Company Blog_Chongqing Fengdong Heat Treatment Engineering Co., Ltd.

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Lean Management in Heat Treatment Production

Heat treatment is an important component of the mechanical processing industry. Within the industry, there are two main types of production methods—each differing in scale and nature: one is small-batch, order-driven production for individual parts, and the other is a multi-batch, high-volume production model. In recent years, with the rapid development of the machinery industry, the heat treatment processing sector has also experienced swift growth. However, the technical standards and management practices in this sector remain unstandardized, resulting in suboptimal economic and social benefits. For enterprises seeking to grow and enhance their economic performance, it is essential to broadly analyze potential issues in heat treatment production while prioritizing quality improvement and cost reduction. Moreover, it is crucial to proactively identify and address possible problems at an early stage. By adopting lean management principles, optimizing processes and workflows, and standardizing operations and procedures, we can ensure that heat treatment quality is inherently built into the manufacturing process rather than merely inspected afterward. Only by earning greater customer trust and securing more orders can we effectively reduce heat treatment production costs.

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2024

Methods for Controlling Residual Austenite in Heat Treatment

After quenching, parts invariably retain some residual austenite, to a greater or lesser extent. Excessive residual austenite is detrimental to the service life and hardness of the parts, potentially leading to soft spots and dimensional instability. However, a moderate amount of residual austenite can actually enhance the fatigue strength of the parts. By carefully controlling the level of residual austenite, we can effectively manage product quality and service life, thereby achieving the desired outcomes.

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2024

Classification of Heat Treatment Cracks

Quenching cracks—longitudinal cracks (microstructural stress type), arc cracks (local tensile stress type), quenching cracks in large workpieces (longitudinal and transverse fractures), surface cracks along edges and contours (local tensile stress type), decarburization cracks, and Type II stress cracks.

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2024

A warm welcome to the faculty and students from Chongqing University of Science and Technology for their visit and study!

On September 23, 2024, Chongqing Fengdong Metal Surface Treatment Co., Ltd. warmly welcomed teachers and students from the Metallic Materials Engineering program at Chongqing University of Science and Technology for a visit aimed at broadening students’ horizons, deepening their understanding of the industry, and strengthening their professional awareness.

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2024

The 1st Technical Exchange Meeting on Three-Waste Treatment Technologies for Green and Intelligent Hot Working Workshops – Chongqing Metals

Improving Quality and Efficiency, Saving Energy and Reducing Costs — The First 2024 Green Intelligent Hot Working Workshop on Three-Waste Treatment Technologies Concludes Successfully

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2024

Thermal Stress and Its Classification

Thermal stresses can be broadly categorized into two types: thermal stresses and microstructural stresses. The distortion that occurs during heat treatment of a workpiece is the result of the combined effects of these two types of stresses. The state in which thermal stresses exist within a workpiece and their associated effects vary depending on the specific circumstances. Internal stresses caused by uneven heating or cooling are referred to as thermal stresses; internal stresses arising from the non-uniformity of phase transformations are called microstructural stresses. Additionally, internal stresses induced by the non-uniformity of microstructural transformations within the workpiece itself are known as residual stresses. The final stress state and magnitude of a workpiece after heat treatment—determined by the sum of thermal stresses, microstructural stresses, and residual stresses—are collectively referred to as residual stresses.

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2024

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Customer Service Hotline

Equipment Service: +86-15923378884 (Mr. Yin)

Processing Services: +86-13648364855 (Mr. Gao)

Jingkou Factory

Phone: +86-023-65180506

Email: yin.youzhi@fengdong.com

Address: No. 5, Jingsheng Road, Jingkou Industrial Park, Shapingba District, Chongqing, China.

Bishan Factory

Phone: +86-13648364855 (Mr. Gao)

Email: gao.xinjie@fengdong.com

Address: No. 219, Donglin Avenue, Biquan Subdistrict, Bishan District, Chongqing, China.

Equipment Service：+86-15923378884

Processing Services：+86-13648364855

Email：yin.youzhi@fengdong.com

Email：gao.xinjie@fengdong.com

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