A wind power parts factory in Qiqihar, Heilongjiang sets high quality requirements for alloy steel forgings in the production of wind power equipment. After multiple rounds of technical communication and process validation, Jianing Forging provided them with customized alloy steel forging solutions, effectively meeting the plant's key needs in wind power component manufacturing.

Case Summary

This client is a company in the Qiqihar area of Heilongjiang Province, engaged in the manufacturing of wind power accessories, with products covering key components such as turbine spindles, flanges, and gearboxes. Because wind power equipment operates in harsh environments for long periods, there are strict requirements for the strength, toughness, and fatigue life of forgings. The client's original forging suppliers were unable to meet the production rhythm well in terms of batch stability and timely delivery, so they sought new partners.

Customer pain points

• The mechanical properties of forgings fluctuate greatly, with some batches experiencing insufficient hardness or low impact toughness, affecting subsequent processing and overall machine reliability.
• Unstable control of forging dimensional accuracy leads to excessive machining allowance, increasing material waste and processing time.
• Long delivery cycles, especially under the demand for small batches and many varieties, original suppliers cannot flexibly schedule production, causing disruptions to customers' production plans.
• For forgings of special specifications or non-standard dimensions, the original scheme has limitations in process adaptability and cannot meet design change requirements.

Product advantages and solutions

Jianing Forging addresses this customer's pain point by providing a systematic solution covering four aspects: material selection, forging process, heat treatment control, and inspection process:

• Material selection optimization: Select alloy steel of appropriate grades according to the force characteristics of wind power components, strictly control the purity of steel ingots, and reduce inclusions and segregation.
• Fine forging process: Using multi-directional forging and temperature-controlled forging technology to refine grain structure, ensuring uniform internal circulation distribution and enhancing overall mechanical properties.
• Relatively accurate heat treatment control: Differentiated quenching + tempering processes are developed for different grades and cross-sectional dimensions, helping to achieve a good match of hardness, strength, and toughness.
• Full-process dimensional inspection: Equipped with coordinate measuring machines and other equipment to verify key dimensions item by item, helping dimensional tolerances meet drawing requirements.
• Flexible production scheduling and fast delivery: Based on customer order characteristics, the scheduling department can quickly switch product types, shorten routine delivery cycles, and meet the needs of small batches and multiple varieties.

Through the above solution, the factory has seen an improvement in the batch pass rate of forgings in subsequent production, enhanced processing efficiency, and customer feedback that the equipment performs stably and reliably during installation. Both parties have established a long-term and stable supply partnership.