??Use large??Use large size of the rubber O-ring to pay attention to those details

??Use large size of the rubber O-ring to pay attention to the following technical details

??(1) large-sized rubber O-ring to calculate the pre-stretch ratio (piston seal) or pre-compression ratio (rod seal), reduction of area;

??(2) Further note that large-sized rubber O-ring sealed and liquid compatibility, taking into account the seal swelling;

??(3) also consider the thermal expansion of large-sized rubber O-ring.

??Such as piston seal: seal groove diameter is at 780, then you order a large-sized rubber O-ring diameter (including tolerances) less than or equal to at least 780; if it is rod seal: If the groove diameter is at 780, then, so you ordered the seal outside diameter (including tolerances) greater than or equal to at least 780.

??Processing methods of large-sized rubber O-ring

??Large-sized rubber O-ring machining methods, mold design, die design using upper and lower elongated multi-cavity mold, closed mold removable ends to ensure high pressure curing, installation of upper and lower molds were heated adjustable temperature of 30 to 250 ? means installed at both ends of the upper and lower mold temperature of 30 to 250 ? adjustable cooling means; assuming the upper and lower mold temperature between 150 and 220 ?, the upper and lower dies dust detection processing and the mold temperature regulation; the non-rubber processing standard O-ring diameter needs preparation width and height to determine the strip, the strip into the rear of the upper and lower cavity of the mold clamping, the upper and lower dies two closed press vulcanization; vulcanized good strip remove the. Said upper and lower molds after vulcanization continue until the tape length to achieve the total length after docking in turn, until after the completion of the entire butt rubber O-ring trimming detection, in order to achieve large-sized non-standard rubber O-ring system. size of the rubber O-ring to pay attention to those details

??Use large size of the rubber O-ring to pay attention to the following technical details

??(1) large-sized rubber O-ring to calculate the pre-stretch ratio (piston seal) or pre-compression ratio (rod seal), reduction of area;

??(2) Further note that large-sized rubber O-ring sealed and liquid compatibility, taking into account the seal swelling;

??(3) also consider the thermal expansion of large-sized rubber O-ring.

??Such as piston seal: seal groove diameter is at 780, then you order a large-sized rubber O-ring diameter (including tolerances) less than or equal to at least 780; if it is rod seal: If the groove diameter is at 780, then, so you ordered the seal outside diameter (including tolerances) greater than or equal to at least 780.

??Processing methods of large-sized rubber O-ring

??Large-sized rubber O-ring machining methods, mold design, die design using upper and lower elongated multi-cavity mold, closed mold removable ends to ensure high pressure curing, installation of upper and lower molds were heated adjustable temperature of 30 to 250 ? means installed at both ends of the upper and lower mold temperature of 30 to 250 ? adjustable cooling means; assuming the upper and lower mold temperature between 150 and 220 ?, the upper and lower dies dust detection processing and the mold temperature regulation; the non-rubber processing standard O-ring diameter needs preparation width and height to determine the strip, the strip into the rear of the upper and lower cavity of the mold clamping, the upper and lower dies two closed press vulcanization; vulcanized good strip remove the. Said upper and lower molds after vulcanization continue until the tape length to achieve the total length after docking in turn, until after the completion of the entire butt rubber O-ring trimming detection, in order to achieve large-sized non-standard rubber O-ring system.