Custom Steel Hot Forged Hook

Product  Introduction

This is a custom-made winch hook, which is designed by our customer.  The hook's base material is alloy steel undergoes a rigorous manufacturing process: first forged or machined to shape, then treated with a zinc plating layer, followed by a chromate conversion coating that produces the characteristic iridescent "rainbow" finish.

Material and Process

Alloy steel is used to make the hook, and the hook is made by hot forged process. 

First, we begin to work the hook with the drawings and the dimensions which is provided by the customer:

Hot forging is carried out at high temperatures typically 1,050–1,200°C, where the steel billet is heated to a plastic state, then shaped by dies under hydraulic or mechanical presses. The hot forged process minimizes material waste compared to machining, as the forging process flows metal into the desired form.

After hot forging, the rough parts is come out.

The resulting blank undergoes post-forging steps cleaning scale, typically via shot blasting with steel grit or acid pickling in hydrochloric acid to remove mill scale, rust, and oxides, ensuring a clean substrate for plating. After descaling, the hooks enter the color zinc plating line. Zinc ions deposit from an electrolyte bath to form an 8–15μm thick layer.

Packing

Before packing we conduct the inspection of  the hook surface and dimensions to ensure they are qualified.

Then pack then with bubble bag individually and put into cartons. And laid the cartons on the pallet, wrapped with protective film to avoid the cartons scattering.

 With decades of industry expertise, Ningbo Joyo Metal Product  Co., Ltd. approach to manufacturing is rooted in meticulous precision, where every production process is executed with uncompromising attention to detail. Our seasoned team oversees each stage from material selection to final inspection.