First, the import of O type circle (O-ring) what are the characteristics
1) the structure is simple, easy to manufacture, easy to install.
2) the friction resistance is small, the movement, the static friction is quite, can eliminate the low speed, the low pressure movement "the crawl" phenomenon.
3) good sealing performance and long service life, under some conditions, can be used in the same life as the sealing body.
4) can be resistant to a variety of solvents, such as water, steam, oil, acid and alkali, gas, alcohol, etc..
5) good abrasion resistance, with automatic compensation function of elastic O-ring sealing surface wear.
6) has a good self lubrication performance, can be used for oil free lubrication seal.
7) working pressure in general,: 0-35MPa; speed: 15m/s; working temperature: -55-250 degrees.
Two, American Standard, Japanese standard, GB fluorine rubber O-ring specifications all imported
Taiwan Asahi Meike seal (XOK), always adhere to the "quality first, customer satisfaction 100%" principle and set up factories, and continuously improve product quality, improve product varieties to meet the changing needs of the market. The main products: import O-ring, EPDM three EPDM seals, imported oil seal, O ring, sealing ring, DuPont VITON fluorine rubber O-ring, high-temperature seal, VA seal, U ring, O-ring, O-ring seal price, specifications, fluorine rubber seal size. Black NBR nitrile rubber O - ring, seal material, seal manufacturer, silicone O-ring, Y ring, PU ring, Gelailai hole ring, shaft stepseal, UHS ring, USH ring, LBH ring, UPH ring, square circle etc..
American Standard AS 568 A
Number x W D serial number x W D D serial number x W code D x W D x W
0.74x1.02 AS035 56.87x1.78 AS120 AS001 25.07x2.62 AS154 94.92x2.62 AS210 18.64x2.62
1.07x1.27 AS036 60.05x1.78 AS121 AS002 26.64x2.62 AS155 101.27x2.62 AS211 20.22x2.62
1.42x1.52 AS037 63.22x1.78 AS122 AS003 28.24x2.62 AS156 107.62x2.62 AS212 21.82x3.53
1.78x1.78 AS038 66.40x1.78 AS123 AS004 29.82x2.62 AS157 113.97x2.62 AS213 23.39x3.53
2.57x1.78 AS039 69.57x1.78 AS124 AS005 31.42x2.62 AS158 120.32x2.62 AS214 24.99x3.53
2.90x1.78 AS040 72.75x1.78 AS125 AS006 32.99x2.62 AS159 126.67x2.62 AS215 26.57x3.53
3.68x1.78 AS041 75.92x1.78 AS126 AS007 34.59x2.62 AS160 133.02x2.62 AS216 28.17x3.53
4.47x1.78 AS042 82.27x1.78 AS127 AS008 39.17x2.62 AS161 139.37x2.62 AS217 29.74x3.53
5.28x1.78 AS043 88.62x1.78 AS128 AS009 37.77x2.62 AS162 145.72x2.62 AS218 31.34x3.53
6.07x1.78 AS044 94.97x1.78 AS129 AS010 39.34x2.62 AS163 152.07x2.62 AS219 32.92x3.53
Japanese standard B JIS 2401
Serial number x W D Series D x W D serial number x W D x W D x W
2.8x1.9 P35 34.7x3.5 P102 P3 101.6x5.7 P250 249.5x8.4 G90 89.4x3.1
3.8x1.9 P35.5 35.2x3.5 P105 P4 104.6x5.7 P255 254.5x8.4 G95 94.4x3.1
4.8x1.9 P36 35.7x3.5 P110 P5 109.6x5.7 P260 259.5x8.4 G100 99.4x3.1
5.8x1.9 P38 37.7x3.5 P112 P6 111.6x5.7 P265 264.5x8.4 G105 104.4x3.1
6.8x1.9 P39 38.7x3.5 P115 P7 114.6x5.7 P270 269.5x8.4 G110 109.4x3.1
7.8x1.9 P40 39.7x3.5 P120 P8 119.6x5.7 P280 279.5x8.4 G115 114.4x3.1
8.8x1.9 P41 40.7x3.5 P125 P9 124.6x5.7 P285 284.5x8.4 G120 119.4x3.1
9.8x1.9 P42 P10 41.7P130 129.6x5.7 P290 289.5x8.4 G125 x3.5 124.4x3.1
Chinese standard 3452.1-82 GB
Number x W D serial number x W D D serial number x W code D x W D x W
1.8x1.8 GB0035 16x1.8 GB0069 GB001 8.75x2.65 GB00103 42.5x2.65 GB00137 170x2.65
2x1.8 GB0036 17x1.8 GB0070 GB002 9x2.65 GB00104 43.7x2.65 GB00138 180x2.65
2.24x1.8 GB0037 18x1.8 GB0071 GB003 9.5x2.65 GB00105 45x2.65 GB00139 18x3.55
2.5x1.8 GB0038 19x1.8 GB0072 GB004 10x2.65 GB00106 46.2x2.65 GB00140 19x3.55
2.8x1.8 GB0039 20x1.8 GB0073 GB005 10.6x2.65 GB00107 47.5x2.65 GB00141 20x3.55
3.15x1.8 GB0040 21.2x1.8 GB0074 GB006 11.2x2.65 GB00108 48.7x2.65 GB00142 21.2x3.55
3.55x1.8 GB0041 22.4x1.8 GB0075 GB007 11.8x2.65 GB00109 50x2.65 GB00143 22.4x3.55
3.75x1.8 GB0042 23.6x1.8 GB0076 GB008 12.5x2.65 GB00110 51.5x2.65 GB00144 23.6x3.55
GB009 4 GB0043 25x1.8 X1.8 GB0077 13.2x2.65 GB00111 53x2.65 GB00145 25x3.55
4.5x1.8 GB0044 25.8x1.8 GB0078 GB0010 14x2.65 GB00112 54.5x2.65 GB00146 25.8x3.55
Due to the length of the limited, can not be enumerated, such as the need for further understanding, welcome to contact us.
Three, rubber O ring after curing treatment work
After curing the sealing ring can not immediately become a qualified, can be distributed to the customer's products, but also through a number of other corresponding work to be completed.
1) to meet the requirements of certain characteristics of product performance, the need for the surface of the product through a special process, etc.;
2) in order to ensure the stability and performance requirements of some products, the corresponding products should be subjected to the heat drawing cooling and curing;
3) in order to increase the product appearance beauty, improve the sealing performance, the need to repair the edge of the product.
An inevitable process of flash or flash in the product forming, it is a delay in the curing product outflow mold parting surface and other parts, the formation of edge glue overflow.
1/ hand trimming: This is the earliest use of a trimming method. In this way, the level of skilled labor is higher, and the product quality is also different from person to person. As is the use of scissors, knives and other tools to remove the glue, there will often be scratch, scratch and deformation of the situation. In a word, the quality of product trimming is not stable.
2/ mechanical repair: is a kind of high efficiency, high quality of a trimming method.
A, low temperature blasting trimming
The trimming method of this kind of process is generally required for the product with high precision. Is the product with liquid nitrogen or dry ice is rapidly cooled to a temperature below the high-speed spray and brittle, metal or plastic projectile projectile will fly side break off, finish trimming.
B, mechanical grinding trimming
This trimming method is of low accuracy and is usually used for the rubber O ring with inner hole and outer circle. The cutting tool for grinding particles of certain thickness, so the surface of the product may be with residual sand effect
C, low temperature drum trimming
It is the friction between the impact force generated by the rotation of the drum and the products, has been frozen to brittle temperature following flash products break and fall off, the drum shape is octagonal, in order to increase the product impact force in the drum, the drum speed should be moderate, people can improve the efficiency of abrasives.
D, cutting and trimming punching machine
This method is suitable for the product and its glue edge can be placed on the model products on the die or punching bottom plate. Punching and cutting is divided into cold and hot.
F, low temperature vibration trimming
Also known as the vibration of frozen trimming, product spiral vibration in the annular sealing box, there are strong impact between products and between products and abrasives, resulting in frozen brittle broken edges. Low temperature vibration trimming trimming drum than low temperature, low failure rate of products, the production efficiency is relatively high.
G, mechanical cutting trimming
It is suitable for trimming of large size products, and the cutting tool is used.
H, low temperature brush grinding trimming
It is the use of two horizontal axis of the rotation of the nylon brush will freeze the rubber O ring of the brush to remove the edge