A few days ago, good news came from Rongda Precision Casting Branch of Chaili Coal Mine of Shandong Energy Zao Mining Group. In the first nine months of this year, the company produced 4,833 tons of castings, an increase of 1,890 tons year-on-year, an increase of 64.22%, and sales of 3,990 tons increased 1,987 tons year-on-year. An increase of 99.25%, casting production and sales reached a record high.
Since this year, Rongda Precision Casting Branch has taken the opportunity of the integration of non-coal industries of Shandong Energy Group and Zaopeng Mining Group to insist on making precision castings more refined and excellent, following the development idea of ”standardization and orderliness, growth and strengthening, management improvement, and key breakthroughs” , concentrate on tackling the foundry industry. They insist on being customer demand-oriented, focusing on reducing product scrap rates and improving yield rates, constantly exploring internal potential, improving casting process technology, continuously extending the industrial chain, and promoting the implementation of precision casting projects.
“In the industrial field, castings are important basic components, and their quality and performance directly affect the quality and reliability of the entire product.” Kang Mingyu, general manager of Rongda Company, said, “We are seizing the important step in the development of the country's high-end equipment manufacturing industry. Opportunities, cultivate the production of machine tools, agricultural machinery castings, etc. as pillar industries, continuously optimize the industrial layout, and improve the cluster supporting system. It has now become an important R&D, production, processing and manufacturing base for merchants such as Shandong Weifang, Jiangsu Boshang, and Xingtai Zhongwei. The current casting market There are more than 20 stores across the country, and the regional brand influence and customer awareness are constantly increasing.”
The foundry market is picking up, and the two production lines of the steel casting workshop and the casting iron workshop are in full swing, and the workers are busy rushing to make production orders. The cast iron workshop works overtime to catch up with the order production tasks of Tengzhou Zhengjie, Jianha and other companies. The cast steel workshop's key customers Weifang Great Industry and Trade and Weifang Yingda Company have repeatedly added production orders. The production schedule of each production line of the Foundry Branch is full.
In order to ensure that the high-yield goal is fully achieved, the foundry branch closely focused on the goal of turning around losses and escaping difficulties, and urgently expanded from the previous single shift and single production line to two shifts and two production lines, actively seizing market opportunities. At the same time, we actively strive for the policy of conducting salary assessment based on production volume, fully mobilizing employees' enthusiasm for production, stimulating employees' creativity, and achieving various business goals of high-yield months with high quality and efficiency.
In front of the intermediate frequency furnace in the iron casting workshop, caster Ni Xiangxiang, wearing tight protective clothing, is adding recycled materials into the red furnace. At this time, the boiling molten iron reached about 1000°C, and the temperature of the working area around him also exceeded 60°C. Ni Xiangxiang stood less than two meters away from the furnace, flipping the crowbar in his hand, and prying the stuck recycled materials to the furnace table below. As the recycled materials fell, sparks suddenly flew out on the furnace table. At this time, Ni Xiangxiang's soaked work clothes clung to his body. This was their normal working condition.
“In terms of casting technology, we use a variety of advanced casting methods, such as sand casting, investment casting, etc. Each casting method has its unique advantages and scope of application, and can meet different customers’ requirements for casting performance and structure. Jin Xianhu, technician of the Casting Branch, said, “Sand casting like this is suitable for producing large, complex-shaped castings, while investment casting is suitable for producing small castings with high precision and high surface quality requirements.”
The advanced medium frequency electric furnace can accurately control the temperature and composition of the molten metal to ensure the purity and uniformity of the molten metal. High-precision mold manufacturing equipment can customize molds of various complex shapes according to customer needs to ensure the dimensional accuracy and surface quality of castings.
During the production process, each process is equipped with professional quality inspection personnel to strictly inspect and monitor the products. Once problems are discovered, measures will be taken immediately to make corrections to ensure that unqualified products do not flow into the next process. At the same time, by continuously optimizing process parameters and improving production processes, production efficiency and product quality are improved, and production costs are reduced.
“Turn over the mold and let me measure the side dimensions.” said Wang Lin, technical acceptance officer of the production department. Inspecting the mold against the drawings is an indispensable process for the acceptance work, and it is also the first quality check for the production of castings. Knowing the importance of his work, Wang Lin gives his best every time when inspecting castings and never dares to slack off. She often says: “Quality is the fundamental guarantee for the company's long-term development. I will never let molds with substandard quality enter our production line!”
Boxes of completed sandboxes in the steel casting workshop move with the rhythm of the automatic line, blowing sand, removing filter mesh, digging gates, and making marks. Employees are meticulously checking product quality at their respective jobs. Modeling worker Man Xia seriously and carefully conducts a final inspection of the core under the casting to ensure that the quality of the molding process is passed.
“By improving product quality and continuously releasing production capacity, casting output has also achieved new breakthroughs. At present, our casting products have been widely used in automobiles, agricultural vehicles, machine tools and other fields, and have won unanimous praise and trust from customers.” Chaili Coal Mine Chairman Yang Ming said, “In the next step, we will continue to optimize the allocation of casting resources, extend the second-phase casting production line, improve production efficiency, continue to innovate and forge ahead, provide customers with higher-quality casting products and services, and promote the development of the non-coal industry of Shandong Energy Group Make greater contributions.”
(Popular News·Qilu One Point Correspondent Liu Guangxian, Ren Ping and Meng Qi)