The specifications of commonly used seals are mainly made of rubber. as Dong Sheng Seal said, NR rubber (native rubber) is a NR latex collected from rubber trees, the collected latex is solidified and dried to form a solid body. NR rubber is a natural polymer compound mainly composed of polyseem. its rubber hydrocarbon (polyseem) content is more than 90%, and it also contains a small amount of protein, fatty acids, sugar and ash.
First, the physical properties of NR rubber seals have high elastic properties at normal temperature, slightly plastic, with very good mechanical strength and small lag loss, the heat is low during multiple deformation, so its bending resistance is also very good, and because it is non-polar rubber, the electrical insulation performance is good.
Two, rubber, plastic, fiber and NR rubber (native rubber) seal material used for the three synthetic seals, with high scalability and good elasticity. The seal material is characterized by a very small elastic modulus and a high elongation.
Third, secondly, it has a good resistance to air permeability and resistance to various chemical media and electrical insulation.Some special synthetic rubber seals have better oil resistance and temperature resistance, and can resist the swelling of fat oil, lubricating oil, hydraulic oil, fuel oil and solvent oil.
4. the rubber seal is also resistant to various bending and bending deformation, because the lag loss is small.The third characteristic of rubber is that it can be used, blended and composite with a variety of materials, which is modified to achieve good comprehensive performance.
If you have plenty of time, you can learn how to take care of custom rubber seals. Also, invest in the right custom rubber seals rubber seal.
Guangdong DSH Seals Technology Co., Ltd’s purpose is to create superior value for our customers, employees, communities and investors through the production, conversion, delivery and sale of energy and energy services.
Increasing consumer awareness and rising concern about improving custom rubber seals are driving the market of products.
In August 2018, our Guangdong Dongsheng Sealing Technology Co., Ltd. (Hunan Branch) was formally established. We also participated in the first International Engineering Machinery Parts Exhibition held in Guangzhou.
In November 2018, we participated in the Asia International Power Transmission and Control Technology (PTC Exhibition).
In November 2018, we participated in the 2018 Bauma China Shanghai BMW Exhibition, as well as China International Construction Machinery, Building Materials Machinery, Mining Machinery, Engineering Vehicles and Equipment Expo.
We obtained the ATF automotive product international quality system certification.
We applied for some independent research and development patents.
In April 2017, our silicone products passed the quality supervision food inspection of Guangdong Province and obtained the certificate.
In July 2017, Dongpu Guangzhou Branch was established.
In August 2017, the official website (www.dshseals.cn) of Guangzhou Branch was officially launched.
In August 2017, a large-scale sulfurizing machine with a thickness of 1800mm and 1800mm and weight of 630 tons was successfully installed and commissioned.
In September 2017, the official website (www.dslxb.com.) of Donglili Luggage was officially launched.
In January 2017, we applied for the invention and the utility model patent for the “Deep Sea Robot Seal”.
In December 2017, we won the first CCTV “Golden Horse Leader” Enterprise Development Documentary.
In March 2016, we participated in the Western China International Equipment Manufacturing Expo.
In May 2016, we participated in the US OC Oil and Gas Exhibition.
In June 2016, we released a series of new products, and the phenolic resin guide tape was successfully developed.
In August 2016, we successfully obtained the invention patent certificate for pharmaceutical equipment sealing ring.
In September 2016, we successfully obtained the invention patent certificate for the alloy seal.
In October 2016, Dongguan Dongpu Travel Goods Co., Ltd. was established.
In December 2016, our new modified seals passed the RoHS certification.
In April 2015, the product testing center was officially put into operation.
In July 2015, the new modified sealing products obtained the inspection certificate of Guangzhou Machinery Industry Auto Parts Product Quality Supervision and Inspection Center.
In September 2015, the brand promotion and network department were formally established. We gained the International Quality System Certification.
In August 2013, the food-grade series sealing products passed the quality supervision food inspection of Guangdong Province and obtained the certificate of excellent performance.
In October 2013, the Foreign Trade Department was established.
In January 2013, the automatic product printing press was successfully put into operation with a daily output of 5,000 pieces per day.