User and Operating Instructions for Haffman Groove Rolling Mill

Haffman grooves find extensive applications in various fields such as metallurgy, construction, power, railways, nuclear reactors, etc. They are used in applications like anchoring for building curtain wall embedded parts, industrial plant construction, bridge and tunnel pipeline supports, and fastener matching connections. The rolling process for Haffman grooves is more complex than conventional rolling, and it is generally performed through continuous hot rolling using a transverse rolling mill. Since the rolling rolls and bearings are subject to force on one side in a transverse rolling mill, it presents operational challenges. Therefore, it is essential to standardize the operation of steel rolling workers to ensure the normal production of steel rolling equipment.

I. Pre-start Check of the Rolling Mill

Check if there are any rolled products inside the rolling mill; if so, they must be cleared.

Inspect whether there is an oil shortage in the rolling mill bearings, hydraulic unit oil tank, and dust collector gearbox.

Verify if all electrical instruments are at zero, and check the integrity of all contact signals and emergency switches.

Check for foreign objects or misalignment on the belts and the condition of belt joints.

Lubrication and all related work must be performed after the rolling mill is stopped.

Basic Technical Requirements for Haffman Groove Embedded Parts:

Both C-shaped steel and I-beams are hot-rolled.

Material: Q235.

Haffman groove section dimensions: 80×50×25, product length 200mm-800mm (customizable based on requirements).

Surface hot-dip galvanizing treatment with a zinc layer thickness not less than 55μm.

Basic Technical Requirements for Hot-forged T-bolts:

Made of 45# steel, forged manufacturing, and quenched and tempered.

T-bolt tensile resistance to C-groove embedded parts is not less than 70KN.

Threads comply with GB196 and GB197 standards.

Surface galvanization passivation treatment with a galvanized thickness not less than 15μm.

Characteristics of Haffman Groove Embedded Parts:

Haffman groove embedded parts use high-quality steel hot-rolled C-section steel and I-beams, welded and then hot-dip galvanized, subjected to multiple processes and strict testing.

Haffman groove embedded parts are used to anchor and fix the reinforcement of concrete, replacing the drilling installation mode with intelligent installation of T-bolt positioning.

Combined with the use of locking plates and T-bolts, Haffman groove embedded parts expand a broader range of applications.

Haffman groove embedded parts are designed reasonably and widely used in anchor fasteners for high-rise building exteriors.

Replaces post-welding after construction. Easy and quick installation requires only simple tools, and installation can be completed by installers.

Haffman groove embedded parts can be customized according to the requirements of architectural design with different specifications and sizes.

Scientific hot-rolling process, coupled with strict welding technology and high-quality hot-dip galvanized coating, ensures the quality of Haffman groove embedded parts.

Haffman groove and embedded parts are ideal fixtures that are easy to install and adjustable. The groove can be filled with foam or bar-shaped filling material to prevent concrete from entering the groove.

Haffman groove steel can be used to fix any component, such as: 1. Concrete curtain walls; 2. Prefabricated concrete slabs; 3. Pipeline support systems; 4. Brick structure supports.

Haffman groove steel is also suitable for all fixtures that experience dynamic loading, such as lifting rails or mechanical fixtures. Special hot-rolled steel sections can be applied for this purpose.

Quality characteristics include high load-bearing capacity, low margin (as small as 5cm), easy adjustment, noise-free and dust-free installation, official certification for static and dynamic loading, and excellent corrosion resistance using stainless steel or hot-dip galvanized steel materials.