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Product Details:
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| Production Name: | Casting Roller For Casting Film | Material: | 45#,20# Q345B |
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| Surface: | Mirror Surface, Fog Surface | Flow-system: | Flow Channels Between Inner And Outer Tube Separated With Welded Leading Spirals |
| Dynamic Balancing: | Q=3.2 During Operation | Overall Deformation: | <0.05 Mm At Full Load |
| Highlight: | Film Casting Roller,45# Steel Casting Roller,dia 1000 Casting Roller |
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Casting Roller For Casting Film
Casting Roller Description:
The cast film roller adopts strict European manufacturing standards and undergoes multiple welding and heat treatment processes to ensure that the overall structure of the roller is strong and reliable. In order to ensure its efficient heat exchange effect, the flow channels of the casting roller are all specially designed in a spiral shape, and the coolant flow rate through the flow channels is calculated to minimize the roller surface temperature error and improve improve the temperature uniformity of the product. The dynamic balancing accuracy of rollers used for cast films is particularly important. Dedicated large-scale dynamic balance calibration equipment and multiple balance detection solutions enable it to run smoothly at high speeds.
Casting Roller characteristics
| Roller diameter | Φ800-1600mm |
| cylindricity and coaxiality of the roller | ≤0.005mm; |
| surface of the roller | hard chromium |
| chrome layer | 50~80um. |
| Roller surface temperature error | ±0.5~1℃; |
| Surface polished | mirror, super fine mirror, matte/matte, anti-stick roller surface treatment |
| Overall deformation | <0.05 mm at full load |
| Dynamic balancing | Q=3.2 during operation |
Producing qualified cast films not only requires adjusting the process on raw materials, but also mastering the processing conditions, among which temperature has a greater impact on film performance. The suitable production temperature is 230~250℃. The air knife on the cooling roller must be adjusted appropriately to keep the film cooled evenly and to avoid unstable thickness or failure to adhere to the roller, which may cause wrinkles or affect the appearance quality. In addition,the key points of the cast film production process include the design of the T-shaped machine head, the surface finishing of the cooling roller, and the monitoring of the film thickness through beta-ray or infrared thickness gauges to achieve satisfactory thickness requirements.
Material: Select high-quality 45# steel pipe, alloy steel pipe, precision steel pipe, etc.
Structure: Various structural designs such as inner tank spiral flow channel and jacket type
Processing: Advanced heat treatment process, quenching and tempering, after turning, assembly and other processing, the red sleeve is hot-fitted and welded to remove the application.
Strength, quenching, fine turning, fine grinding and plating, hard chrome, super fine grinding, precision grinding using American 3M abrasives Polished or sanded to matte finish.
Parameters: Roughness Ra0.005 (smoothness level 14 or above), no vibration lines, streaks, or roughening lines. Straightness, runout, coaxiality ≤0.005mm. Cooling or heating temperature difference ≤±1℃, thermal deformation ≤0.01mm. After quenching, the roller surface hardness is HRC55~58. After hard chromium plating, the heat treatment is HRC65 or above.
Application: PVC, ABS, PP, PT, PE, PC and other plastic sheets, sheets, films, papers,Leather, metal, fabric, decoration and other materials.
Contact Person: Maple
Tel: +86 15103371897
Fax: 86--311-80690567
