Equipment Technical Specifications
2.1.1、 | Applicable Raw Materials | |
（1） | Steel Coil Inner Diameter: | φ610～760 mm |
（2） | Steel Coil Outer Diameter (max): | φ2000 mm |
（3） | Steel Coil Weight (max): | 16 t |
（4） | Steel Strip Thickness: | 4-6 mm (meets the requirements of GB/T 709-2006 national standard) |
（5） | Steel Strip Width (max): | 700 mm |
（6） | Steel Strip Material: | Q345B hot-rolled steel strip |
2.1.2、 | Working Surface Height: | 800 mm (i.e., the distance between the lower surface of the steel strip and the bottom of the forming machine during input) |
2.1.3、 | Maximum Forming Speed: | 20 m/min (excluding non-continuous operation time for butt welding of cut ends) |
2.1.4、 | Maximum Hydraulic System Operating Pressure: | Pmax = 12 MPa |
2.1.5、 | Total Power Consumption: | Approximately 205 kW |
2.1.6、 | Footprint (L x W x H): | Approximately 47 m × 6.9 m × 3.1 m (2.33 m above ground level) |
2.1.7、 | Feed and Discharge Directions: | Right feed |
2.2. Overall Technical Requirements for Equipment
2.2.1. The equipment must have suitable automation capabilities, with the entire processing process controlled by programmable controls. The structural design must be safe, stable, reliable, and easy to operate and maintain.
2.2.2. The roll configuration must ensure the quality of the finished product and enable quick and easy adjustment to the product specifications specified in Table 1-1 without replacing any rolls.
2.2.3. When two rolls of steel plate are butted together with unequal widths, the equipment must be capable of butting them symmetrically about the centerline of the roll width.
2.2.4. The surface of steel structural components must be treated to Sa2.5 according to the "Surface Rust Grade and Rust Removal Grade for Steel Materials Before Painting" (GB8923-88), and the surface cleanliness must reach St3 after weld grinding. Apply one coat each of primer and intermediate paint, and two coats of topcoat, with a total dry film thickness of no less than 160μm and no natural fading for five years. The topcoat color is to be agreed upon by both parties (yellow for transmission components).
2.3 Equipment Composition and Product Forming Process
The loading trolley conveys the steel strip coils → the uncoiler unwinds the coils → the straightening machine guides and feeds the strips → the leveling machine straightens the strips → the shearing and butt welding device shears the strip ends and welds them (manually operated) → the forming unit bends and forms the strips → the cutting machine cuts the strips to length online → the products are taken off the line and stored in a collection mechanism.
Figure 2-1 is a schematic diagram of this production line.
The production line is also equipped with a corresponding hydraulic system and electrical programmable control system.
