Nhiệm vụ của nhà gia công thép là gì?
Steel fabricators are the metalworking professionals who transform raw steel shapes into custom-made structures and components. Their job involves a variety of tasks, including:
- Cutting: Using specialized equipment like plasma cutters, oxy fuel torches, or saws, they precisely cut steel sections according to engineering plans.
- Drilling: They create precise holes in steel components using drilling machines.
- Bending: Steel fabricators bend steel sections to achieve the desired shapes using bending brakes or press brakes.
- Welding: This is a crucial skill, as they join steel pieces together using various welding techniques like arc welding or MIG welding.
- Assembling: Fabricators thoroughly put together the individual steel components to form the final structure, ensuring proper fit and alignment.
- Quality Control: Throughout the process, they conduct inspections to ensure the fabricated steel meets the required specifications and adheres to safety standards.
In essence, steel fabricators act as partners, collaborating with engineers and clients to bring design concepts to life. Their expertise is vital in various industries such as construction, mining, manufacturing, and energy.
What are the benefits of structural steel?
The reason why structural steel is among the top materials used within the manufacturing as well as construction industry is because they offer a lot of benefits, even long-lasting ones too, such as:
Thân thiện với môi trường, bền vững và bền bỉ
Thế giới ngày nay đang chuyển hướng về mục tiêu bảo vệ tự nhiên cho các thế hệ tương lai bằng cách sử dụng các sản phẩm và vật liệu sạch và bền vững, trong đó có thép. Những kết cấu thép không chỉ thân thiện với môi trường mà còn bền vững trong thời gian dài.
Đầu tiên, thép có thể tái chế và có tác động carbon thấp giúp giảm khí thải nhà kính. Tính năng này giúp thép được coi là vật liệu "xanh" vì có thể tái chế và sử dụng lại nhiều lần mà không mất đi cấu hình và tính chất vật lý. Điều này giúp giảm lượng chất thải công nghiệp xả ra môi trường.
Thứ hai, thép rất bền vì có khả năng chịu được điều kiện thời tiết khắc nghiệt, thậm chí cả những cơn bão. Ngoài ra thép là vật liệu không bắt lửa nên giảm đáng kể về cháy nổ. Vì thế vật liệu bền bỉ này có thể giúp chống lại điều kiện khắc nghiệt và giảm tác động gây hư hỏng đến các vật liệu khác.
Tiết kiệm chi phí
Lạm phát có thể gây ra biến động về giá, dẫn đến giá thầu tăng và mọi thứ liên quan đến việc xây dựng sẽ có giá cao hơn trước. Chọn kết cấu thép cho dự án tiếp theo của bạn sẽ giúp giảm chi phí tổng thể và nâng cao giá trị của nó. Bằng cách sử dụng thép, bạn có thể tiết kiệm rất nhiều ngân sách vì giá thép vẫn ổn định và phù hợp với túi tiền của các doanh nghiệp lớn và nhỏ nhờ 4 yếu tố chính: giá cả, chi phí vận chuyển, độ bền và sự phát triển xây dựng trong tương lai.
Structural steel is normally priced by weight and as of November 2022, steel prices in general continue to move lower with hot-rolled steel reaching roughly $626/ton and cold-rolled steel at around $879/ton. In addition, structural steel is relatively lightweight compared to other types of framing, which helps big time in reducing the shipping cost. Not only that, structural steel also has great durability as it is regarded as one of the toughest and most durable building materials out there.
The value of steel does not only show in the present but also in the future if and when a project will be modified or expanded. Then, steel framing systems can be reconfigured and expanded into new shapes since they are highly adaptable.
Tiết kiệm thời gian
Với kết cấu thép tiền chế, quá trình thi công sẽ tiến hành nhanh hơn do quá trình cắt, hàn, buộc chặt tại chỗ không còn cần thiết nữa. Kết quả là thời gian và số giờ lao động giảm đáng kể. Khi khung và vỏ của công trình được hoàn thành nhanh chóng, những người thợ có tay nghề cao có thể tập trung hoàn thành phần còn lại của công việc nhanh hơn. Việc xây dựng càng nhanh thì các doanh nghiệp càng có thể bắt đầu tạo doanh thu và đóng góp cho nền kinh tế nhanh hơn.
An toàn
Surprisingly, steel doesn’t catch fire, ignite nor spread flames. In addition, when used in construction and building, stainless steel fabricated parts are resistant to pests such as termites. In some cases, it can be resistant to rust and corrosion when properly coated. Thus, steel can also be cleaned easily is mold resisted. Thanks to this feature, you can easily spot stainless steel fabrication projects in the medical and food service industries.
Is metal fabrication different from steel milling?
Yes, metal fabrication and steel milling are different processes within the metalworking industry, although they can sometimes be interconnected. Here’s a breakdown of the key differences:
Metal Fabrication
- Process: Focuses on shaping and assembling pre-existing metal shapes (often produced through steel milling) into various end products.
- Materials: Works with a wider range of metals besides steel, including aluminum, copper, brass, etc.
- Techniques: Employs various techniques like cutting, bending, welding, drilling, and assembling to modify and join metal pieces.
- Examples: Fabricated products include building frames, pipes, railings, machinery components, etc.
Steel Milling
- Process: Primarily deals with the shaping and transformation of raw steel into various usable forms.
- Materials: Focuses specifically on steel, processing it from its raw form (iron ore) or semi-finished products (like slabs or blooms).
- Techniques: Utilizes large-scale machinery like rolling mills, forging presses, and extruders to shape and refine steel.
- Examples: Steel milling produces various products like sheets, plates, bars, beams, and angles.
What are some steel structure fabrication methods?
Bolted Steel Connections
This method utilizes high-strength bolts to fasten steel components together. It offers advantages like easy assembly and disassembly, which can be helpful for temporary structures or those requiring future modifications.
Welded Steel Connections
Welding is a widely used method that creates permanent and very strong joints between steel pieces. It offers high strength and load-bearing capacity for permanent structures.
Riveted Steel Connections
While less common today, riveting was a traditional method using rivets to join steel elements.
Cast Steel Connections
Cast steel connections are a method for joining steel members using pre-fabricated cast steel components.
Prefabricated Steel Structures
Prefabricated steel structures are a method where the elements of a structure are manufactured off-site in a controlled workshop environment and then assembled on-site at the final location.
Additional Fabrication Methods
- Mechanically Decked Floor Systems: This involves using profiled steel sheets with shear connectors to create a composite floor deck that combines the strength of steel with the fire resistance of concrete.
- Cold-Formed Steel (CFS) Framing: This method utilizes lightweight, pre-formed steel sections for walls, roofs, and non-load-bearing structures. It offers advantages like ease of installation and cost-effectiveness for specific applications.
- Steel Truss Fabrication: Trusses are triangular structures used for roofs and bridges. Fabrication involves cutting, shaping, and connecting steel members to create the desired truss configuration.
- Pipe Fabrication: This is the process of shaping and joining steel pipes for various applications, including pipelines, pressure vessels, and handrails.
Choosing the Right Method
The selection of the most suitable steel structure fabrication method depends on several factors, including:
- Project requirements: Factors like load-bearing capacity, desired permanence, and future modification needs influence the choice.
- Material properties: The type and thickness of steel used can impact the feasibility of certain methods.
- Cost considerations: Different methods vary in cost of materials, labor, and equipment.
- Design complexity: Simple structures may utilize bolts, while complex designs might require welding.
Steel fabrication companies often have expertise in multiple methods, allowing them to select the most appropriate approach for each project.
What are the Main steps of the structural steel fabrication process?
1. Design and Material Acquisition
Project Planning: Engineers develop detailed plans and specifications for the structure, including the size, shape, and quantity of steel components needed.
Material Procurement: Based on the design, the steel fabrication company acquires the necessary steel plates, beams, angles, channels, and other shapes in the required dimensions and grades.
2. Steel Cutting and Drilling
Computerized Cutting: Modern fabrication shops utilize computer-controlled machinery like plasma cutters, lasers, or saws to precisely cut steel components according to the design specifications.
Drilling and Punching: Holes are drilled or punched into the steel components for future connections using bolts, rivets, or welding.
3. Shaping and Bending (if required)
Bending: Depending on the design, specific steel sections may require bending to achieve the desired shapes. This can be done using hydraulic presses, rolling mills, or other specialized equipment.
4. Assembly and Welding
Positioning and Tack Welding: Steel components are positioned and temporarily tack welded together to ensure proper alignment and fit.
Final Welding: Certified welders use various welding techniques (e.g., arc welding, MIG welding) to create strong and permanent joints between the steel elements.
5. Quality Control and Inspection
Rigorous Inspections: Throughout the fabrication process, the steel components undergo thorough inspections to ensure they meet dimensional tolerances, welding quality standards, and any other relevant specifications. This may involve visual inspection, dimensional checks, and non-destructive testing methods.
6. Surface Treatment and Painting (optional)
Sandblasting or Shot Blasting: In some cases, the steel components may be sandblasted or shot blasted to remove surface impurities and prepare the surface for painting.
Painting or Coating: To protect the steel from corrosion and ensure aesthetics, a coat of paint or other protective coating may be applied.
7. Delivery and On-Site Assembly
Packaging and Labeling: The finished steel components are carefully labeled, packaged, and loaded for transportation to the construction site.
On-Site Construction: Steel erectors use cranes and other equipment to lift and assemble the prefabricated steel components according to the design plans.
Chi phí chế tạo kim loại có đắt không?
Unfortunately, there isn’t a precise answer for this question. This is because the cost of the sheet metal fabrication process involved a lot of stages combined. Each stage will have varied prices depending on the demand of the clients / customers and the difficulty of the project.
To break it down, sheet metal fabrication costs can be deciphered by factors such as:
Chi phí lắp đặt
Chi phí này thường bao gồm việc xin giấy phép cho việc lắp đặt, mua đồ bảo hộ chuyên dụng, thuê các chuyên gia và chi phí vận chuyển các bộ phận đến công trường.
Chi phí vật liệu nguyên liệu
Tùy thuộc vào loại kim loại yêu cầu như nhôm, đồng, thép, vv., mỗi loại sẽ có giá khác nhau và cũng phụ thuộc vào độ dày. Chi phí vật liệu cũng có thể biến đổi do lạm phát, vận chuyển và chuỗi cung ứng.
Chi phí làm việc theo yêu cầu
Đối với các dự án phức tạp và tùy chỉnh theo yêu cầu riêng biệt của khách hàng, có thể cần thêm lao động thủ công hoặc sử dụng phương pháp cơ khí. Để đảm bảo chất lượng theo yêu cầu tiêu chuẩn của khách hàng ta cần những thợ lành nghề và kỹ thuật viên có kinh nghiệm tỉ mỉ trong từng chi tiết nhỏ. Bên cạnh đó kết hợp sử dụng phần mềm CAD/CAM để đảm bảo thành phẩm đạt độ chính xác cao.
Chi phí gia công
Quá trình chế tạo kim loại bao gồm nhiều bước như cắt, hàn, uốn, vv. Mỗi bước đòi hỏi các loại máy móc và thiết bị cụ thể. Tuy nhiên khi đơn giản hóa các bước gia công có thể giảm chi phí.
Độ phức tạp của thiết kế
Những thiết kế đơn giản sẽ giảm chi phí. Ngược lại, thiết kế phức tạp sẽ tăng thời gian và số bước làm việc, vì vậy chi phí cũng tăng.
Chi phí cho cước vận chuyển cuối
Tóm lại, chi phí chế tạo tấm kim loại có thể dao động từ 300 đến 4000 đô la, tùy thuộc vào yêu cầu của khách hàng và các yếu tố đã liệt kê trên.
What are the key standards a steel fabrication provider should meet?
Steel fabrication providers should meet a variety of standards to ensure the quality, safety, and compliance of their work. Here are some key ones:
- ISO 9001 Quality Management Systems: Demonstrating a commitment to consistent quality in all aspects of their fabrication processes.
- ISO 14001 and OHSAS 18001 Health Safety and Environment Management Systems: Prioritizing a safe and sustainable work environment for both employees and the surrounding area.
- AWS certified welders and welding inspectors: Ensuring welds meet the highest industry standards for structural integrity and safety.
- BS EN 1090-1 and 1090-2 for CE Marking: Guaranteeing compliance with European safety regulations for steel structures.
- CSA W47.1 Canada Standard Association certification: Meeting the stringent requirements for steel fabrication projects in Canada.
- AISC American Institute of Steel Construction: Upholding the standards set by a leading North American steel construction association.
- ASME- American Society of Mechanical Engineers: Complying with ASME boiler and pressure vessel codes for pressure-containing equipment.
- API- American Petroleum Institute: Adhering to API standards for steel fabrication in the oil and gas industry.
- AWWA- American Water Work Association: Meeting the specific requirements for steel structures used in water treatment and distribution systems.\
- ACRS- Australia Certification Authority for Reinforcing and Structural steels: Ensuring compliance with Australian standards for reinforcing and structural steels.
- SSPC- Steel Structure Protective Coatings: Demonstrating expertise in applying protective coatings that extend the lifespan of steel structures.
- NACE International-National Association of Corrosion Engineers: Leveraging NACE standards to prevent corrosion and ensure the durability of steel structures.
At VIVABLAST, we proudly hold the industry’s most coveted quality certifications, including: ISO 9001:2015, AS (Australian Standards), JIS (Japan Industrial Standards) and other certifications in Europe, America…
Và cũng có khả năng trong:
- ASME Section I
- ASME Section VIII, div1
- ASME Section VIII, div2
Tất cả các phạm vi được thực hiện tuân thủ các tiêu chuẩn quốc tế (ISO 9001 và OHSAS 18001 mới nhất) và các thông số kỹ thuật của khách hàng.
Đâu là nơi cung cấp dịch vụ gia công kim loại chất lượng?
Back in 2017, Vietnam made it to the top 20 world’s largest steel-producing countries when it produced around 17.91M tons of steel and ever since, the metal economy in Vietnam has witnessed exceptional growth to reach the 13 position in 2021.
Hence, Vietnam is considered an excellent location for any foreign business to invest in. For projects of various sizes, from small to big, metal fabrication service is indeed very essential and one of the top brands that provide quality metal fabrication service in Vietnam is VIVABLAST.
With 30 years of operating and still counting, VIVABLAST provides professional integrated solutions and specialty services tailored for steel fabrication and installation in projects, construction and infrastructure. What makes VIVABLAST stand out is thanks to great organizational capabilities as well as reasonable financial capabilities to undertake industrial projects with a large team of highly trained steel fabricators, rich in operational experience both locally and internationally. VIVABLAST is positioned to provide the highest level of quality workmanship through the dedication and skill of in-house fabricators. Moreover, our fabrication facility utilizes state-of-the-art equipment to handle every aspect of steel fabrication.
Our facilities include:
- Hệ thống lắp ráp dầm thép
- Cầu trục tải trọng 10 tấn, 5 tấn, 1.5 tấn
- Máy ép thủy lực 300 tấn
- 3 Máy cắt và đục lỗ thủy lực
- Máy khoan xuyên tâm
- Máy cưa vòng - cưa lọng
- Máy cắt xén
- Máy cán thép ống và thép hình
- Thiết bị cắt kim loại bằng Oxy Gas
- Thiết bị hàn hồ quang điện, Hàn hồ quang khí MIG
- Thiết bị cắt plasma và laser
In order to provide excellent steel fabrication solutions for our clients, VIVABLAST has been enhancing the fabrication capability in both facility and experience. We are now capable of offering a full scope of steel fabrication at our workshop and mechanical solutions of re-installation and finishing at the clients’ site.
Ngoài ra, chúng tôi còn rất thành thạo trong việc chế tạo thiết bị, đặc biệt là Hệ thống xả khí và các bộ phận không chịu áp suất, với sự hỗ trợ của các đối tác chế tạo của chúng tôi.
Over time, VIVABLAST has succeeded as a reliable subcontractor for many International & Domestic companies by delivering our professional services to such prestigious companies as PIRIOU, JGCS, Technip, KNOC, Metacor, PTSC groups, Vietsovpetro, etc. with great passion.
By choosing VIVABLAST, your business will gain a lot of benefits. Firstly, we have a group of skilled fabricators that can create high-quality crafts. Secondly, we can provide the best consultation for your projects and constructions thanks to our experience gained throughout many years working in the industry. Thirdly, we have all the resources needed to make things work, be it the technology, facilities or manpower. Last but not least, cost-saving.
Những nhà sản xuất / gia công thép hàng đầu tại Việt Nam là ai?
According to the World Steel Association, in the period of 2017-2018, Vietnam was one of the fastest figures when it comes to metal production with the output increased by nearly 40%; peak reached a record high of 14.1M tons of metal produced in the country. Since then, the metal industry has been on a great track and many big names within the nation appeared.
- The top 10 largest metal manufacturing companies in Vietnam of 2024 include:
- Hoa Phat Group
- Formosa Ha Tinh
- VAS Group
- Hoa Sen Group
- Ton Dong A Corporation
- Nam Kim Group
- Southern Steel Sheet Co., Ltd
- TVP Steel Joint Stock Company
- SMC Trading Investment Joint Stock Company
- Tay Nam Steel
Source: https://mrssteel.com.vn/blogs/steel-blog/top-10-largest-steel-mills-in-vietnam-2024
While the top 10 largest steel manufacturing companies in Vietnam for 2024, focus on large-scale steel production, VIVABLAST Vung Tau Workshop plays a distinct role in the Vietnamese steel industry. VIVABLAST’s workshop specializes in steel fabrication, catering to projects requiring customized steel structures. Our expertise ensures the creation of high-quality, functional steel components that meet specific project needs.
For more information please visit our VIVABLAST’s fabrication solutions.
