In the production process of cylinder blocks, the dimensional accuracy of the mold is the basis for ensuring product quality. During the mold design stage, Xiangshan Lianqiang's engineers perform detailed dimensional calculations based on the design drawings of the cylinder block to ensure that the manufacturing accuracy of the mold meets the strict requirements of the cylinder block. During the mold manufacturing process, Xiangshan Lianqiang introduced high-end CNC machine tools and machining centers, combined with high-precision measuring equipment such as coordinate measuring machines (CMMs) and laser scanners, to strictly measure and control each key dimension of the mold to ensure that the dimensional accuracy of the mold meets the design standards.

The dimensional accuracy requirements of the cylinder block mold cover many aspects such as the overall size, cavity size, and the mounting hole size of the guide pin and guide sleeve. The accuracy standards of these dimensions are extremely strict, usually controlled within the IT8 standard tolerance range or even higher. For example, the sand casting cylinder block mold is usually in the IT15-18 level, while the precision casting mold can reach the IT8 standard tolerance. This high-precision requirement not only guarantees the dimensional stability of the cylinder block during the manufacturing process, but also ensures the consistency of the final product.

In addition to dimensional accuracy, the shape and position accuracy of the cylinder block mold are also crucial. Shape accuracy involves the geometric shape requirements of key parts such as mold cavity, guide pins and guide sleeves, including straightness, flatness and roundness. Position accuracy focuses on the relative position relationship of each mold component in space, such as verticality, parallelism and coaxiality.

Xiangshan Lianqiang uses advanced design and manufacturing technologies in the mold manufacturing process, including 3D modeling, simulation analysis and rapid prototyping. The application of these technologies ensures strict control of the mold in shape and position accuracy. At the same time, Xiangshan Lianqiang uses precise measurement tools and methods, such as laser rangefinders and interferometers, to comprehensively measure and verify the shape and position accuracy of the mold to ensure that the manufacturing accuracy of the mold meets the design requirements.

The surface accuracy of the cylinder block mold is also an important factor affecting product quality. The surface of the mold needs to be smooth, flat and defect-free to ensure the surface quality and performance of the cylinder block during the production process. To this end, Xiangshan Lianqiang applies a variety of advanced surface treatment technologies in mold manufacturing, including polishing, grinding and sandblasting, for detailed surface grinding and treatment.

In addition, Xiangshan Lianqiang has also introduced high-precision testing equipment and methods, such as surface roughness measuring instruments and optical microscopes, to comprehensively measure and verify the surface accuracy of the mold. This series of measures ensures the conformity of the mold surface accuracy, thus laying a solid foundation for the high-quality production of the cylinder body.