Non-Smoking Connector Pipe
A process for producing a fume free connector pipe is disclosed. The connector pipe is placed in a curing oven at a start temperature, the oven having a convective air CFM and an intake/exhaust air CFM. The oven temperature is increased over an increase time period to a hold temperature and the connector pipe is heated at the hold temperature for a hold time period then removed from the curing oven after a total amount of time, the total amount of time being the increase time period plus the hold time period.
1 . A non-smoking connector pipe manufacturing process comprising the steps of:
fabricating a connector pipe;
applying a coating to the connector pipe;
completing a first, room temperature, cure;
placing the connector pipe in a curing oven for a second cure at a start temperature, the oven having a convective air CFM and an intake/exhaust air CFM;
increasing the oven temperature over an increase time period to a hold temperature;
heating the connector pipe at the hold temperature for a hold time period; and
removing the connector pipe from the curing oven after a total heating time, the total heating time consisting of the increase time period plus the hold time period.
2 . The process of claim 1 wherein the second cure is about 0.15 lbs. per minute or less.
3 . The process of claim 1 wherein the total heating time is about thirty minutes or less.
4 . The process of claim 1 wherein the connector pipe is introduced into the oven at a start temperature of about 400 degrees F.; the hold temperature is about 450 degrees F.; the increase time period is about fifteen minutes to about a seventeen minutes; the hold time period is about thirteen to about fifteen minutes; the convective air CFM is about 125 CFM and intake/exhaust air CFM is about 75 CFM.
5 . The process of claim 4 wherein the increase time period is about fifteen minutes and the hold time period is about fifteen minutes.
6 . The process of claim 4 wherein the increase time period is about seventeen minutes and the hold time period is about thirteen minutes.
7 . The process of claim 1 wherein the total heating time is about twenty-five minutes or less.
8 . The process of claim 7 wherein the connector pipe is introduced into the oven at a start temperature of about 400 degrees F.; the hold temperature is about 450 degrees F.; the increase time period is about fifteen minutes; the hold time period is about ten minutes; the convective air CFM is about 210 CFM and intake/exhaust air CFM is about 75 CFM.
9 . The process of claim 1 wherein the total heating time is about twenty minutes or less.
10 . The process of claim 1 wherein the connector pipe is introduced into the oven at a start temperature of about 350 degrees F.; the hold temperature is about 415 degrees F.; the increase time period is about ten minutes to about eleven minutes; the hold time period is about nine to about ten minutes; the convective air CFM is about 210 CFM and intake/exhaust air CFM is about 75 CFM.
11 . The process of claim 10 wherein the increase time period is about eleven minutes and the hold time period is about nine minutes.
12 . The process of claim 10 wherein the increase time period is about ten minutes and the hold time period is about ten minutes.
13 . A non-smoking connector pipe curing process comprising the steps of:
completing a first, room temperature, cure;
placing the connector pipe in a curing oven for a second cure at a start temperature, the oven having a convective air CFM and an intake/exhaust air CFM;
increasing the oven temperature over an increase time period to a hold temperature;
heating the connector pipe at the hold temperature for a hold time period; and
removing the connector pipe from the curing oven after a total amount of time, the total amount of time consisting of the increase time period plus the hold time period.
14 . The process of claim 13 wherein the second cure is about 0.15 lbs. per minute or less.
15 . The process of claim 13 wherein the total heating time is about thirty minutes or less.
16 . The process of claim 13 wherein the connector pipe is introduced into the oven at a start temperature of about 400 degrees F.; the hold temperature is about 450 degrees F.; the increase time period is about fifteen minutes to about a seventeen minutes; the hold time period is about thirteen to about fifteen minutes; the convective air CFM is about 125 CFM and intake/exhaust air CFM is about 75 CFM.
17 . The process of claim 16 wherein the increase time period is about fifteen minutes and the hold time period is about fifteen minutes.
18 . The process of claim 16 wherein the increase time period is about seventeen minutes and the hold time period is about thirteen minutes.
19 . The process of claim 13 wherein the total heating time is about twenty-five minutes or less.
20 . The process of claim 19 wherein the connector pipe is introduced into the oven at a start temperature of about 400 degrees F.; the hold temperature is about 450 degrees F.; the increase time period is about fifteen minutes; the hold time period is about ten minutes; the convective air CFM is about 210 CFM and intake/exhaust air CFM is about 75 CFM.
21 . The process of claim 13 wherein the total heating time is about twenty minutes or less.
22 . The process of claim 13 wherein the connector pipe is introduced into the oven at a start temperature of about 350 degrees F.; the hold temperature is about 415 degrees F.; the increase time period is about ten minutes to about eleven minutes; the hold time period is about nine to about ten minutes; the convective air CFM is about 210 CFM and intake/exhaust air CFM is about 75 CFM.
23 . The process of claim 22 wherein the increase time period is about eleven minutes and the hold time period is about nine minutes.
24 . The process of claim 22 wherein the increase time period is about ten minutes and the hold time period is about ten minutes.
25 . A non-smoking connector pipe cure comprising:
a first, room temperature, cure; and
a second cure comprising
placing the connector pipe in a curing oven at a start temperature, the oven having a convective air CFM and an intake/exhaust air CFM;
increasing the oven temperature over an increase time period to a hold temperature;
heating the connector pipe at the hold temperature for a hold time period; and
removing the connector pipe from the curing oven after a total heating time, the total heating time consisting of the increase time period plus the hold time period.
26 . The connector pipe cure of claim 25 wherein the second cure is about 0.15 lbs. per minute or less.
27 . The connector pipe cure of claim 25 wherein the connector pipe is introduced into the oven at a start temperature of about 350 degrees F.; the hold temperature is about 415 degrees F.; the increase time period is about ten minutes to about eleven minutes; the hold time period is about nine to about ten minutes; the convective air CFM is about 210 CFM and intake/exhaust air CFM is about 75 CFM.
28 . The connector pipe cure of claim 27 wherein the increase time period is about eleven minutes and the hold time period is about nine minutes.
29 . The connector pipe cure of claim 27 wherein the increase time period is about ten minutes and the hold time period is about ten minutes.