curing
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This post was last edited by fangfeizmh on 2010-6-3 at 15:11. If these silicone rubber compounds are to be used at temperatures above 150℃ (it’s 150℃ here, not 100℃; there was a mistake in the original text), the cured product must be properly conditioned before use. After curing at room temperature for 1–3 days, a typical treatment procedure involves 8 hours at a temperature of 25℃, with increments of 100℃ between each temperature stage up to the actual operating temperature. For larger parts or those with very deep sections, longer treatment times at each temperature will be required. At each temperature, curing of larger parts or deeper areas will take longer. Everyone, take a look – is the translation accurate?
From 100 degrees to the operating temperature, with a temperature increase of 25 degrees; it’s not clear whether this refers to the temperature increase per hour
Personal opinion: To raise the temperature from 100°C to the operating temperature, the normal procedure is to increase the temperature by 25°C each time, which takes 8 hours.
A typical program would be eight hours at 25℃ intervals from 100℃ to the service temperature. The usual approach is to raise the temperature from 100℃ to the operating temperature, with 8 hours required for each increase of 25℃.
Curing at room temperature for 1-3 days indicates a temperature drop! From 100°C to the operating temperature, there are several intervals of 25°C each; 8 hours are required for each interval. Total time = 8 x number of intervals!
If RTV silicone-based organic resin rubber sealant is used at 150°C (302°F), curing of larger components or areas located deeper will take longer at each temperature. It indicates that there are many temperature values for different resin and rubber sealants; for example, 170 and 190. At these two temperatures, curing of larger components or those located in deeper areas will take longer. Longer time = curing time greater than 8 hours! It must be a temperature drop; only by cooling down can curing occur. The text mentions that under normal conditions, for every 25°C drop, at least 8 hours are required, and it is further stated that curing of larger components or those located deeper will take even longer. Longer time = curing time greater than 8 hours!
If these silicone rubber compounds are to be used at temperatures above 100℃, the cured product must be properly conditioned before use. After curing at room temperature for 1–3 days, a typical curing process involves eight hours at temperatures ranging from 25℃ up to the operating temperature. Longer exposure times at each temperature are required for larger parts or those with very deep sections. As indicated by the two highlighted areas, it seems that heating is necessary. First, cure at room temperature for 1 to 3 days, then increase the temperature in increments of 25 degrees from 100 degrees to the operating temperature, holding each temperature for 8 hours. The degree of curing in the range from room temperature to 100 degrees is not mentioned.
If these silicone rubber compounds are to be used at temperatures above 150℃,......From this sentence, I think it refers to the time required for the temperature to rise, that is, from 100℃ to 150℃ (or above 150℃).
Overall, it’s an increase in temperature rather than a decrease! ! With the analysis from just now, the meaning of the sentence is very clear! If RTV silicone-based organic resin rubber sealant is used at 150°C (302°F), the cured product must be properly treated before use: it first cures at room temperature over 1–3 days, and then, at temperatures above 100°C, the typical curing procedure involves 8 hours at a temperature of 100°C (212°F), with an intermediate temperature of 25°C (45°F) between this temperature and the operating temperature. At each temperature, curing of larger parts or deeper areas will take longer. Red makes it easier to understand! !
This post was last edited by tigerli358_Can on 2010-6-5 02:45. Here, “cure” is translated as “vulcanization” (using peroxides as vulcanizing agents), and “conditioning” is translated as “aging,” which is in line with the conventional terminology used in silicone rubber processing*. Reason: “Aging” is a term commonly used in the rubber processing and catalyst industries. . . . . When used at higher temperatures. . . . After room-temperature vulcanization over 1 to 3 days, silicone rubber products should be subjected to aging treatment. Its aging process is as follows: starting from 100°C, with temperature intervals of 25°C each, and the material is kept at each temperature for 8 hours until the operating temperature is reached.
The cured product must be properly conditioned...... I believe that \"conditioned\" here refers to proper temperature control, meaning the use of an air conditioner.