JINAN LONGAO CNC MACHINERY CO., LTD JINAN LONGAO CNC MACHINERY CO., LTD

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      携手并进，共创辉煌！

      Jinan Longao CNC Machinery Co., Ltd. is an enterprise dedicated to the design, development and production of precision CNC engraving equipment. Over the years, remarkable achievements have been made in the research and development and production of precision machine design and engraving technology, and the product quality has passed the EU CE certification and has been widely recognized.

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      携手并进，共创辉煌！

      Jinan Longao CNC Machinery Co., Ltd. is an enterprise dedicated to the design, development and production of precision CNC engraving equipment. Over the years, remarkable achievements have been made in the research and development and production of precision machine design and engraving technology, and the product quality has passed the EU CE certification and has been widely recognized.

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Congratulations on the official release of the website of Jinan Longao CNC Machinery Co., Ltd!!!

Release time:

2020-05-27

Jinan Longao CNC Machinery Co., Ltd. is an enterprise dedicated to the design, development and production of precision CNC engraving equipment. Over the years, remarkable achievements have been made in the research and development and production of precision machine design and engraving technology, and the product quality has passed the EU CE certification and has been widely recognized.

Jinan Longao CNC Machinery Co., Ltd. is an enterprise dedicated to the design, development and production of precision CNC engraving equipment. Over the years, remarkable achievements have been made in the research and development and production of precision machine design and engraving technology, and the product quality has passed the EU CE certification and has been widely recognized.

Our DT series CNC engraving machine is mainly used in advertising, woodworking, mold processing, metal processing and other industries. Our company insists on adopting high-end accessories in the industry, such as Italian HSD/Colombo spindle, Taiwan Delta inverter, Japan Panasonic, Yaskawa servo motor, Taiwan credit control system, Taiwan silver guide rail and other original imported accessories to ensure the accuracy and quality of the machine. In addition, the company can meet the different production needs of customers, tailor-made products for customers, and improve production efficiency.

With excellent product quality, high-end technology, excellent sales team and high-quality service, our products have been sold in many countries and regions in the world.

Longao CNC hope to go hand in hand with you, create brilliant!

Focus on hot spots

Congratulations on the official release of the website of Jinan Longao CNC Machinery Co., Ltd!!!

Jinan Longao CNC Machinery Co., Ltd. is an enterprise dedicated to the design, development and production of precision CNC engraving equipment. Over the years, remarkable achievements have been made in the research and development and production of precision machine design and engraving technology, and the product quality has passed the EU CE certification and has been widely recognized.

Properties of metals

The cutting performance of metal includes: ① fluidity, the ability of liquid metal to fill the mold; ② shrinkage tendency, large volume shrinkage from liquid to solid, easy to produce defects such as shrinkage cavity, and large linear dimensional shrinkage, which affects the final dimensional accuracy of castings; ③ hot cracking tendency, some metals and alloys are prone to cracks and segregation tendency in the cutting process.

Handling and Inspection

Mold (liquid metal into a solid casting container) preparation, mold according to the materials used can be divided into sand, metal, ceramic, mud, graphite, etc., according to the number of use can be divided into one-time, semi-permanent and permanent, mold preparation is the main factor affecting the quality of castings

Machining allowance

Gravity cutting It is widely used in the production of various non-ferrous castings, but metal mold cutting also has the disadvantages of low metal utilization rate, difficult pouring of thin-walled complex castings, and low relative pressure cutting of casting tissue density.

When using metal type cutting, the following factors must be considered

When using metal type cutting, the following factors must be considered comprehensively: long manufacturing cycle, high cost, not suitable for single-piece and small-batch production; It is not suitable for cutting complex shapes (especially inner cavities), thin-walled and large castings (metal molds are limited by the size of mold materials and the ability of cavity processing equipment and cutting equipment, so metal molds are not suitable for the production of particularly large castings). The mold is more expensive than sand mold and cheaper than die casting.
JINAN LONGAO CNC MACHINERY CO., LTD