Organizing Each Courses’ Constituent Plates
We can act in a number of ways to define each shell.
Defining Each Shell as a Part
In PVManage software, all the three ways are devised and you can choose among them according to your taste. However, as the software designer, I present to you the best way. If you enter each shell as a part, you have chosen the best and the fastest method, provided that you consider each part as a shell when its diameter, thickness, and material are all the same. In other words, if your given shell has the same diameter, thickness, and material – regardless of its length- present it as a part in the software. The software will automatically provide you with its constituent parts!
If you intend to enter data of a shell with an internal diameter of 3,820, a thickness of 32, and a length of 15,200 millimeters – similar to the following figure – and you plan to use plates (courses) as width as 1,500 millimeters in its construction, present it as a part. Further explanations will be provided regarding the arrangement of its plates.
Fig. 35 – (A Shell Presented as a Part According to Its Structure)
As soon as you enter data of a Channel, Shell or Boot into the software (or you edit their former data), you must decide with respect to the status of its constituent plates in case this part is made of plate. Therefore, you will encounter a message dealing with the arrangement of its constituent plates.
Fig. 36 – (Message Dealing with Arrangement of Shell’s Constituent Plates)
If you choose “Yes,” the software employs its logic and based on the dimensions of the standard plate specified by you, manages to calculate the required plates to construct this Shell.
Fig. 37 – (Menu for Providing the List of Your Shell’s Constituent Plates Automatically)
Since you have chosen “Yes,” the software transfers Shell data in a manner unchangeable by you and you can only specify dimensions of the standard plate as well as the minimum distance between the two consecutive weld lines.
Dimensions of plates in use are standardly as follows:
6,000 x 1,250 9,000 x 1,250 12,000 x 1,250
6,000 x 1,500 9,000 x 1,500 12,000 x 1,500
6,000 x 2,000 9,000 x 2,000 12,000 x 2,000
6,000 x 2,500 9,000 x 2,500 12,000 x 2,500
In some circumstances, e.g. for certain materials and thicknesses as well as some factories’ products, there might be produced plates with dimensions other than the aforementioned ones. However, it is quite conclusive that the dimensions mentioned above can be regarded as standard ones in over 90% of cases. After designating the aforementioned data and clicking on “Calculate,” calculations will be conducted and a result similar to what you can see in the following figure will be offered to you.
If you intend to save these data, you are required to click on “Transfer to This Item” and exit the menu above.
Fig. 38 – (Automatic List of a Certain Shell’s Constituent Plates)
If you choose “No” in response to the message in Figure-36, you have personally taken the responsibility of plate arrangement of a certain Shell and you intend to define a Shell’s constituent plates manually. In that case, it is highly essential to point out two main points.
First: This is you who must adhere to the plates’ longitude. The software can neither know your mental plot nor analyze it by any means.
Second: in cases when you use a plate with certain unconventional dimensions (for instance a plate as wide as 3,500 millimeters), you have to introduce it to the software as Stock while preparing two-dimensional Nesting.
An image of the related menu can be seen in the following figure.
It is noteworthy that until the required area is supplied for constructing a certain Shell, the software will not save your defined parts. To put it in other words, your defined parts will be accepted provided that you supply the required area.
Fig. 39 – (Manual List of a Certain Shell’s Constituent Plates)