 gland type closure
Section 2 Manufacturing Process of Steel Drum
First, the main material of steel drum
1. Properties of the steel drum material 1 Good plasticity and weldability 2 Sufficient strength and suitable hardness 3 Good corrosion resistance
2, commonly used barrel materials
3, the choice of plate thickness
Second, the barrel barrel manufacturing process
1. Circular closed barrel barrel manufacturing process 1 Cutting 2 Edge grinding 3 Roll round 4 Welding 5 Flanging 6 Rolling ripple 7 Expansion ring tendons
4. Processing technology of circular open drum barrel 1 reel spool 2 barrel necking neck
3, the barrel barrel manufacturing process
4. Manufacturing process of special barrel barrel
Three, barrel top and bottom of the barrel manufacturing process
1. Bottom maker 1 Shearing plate 2 Blanking and drawing 3 Sealing glue
2, barrel top manufacturing process 1 punching flange 2 lock 3 print mark
3, barrel lid manufacturing process
Fourth, seal combination process
1, double curling process precautions
2. Process of triple hemming 1 Forming process of triple hemming 2 Main factors affecting quality of triple hemming
Fifth, inside and outside spraying process
1, the role of steel drum surface coating
2. Painting process 1 Air spraying method 2 High pressure airless spraying method 3 Electrostatic spraying method
3, inner spraying process 1 surface treatment 2 inner spraying
4, spraying process
Sixth, automated production of steel barrels
1. Latest Results of Automatic Bucket Automation 1 Automatic Molding of the Bottom and Top of the Bucket 2 Automatic Buckling of the Flange of the Bucket Overlapped Partially Longitudinal Seam Weld of 3 Barrels 4 Repeated Inspection Center 5 Horizontal Painting Equipment 6 Printing Version Automated Production System 7 Steel Drum Automatic Leak Detection System 8 Warehouse Stack System
6. Trends of the automatic development of future barrels 1 Automatically-opened steel barrel automatic production equipment 2 Automatic printing equipment 3 Automatic barrel-bill production line 4 Best welding control 5 Automatic inspection equipment for steel barrels
Section III Quality Inspection of Steel Drums
First, the quality of steel barrels
1. Basic requirements 1 The capacity and structure size of the steel drum should comply with the national standard 2. The barrel body, top of the barrel and bottom of the barrel are all made of thin steel sheet. It is not allowed to spliced ​​3 barrels of welds. The top should be set according to the opening form
8. Performance requirements 1 Gas tightness test of steel drum 2 Hydraulic test of steel drum 3 Drop test of steel drum 4 Stacking test of steel drum
10 Quality Requirements 1 Sealer Assembly Quality Requirements 2 Steel Drum Inside and Outside Surface Protective Layer Quality Requirements 3 Appearance Quality Requirements
5, the use and maintenance of steel boring 1 in transport, loading and unloading should avoid collision, falling and rolling 2 steel drums should not be stacked in the open air, stacking the bottom layer should be placed cushion, outdoor blankets should be covered to prevent the sun , rain and blisters 3 steel drums that have been packaged inflammable, explosive or certain toxic substances are leaking and shall not be repaired to avoid dangerous accidents. 4 Recycling Reusable steel drums shall be repaired and painted to avoid rust.
Second, the quality of steel bucket inspection
1, performance, quality requirements
2. Test Method 1 Structure Size and Appearance Quality 2 Airtightness Test 3 Hydraulic Test 4 Drop Test 5 Stacking Test 6 Lifting Beam and Ring Strength Test 7 Film Adhesion Test
3, transportation, storage, precautions