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Technical
Specification Clear step on gray scale 3rd step, clear
Dot reproduction(%) 2-98%
Micro-line(impression) 6-12
Pressrun(impression) ≥50,000
Storage condition Temp:10-30℃, RH:Rh≤65%,
2years
Recommended
Processing
Conditions Dilution ratio GD-II : water=1:4(machine)
1:6(hand)
EXPLOSURE(UNIT) 35-50
Developing Temp(℃) 21-25
LIGHT SOURCE 3000W (LODINE GALLIUM LIGHT:100-120 SECONDS)
1METER(FOR DISTANCE)
Developing Time(S) 30-45
Contamination removal Retouching paste: 40s
Retouching solution: 10s
Gumming A even, thin coating, 20ml/㎡
Baking Normally unnecessary, if need
Oven-type: 240℃,4-5mins
Moving-type: 260℃,3-4mins
- Q: How do steel coils compare to other materials in terms of cost?
- Steel coils are generally more cost-effective compared to other materials due to their durability, versatility, and widespread availability in the market.
- Q: 7850kg/cu.m density is typical for all type of steel? like reibar, I- beam and so on
- 90% of the steels used today are plain mild carbon steels consisting of iron with less than 1% carbon content and as such have a density of about 7750 kg/cubic meter. Some special steels which have a significant percentage of alloying elements such as chrome or manganese or other elements will have greater density bringing the steel up to about 8000 kg / cubic meter. There are a greater many factors influencing the exact density of a steel. Even for steels of exactly the same content of iron , carbon and other alloying elements, there may be a difference ( very small mind you ) in density due to work hardening. The difference in this case is due to movement of dislocations which become locked in the grain boundaries and this forms a more dense crystal structure. For this same reason, the theoretical density of steel (which does not take into account dislocations) is greater than the measured density of steel.
- Q: How are steel coils used in the manufacturing of shipping containers?
- Steel coils are used in the manufacturing of shipping containers to provide strength, durability, and structural integrity. These coils are processed and shaped into the necessary components, such as walls, floors, and roofs, which are then assembled to create a sturdy container. The steel coils also allow for easy transportation and stacking of the containers, ensuring safe and efficient shipping of goods worldwide.
- Q: How do steel coils contribute to the marine vessel construction industry?
- Steel coils are essential components in the marine vessel construction industry as they play a crucial role in the fabrication of various structural elements of ships and boats. These coils are typically made of high-quality steel and are used in a variety of ways to contribute to the construction and performance of marine vessels. Firstly, steel coils are utilized in the construction of the hull, which is the main body of the ship. The hull requires strong and durable materials to withstand the harsh conditions of the sea, including waves, corrosion, and impacts. Steel coils provide the necessary strength and integrity to the hull, ensuring the vessel's structural integrity and safety. Moreover, steel coils are also employed in the fabrication of decks, bulkheads, and other internal structures of marine vessels. These components are crucial for dividing the ship into compartments, providing stability, and supporting various equipment and machinery. Steel coils are known for their excellent tensile strength, which allows them to bear heavy loads and resist deformation, making them ideal for constructing these vital components. Additionally, steel coils are used in the construction of propulsion systems and other mechanical parts of marine vessels. These coils are often shaped and formed into specific components, such as shafts, gears, and propellers, which are critical for the vessel's propulsion and maneuverability. The high strength and durability of steel coils ensure the reliability and efficiency of these mechanical systems, enabling smooth navigation and operation of the vessel. Furthermore, steel coils contribute to the marine vessel construction industry by enhancing the overall safety and longevity of ships and boats. Steel is known for its resistance to corrosion, which is a significant concern in marine environments due to the presence of saltwater. By utilizing steel coils, marine vessels can withstand the corrosive effects of seawater, reducing the need for frequent maintenance and repair. This, in turn, improves the lifespan of the vessel and reduces the risk of accidents or failures at sea. In conclusion, steel coils are indispensable in the marine vessel construction industry. These coils provide the necessary strength, durability, and resistance to corrosion, ensuring the safety, performance, and longevity of ships and boats. From the construction of the hull to the fabrication of internal structures and mechanical components, steel coils play a vital role in every aspect of marine vessel construction.
- Q: What are the challenges in coil recoiling?
- Some of the challenges in coil recoiling include achieving precise and consistent coiling, minimizing coil distortion and tangling, preventing material damage or breakage during recoiling, and ensuring efficient and safe handling of coiled materials. Additionally, factors such as coil size, weight, and material properties can also pose challenges in the recoiling process.
- Q: What are the different types of steel coil leveling methods?
- There are primarily two types of steel coil leveling methods: roller leveling and stretcher leveling. Roller leveling involves passing the coil through a series of rollers to remove any unevenness, resulting in a flat and level surface. Stretcher leveling, on the other hand, stretches the steel coil to remove any internal stresses and achieve a flat and level surface. Both methods are commonly used in the steel industry to produce high-quality and dimensionally accurate steel coils.
- Q: How are steel coils inspected for defects?
- Steel coils are inspected for defects using various methods to ensure that the quality of the product meets the required standards. One common method is visual inspection, where trained inspectors examine the surface of the coils for any visible defects such as cracks, scratches, or dents. This is usually done by visual observation or with the assistance of magnifying tools. Another method is magnetic particle inspection, which is used to detect surface and near-surface defects such as cracks or voids. In this process, a magnetic field is applied to the steel coil, and a magnetic powder is applied to the surface. If there are any defects, the magnetic powder will be attracted to them, making them visible to the inspector. Ultrasonic testing is also commonly used to inspect steel coils for defects. In this method, high-frequency sound waves are transmitted into the coil, and the reflected waves are analyzed. Any deviations in the sound waves can indicate the presence of defects such as cracks or voids within the coil. Additionally, eddy current testing is employed to detect defects in steel coils. This method uses electromagnetic induction to generate eddy currents within the coil. Any changes in these currents caused by defects in the material are detected and analyzed by the inspector. Lastly, some steel coils may undergo destructive testing, where a sample is taken from the coil and subjected to various tests such as tension or bend testing. These tests are performed to evaluate the mechanical properties of the steel, which can indirectly indicate the presence of defects. Overall, steel coils are inspected for defects through a combination of visual inspection, magnetic particle inspection, ultrasonic testing, eddy current testing, and potentially destructive testing. These methods ensure that any defects are identified and addressed, ensuring that only high-quality steel coils are delivered to customers.
- Q: How are steel coils used in the production of electrical enclosures?
- Steel coils are used in the production of electrical enclosures to provide structural strength and durability. The coils are typically cut and bent into specific shapes to form the body and panels of the enclosure. This helps to protect the electrical components inside from external elements and ensure safe operation.
- Q: Can steel coils be stretched?
- Yes, steel coils can be stretched.
- Q: Can steel coils be painted or coated?
- Yes, steel coils can be painted or coated. Painting or coating steel coils is a common practice to enhance their aesthetic appeal, protect against corrosion, and improve durability.
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Steel Specification:
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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