In sand casting, shrinkage cavities and shrinkage porosity are the most common internal defects in castings. Shrinkage cavities typically manifest as irregular large cavities in thick areas or heat center zones of the casting, characterized by rough walls and dendritic crystals. Shrinkage porosity appears as fine dispersed pore clusters, predominantly occurring along casting axes or at thickness junctions. These defects severely compromise mechanical properties and airtightness, potentially leading to cracks and premature failure. As core processes in the casting workflow, mold design and core-making operations play a decisive role in preventing shrinkage porosity and cavities. This article systematically outlines effective measures to reduce their occurrence rates by focusing on critical aspects of mold-making procedures.
In the golden September, with the cool autumn breeze and joyful harvest, Wei Shihai, an employee of Dalian Jiachuang Metal Manufacturing Co., Ltd., welcomes another important and glorious turning point in his life - retirement.
Recently, Dalian Jiachuang Metal Manufacturing Co., Ltd. specially designed and manufactured 8 impeller products for the well-known domestic joint venture company, EBARA Machinery Zibo Co., Ltd. After undergoing multiple rigorous tests, these products achieved full data compliance and far exceeded expectations in terms of quality. They successfully passed the acceptance inspection and received high praise from the customers, writing a magnificent new chapter in the cooperation between the two parties.
Foundry production represents a typical working environment characterized by high temperatures and intense physical demands. Safety management, in this context, is a complex yet crucial systematic endeavor. It is essential to establish and strengthen a top - down safety defense line and foster a corporate culture centered on safety within Jiachuang, thereby continuously enhancing the company's safety management standards.
From August 27th to 28th, 2025, the large domestic state-owned enterprise Shenyang Blower Works Group Nuclear Pump Co., Ltd. came to our company for factory inspection.
Since its establishment, our company has specialized in metal casting and machining. With strong technical capabilities, advanced production equipment, and a robust management system, we have forged a path of steady, high-quality development.
In order to create a positive corporate culture atmosphere and enhance employee cohesion and sense of belonging, our company not only holds annual meetings every year, but also actively organizes various team-building activities so that every employee can gain growth and happiness after work. These colorful collective activities have become an important source of power to promote the sustainable development of the company.
Recently, our company's employees held a technical seminar in the conference room. Engineers and technical backbones from various departments gathered together, wearing uniform work clothes, sitting around a bright and spacious conference table, fully demonstrating the team's professional style and collaborative spirit.
