What are the requirements for the material and appearance of the finished product of the hook?
crane hook is an important crane accessories, and it is a non-generic accessories. Therefore, it undertakes important processing tasks, and its performance is also related to the safety during the lifting process. Therefore, in the processing step, there should be strict requirements on the material of the hook and the appearance of the finished product. Next, let’s take a look at the introduction to the hoisting hook manufacturer:
The hook material should have a certain tensile strength, and is relatively high in rigidity and toughness, so that it can be safe and reliable. The selection of hook material should be low-carbon steel or low-alloy steel in accordance with relevant national standards; plate hooks generally use Q235A and C3 steel specified in "Technical Conditions of Ordinary Carbon Structural Steel", or 16Mn steel specified in GB/T1591-94 "Technical Conditions of Low-alloy Structural Steel".
The forging hooks of lifting accessories are generally used for 20 steels specified in GB/T699-88 (carbon structural steel number and general technical conditions".
In addition, some hooks are cold-bending. After hot forging and welding, in order to reduce cold work stress, thermal stress and welding stress, appropriate heat treatment must be carried out, such as tempering and tempering treatment.
In addition, the lifting hook should do the following after it is made: no defects such as cracks or cracks on the surface; whether there are fatigue deformation, cracks and related wear of the pins and sleeves on the neck and surface of the hook.
Crane hook is an important crane accessories, and it is a non-generic accessories. Therefore, it undertakes important processing tasks, and its performance is also related to the safety during the lifting process. Therefore, in the processing step, there should be strict requirements on the material of the hook and the appearance of the finished product. Next, let’s take a look at the introduction to the hoisting hook manufacturer:
The hook material should have a certain tensile strength, and is relatively high in rigidity and toughness, so that it can be safe and reliable. The selection of hook material should be low-carbon steel or low-alloy steel in accordance with relevant national standards; plate hooks generally use Q235A and C3 steel specified in "Technical Conditions of Ordinary Carbon Structural Steel", or 16Mn steel specified in GB/T1591-94 "Technical Conditions of Low-alloy Structural Steel".
The forging hooks of lifting accessories are generally used for 20 steels specified in GB/T699-88 (carbon structural steel number and general technical conditions".
In addition, some hooks are cold-bending. After hot forging and welding, in order to reduce cold work stress, thermal stress and welding stress, appropriate heat treatment must be carried out, such as tempering and tempering treatment.
In addition, the lifting hook should do the following after it is made: no defects such as cracks or cracks on the surface; whether there are fatigue deformation, cracks and related wear of the pins and sleeves on the neck and surface of the hook.
Crane hook is an important crane accessories, and it is a non-generic accessories. Therefore, it undertakes important processing tasks, and its performance is also related to the safety during the lifting process. Therefore, in the processing step, there should be strict requirements on the material of the hook and the appearance of the finished product. Next, let’s take a look at the introduction to the hoisting hook manufacturer:
The hook material should have a certain tensile strength, and is relatively high in rigidity and toughness, so that it can be safe and reliable. The selection of hook material should be low-carbon steel or low-alloy steel in accordance with relevant national standards; plate hooks generally use Q235A and C3 steel specified in "Technical Conditions of Ordinary Carbon Structural Steel", or 16Mn steel specified in GB/T1591-94 "Technical Conditions of Low-alloy Structural Steel".
The forging hooks of lifting accessories are generally used for 20 steels specified in GB/T699-88 (carbon structural steel number and general technical conditions".
In addition, some hooks are cold-bending. After hot forging and welding, in order to reduce cold work stress, thermal stress and welding stress, appropriate heat treatment must be carried out, such as tempering and tempering treatment.
In addition, the lifting hook should do the following after it is made: no defects such as cracks or cracks on the surface; whether there are fatigue deformation, cracks and related wear of the pins and sleeves on the neck and surface of the hook.
Inquiry
Please leave us your requirements, we will contact you soon.