A new variation of the old coordinate industrial symbols of the development period

In an old factory in the western suburbs of Zhengzhou, the road is covered with fallen leaves. The sun shines from the gap between the tall French sycamore trees. Under the cover of huge blast furnaces and workshops, the German architecture of the 1950s stands quietly. . History seems to have been fixed in this long-established factory: the curved sawtooth factory roof, the thick heat pipe network, the tall chimney...

Here is the country's largest grinding wheel factory, which was assisted by the then Democratic Germany during the "First Five-Year Plan" period, and the former "Second Grinding Wheel Factory" in China (now Baige Group Abrasives Co., Ltd.) - the recent Zhengzhou Divine Comedy The “two sands” of “four factories take a walk, two sands turn one turn” refers to the area nearby, which is enough to see the status of “two sands” as an important landmark in the city.

In the early days of the founding of New China, large-scale industrial construction was required. No grinding wheel would not work. Abrasives are known as the "teeth" of the machinery industry. Without it, aircraft cannons can't be made, and car tractors can't do it. It's a small pen nib. It should also be opened with a thinner wheel than paper. At that time, there was only one grinding wheel factory in China, namely the Shenyang Sujiatun Grinding Wheel Factory (later renamed the “First Grinding Wheel Factory”). At the beginning of the "First Five-Year Plan", the state decided to launch a large-scale grinding wheel factory. In May 1953, the preparatory office was established in Wuhan. After a few months, the preparatory office was attracted because of the large reserves of bauxite mines in Gongxian County (now Gongyi City). No. 56, Dunhuang Road, Zhengzhou City. The name of the bauxite is “soil”, which is actually a kind of stone. It is one of the most important raw materials for the production of abrasive materials. The construction of the factory near the mine source can undoubtedly greatly reduce the transportation cost. At that time, the technical foundation was weak and did not have the conditions for constructing a large-scale grinding wheel factory independently. Therefore, “Two Sands” was built by the then Democratic Germany (referred to as East Germany). The plant was huge in investment and did not belong to the famous "156 Soviet aid projects" at that time, and was dubbed the "157th project." At first, it was called 4057 factory, and later it was designated as the “second grinding wheel factory” by China Ministry of Machinery Industry.

During the construction period, 67 experts from Germany and their 48 family members lived in Zhengzhou for a long time. They were highly treated and built an expert building and repaired swimming pools and tennis courts. The Chinese who used to live a hard time and are still suffering have quickly discovered that the East Germans are different: the factory buildings and office buildings they designed are “super-luxury”! At that time, China was advocating “diligence and thrift”. The factory believed that the construction standards designed by Dongde people were too high. One floor building, no load and no vibration, did not need to go down the pillar a few meters deep... But Dongde people insisted that the grinding wheel factory The war will become the primary target of destruction. Hitler attacked the Soviet Union. The first bombing targets were the grinding wheel factory: the grinding wheel was the "teeth" of the machinery industry, and the destruction of the grinding wheel factory was a major blow to the military industry. The result of the debate was that the East Germans prevailed. The plant, production process and product quality of “Second Sand” were ultimately based on the East German standard. Later, this enterprise could become the “leading boss” of the Chinese grinding wheel industry, and it may not be related to such a factory standard.

In a fairly long period of the last century, “Two Sands” occupied the first place in Zhengzhou and even in Henan. It is the country's most invested project in Zhengzhou, with an investment of 150 million yuan, which is almost equivalent to the total investment of 5 national cotton plants; the factory area is the largest, 1 square kilometer square; the highest chimney, up to 64 meters. In fact, not only in Zhengzhou, but also in the country is "very cattle", it is the country's largest grinding wheel factory, and the world's second largest grinding wheel factory. The well-designed workshops in the factory area, the exquisite façade treatment, and the overhead bridges connected between the workshops show the style of the original Dongde industrial buildings in the last century; the 27th factory building with fine design, well-preserved and still in use today. It adopts assembled reinforced concrete structure and single-layer curved sawtooth roof. It has obvious architectural styles and covers an area of ​​100 mu. The building area is 74,000 square meters. It is the largest factory of Ersha. It is also rare in China. Enter Zhengzhou City's list of outstanding modern and modern buildings.

“The importance of industrial heritage is based on two main values. One is the testimony of the field of work and daily life as a period of human social change. Another value is as a document archive that helps us better understand that people at this stage are How to work and live. The proper protection and utilization of these excellent industrial relics will save Zhengzhou's industrialization experience. In the future, for many citizens, the industrial world is almost as far away as any historical period. Industrial relics of scale, rich industrial buildings such as factories and warehouses, unique industrial structures such as water towers, boilers, belt corridors, etc., which are well preserved and easy to be redesigned and reused. They are excellent resources for cultural and creative industries. Jiang Shan, an artist who came to take photos of the factory, told reporters.

It is understood that the Zhengzhou Municipal Party Committee and the Municipal Government have expressed their intention to carry out industrial heritage protection and cultural and creative park construction in the Baiyuan Abrasives Co., Ltd. area of ​​Zhongyuan District. In the future, people can see here: the old industrial factory area full of memories of the times has gradually become the cultural and creative industrial park of Zhengzhou City, and has become a gathering place for the media, advertising, art, animation, film and television industries.

Condensed Aluminum Phosphate

PRODUCT NAME:Aluminum Phosphate, Aluminum Metaphosphate ,Potassium Silicate Curing Agent

PRODUCT TYPE:High Temperature Materials, Binder

PRODUCT APPEARANCE:White Powder

CHEMICAL CLASS:AlPO4

CAS No.:7784-30-7.

PRODUCT APPLICATION:It can solidify potassium silicate (other name: potassium water glass) at room temperature. It is mostly used as binder and curing agent in the production of Hi-Temp Refractory Materials for kiln. It also serves as fluxing agent in the production of special glass, as binder in fabrication of ceramics or tooth, and so on.

Aluminum phosphate adhesive has excellent heat-resistance and weather-resistance, not only a widely used adhesive in refractories, it`s also an importantingredient in inorganic coatings(such as powder coating). It also used in the production of siliceous,high-aluminum,magnesian,siliconcarbide and oxides of concrete.

TECHNICAL DATA

Test Items

Technical Parameters

Appearance

White Powder

The PH Value

2-4

Residue on sieve(45um)%

≤0.5%

P2O5   %

60-70

Al2O3  %

25-35

STANDARD PACKAGING:  25kg/bag, Plastic-lined and plastic-coated woven bags or Composite paper bags.

TRANSPORT AND STORAGE

Protect against weathering and exposed under the blazing sun. Store in a cool,dry place and avoid extreme fluctuations in temperature.

Special conditions for opened packaging: Close bags after use to prevent the absorption of moisture and contamination.

High Temperature Resistant Materials Series

High Temperature Resistant Materials Series, Aluminium Tripolyphosphate Hydrogen, Fireproofing Material Condensed Aluminum Phosphate

shijiazhuang city xinsheng chemical co.,ltd , https://www.xsphos.com