Warm congratulations to Yu Guofeng, the general manager of cast iron branch of Yuanda valve group, Sun Jihai, the manager of the first production department, and Comrade Zhang Xiaoning, the deputy manager, for jointly compiling the article "ramming riser technology and application", which has successfully passed the review of the editorial department of intercontinental media, and will be published in intercontinental casting in October 2019.

Intercontinental casting is a magazine (website) concerned by many casting technicians. The successful publication of this paper will make our company's advanced casting technology show to the whole casting industry, and take a big step forward in our company's casting technology to achieve the strategic goal of "going global".

2019 is a year of innovation and development of cast iron casting technology. From the beginning of the year to the present, the cast iron production department of our cast iron branch has improved the resin sand large-diameter casting and the traditional clay sand casting process under the guidance of lean thinking, based on accurate casting simulation software, guaranteed by advanced casting equipment and supported by perfect inspection and testing. With the joint efforts of a strong technical team, the expected objectives have been achieved. He also published more than 10 professional technical papers, such as "Research on the casting process of nodular cast iron short structure filter", "ramming riser process and application", "Application of the three principles of casting solidification in nodular cast iron castings", "turning waste into treasure: Discussion on the application of dust removal in casting molding sand", etc; Two technical invention patents have been applied: a new type of casting molding sand and a resin sand tamping riser tamping tool and process.

The publication of these papers and patent applications are the result of the active innovation of the foundry technicians in our branch, the proof that our branch has mastered some core foundry technologies, and the driving force for our branch to move forward to the front end of the domestic foundry field.

Yuanda valve group is a high, medium and low pressure valve manufacturing enterprise integrating R & D, production and sales. The company has established long-term and stable cooperative relations with various international well-known enterprises, and has successively established two overseas branches.

The products are exported to more than 40 countries and regions such as the United States, Russia, Japan, South Korea, Turkey, Germany, the United Kingdom, France, Italy, Brazil, Poland, Central Asia and West Asia, and are deeply trusted and praised by customers