1. Method for installing a machine unit in an existing production line of a hot rolling mill, comprising the steps of:
prefabricating a machine foundation (1);
assembling the machine unit comprising the machine foundation (1) and a rolling stand mounted on the machine foundation on site next to the production line (4) of the hot rolling mill; and
inserting the machine unit into the production line (4) as a completely functional modular unit, wherein the step of assembling includes constructing the machine unit as a complete modular unit including the machine foundation (1), associated drive elements, control elements, fastening elements, as well as pipes, cables, and other pieces of equipment necessary for operation, wherein the preassembled installation is subjected to a preliminary test run on site before it is inserted into the production line (4).
2. Method according to claim 1, wherein the machine foundation (1) with the completely assembled and operationally ready rolling stand (2) is moved into place along at least two displacement tracks (5).
3. Method according to claim 2, wherein the displacement is carried out in steps alternating between a left displacement axis and a right displacement axis.
4. Method according to claim 2, wherein the machine foundation (1) to be displaced is raised; slideways are inserted between the machine foundation (1) and the displacement tracks (5); and the machine foundation (1) is displaced and then lowered after reaching its final position.
5. Method according to claim 4, wherein pairs of intercommunicating double presses are used to raise and lower the machine foundation (1).
6. Method according to claim 5, wherein the presses for raising the machine foundation (1) are supported on lifting pointslifting surfaces (9, 10, 11) embedded in the displacement tracks (5).
7. Method according to claim 5, wherein the presses for lowering the machine foundation (1) in the final position are supported on lifting pointslifting surfaces embedded in the displacement tracks (5).
8. Method according to claim 4, wherein the machine foundation (1) is horizontally aligned in the final position on the basis of reference marks on the rolling stand axes.
9. Method according to claim 4, wherein the machine foundation (1) is vertically aligned in the final position on the basis of reference marks.
10. Method according to claim 4, wherein the machine foundation (1) is finely adjusted around its transverse axis.
11. Method according to claim 1, wherein the foundations of a roll-changing area are at least partially constructed and installed as prefabricated reinforced concrete structures.
12. Method according to claim 1, wherein the machine foundations are partially or completely constructed as prefabricated reinforced concrete structural elements in the assembly area of the machine foundation (1) to be displaced, so that they can later be used as a base for new machine foundations.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of transmittingreceiving fax data through internet, the method comprising:
(a) receiving a request for authentication of transmittingreceiving data from a first fax system;
(b) generating a transmittingreceiving authentication information in response to the request for authentication;
(c) transmitting the transmittingreceiving authentication information to the first fax system and storing the transmittingreceiving authentication information into a transmittingreceiving fax data authentication database, wherein the first fax system transmits a fax data which is encrypted using the received transmittingreceiving fax data authentication information to a second fax system;
(d) receiving a request for authentication confirmation of transmittingreceiving fax data from the second fax system, wherein when the second fax system receives the fax data from the first fax system, the second fax system transmits the request for authentication confirmation of transmittingreceiving fax data comprising a header information of the fax data;
(e) extracting transmittingreceiving data authentication information corresponding to the header information of the fax data from the transmittingreceiving fax data authentication database in response to the request for authentication confirmation of transmittingreceiving fax data; and
(f) transmitting the transmittingreceiving data authentication information to the second fax system, which decrypts the fax data using the transmittingreceiving fax data authentication information.
2. A method of transmittingreceiving fax data through internet, the method comprising:
(a) receiving a request for authentication of transmittingreceiving fax data from a first fax system;
(b) generating a pair of authentication keys including a first authentication key and a second authentication key;
(c) transmitting the pair of authentication keys to the first fax system and storing the pair of authentication keys into a transmittingreceiving fax data authentication database, wherein the first fax system encrypts a fax data using the pair of authentication keys and transmits the encrypted fax data and the first authentication key to second fax system;
(d) receiving a request for authentication confirmation of transmittingreceiving fax data from the second fax system, wherein when the second fax system receives the encrypted fax data from the first fax system, the second fax system transmits the request for authentication confirmation of transmittingreceiving fax data including a header information of the encrypted fax data;
(e) extracting a second authentication key corresponding to the header information of the encrypted fax data from the transmittingreceiving fax authentication database in response to the request for authentication confirmation of transmittingreceiving fax data; and
(f) transmitting the second authentication key to the second fax system, which decrypts the fax data using the first and second authentication keys.
3. The method of claim 1, further comprising:
(g) receiving a request for subscription from the first fax system; and
(h) storing a subscription information of the first fax system into a subscription information database in response to the request for subscription.
4. The method of claim 1, further comprising:
(g) receiving a request for fax transmitting proxy service from the first fax system; and
(h) receiving a fax data which is due to sent to the first fax system and storing the received fax data into a fax data database.
5. The method of claim 4, further comprising:
(i) receiving a request for transmitting proxy fax data from the first fax system; and
(j) extracting a fax data corresponding to the first fax system from the fax data database in response to the request for transmitting proxy fax data from the first system and transmitting the extracted fax data to the first system.
6. The method of claim 4, further comprising:
(i) extracting and transmitting a fax data corresponding to the first fax system from the fax data database to the first fax system, when the first fax system is logged-on.
7. The method of claim 1, wherein the fax data includes fax data text and modification checking unit thereof, which is used to sense whether fax data is modified or not.
8. A computer readable recording medium for recording a program for executing the method of claim 1.
9. A method of transmitting fax data through internet, the method comprising:
(a) transmitting a transmitting fax data to a first fax system in response to a request of user; and
(b) providing the user a receiving fax data received from a second fax system, wherein the step (a) comprises:
(a1) transmitting a request for authentication of transmittingreceiving fax data to a service server;
(a2) receiving a transmittingreceiving fax data authentication information generated in response to the request for authentication; and
(a3) encrypting the transmitting fax data by using the transmittingreceiving fax data authentication information received from the service server and transmitting the encrypted transmitting fax data to the first fax system through internet, and wherein the step (b) comprises:
(b1) receiving the receiving fax data from the second fax system;
(b2) transmitting a request for authentication confirmation of a transmittingreceiving fax data to the service server;
(b3) receiving a transmittingreceiving fax data authentication information extracted in response to the request for confirmation of the transmittingreceiving fax data authentication; and
(b4) decrypting the receiving fax data by using the transmittingreceiving fax data authentication information received in the step (b3).
10. The method of claim 9, further comprising:
(c) transmitting a request for subscription to the service server;
(d) receiving a disposal result of the request for subscription from the service server
11. The method of claim 9, comprising:
(a4) transmitting an inquiry of the status of the first fax system to the service server or the first fax system before the step (a3).
12. A computer readable recording medium for recording a program for executing the method of claim 9.
13. A system of transmittingreceiving fax data through internet, comprising:
a fax system a transmitting fax data encrypted by using a first transmittingreceiving fax data authentication information, decrypting a receiving fax data by using a second transmittingreceiving fax data authentication information and providing a user with the decrypted fax data, when the receiving fax data received; and
a service server being connected to the fax system through internet, generating and transmitting the first transmittingreceiving fax data authentication information in response to a request for authentication of transmittingreceiving fax data from the fax system, and providing the fax system the second transmittingreceiving fax data authentication information in response to a request for authentication confirmation of transmittingreceiving fax data.
14. The system of transmittingreceiving fax data of claim 13, wherein the service server comprises:
a fax system subscriptionregister unit managing subscription of the fax system in response to a request for subscription of the fax system and providing the fax system with a result of subscription disposal;
a transmittingreceiving fax data authentication unit generating the first transmittingreceiving fax data authentication information in response to the request for authentication of transmittingreceiving fax data and providing the same to the fax system, and extracting parts or all of the second fax data authentication information from a transmittingreceiving fax authentication database in response to the request for confirmation of transmittingreceiving fax data authentication from the fax system and providing the same with the fax system; and
a fax transmitting proxy service unit, receiving and storing a fax data which is due to be sent to the fax system when fax transmitting proxy service from the fax system is requested, and then transmitting the same to the fax system at required time.
15. The system of transmittingreceiving fax data of claim 14, wherein the fax system comprises:
a subscriptionregister unit requesting subscription to the service server in response to a request of user and receiving a result of subscription disposal from the service server;
a transmitting fax data unit encrypting the transmitting fax data by using the first transmittingreceiving fax data authentication information received from the service server as a result of the request for transmittingreceiving fax data authentication to the service server; and
a receiving fax data unit decrypting the receiving fax data by using the second transmittingreceiving fax data authentication information received from the service server as a result of the request for confirmation of transmittingreceiving fax data authentication to the service server.
16. The method of claim 2, further comprising:
(g) receiving a request for subscription from the first fax system; and
(h) storing a subscription information of the first fax system into a subscription information database in response to the request for subscription.
17. The method of claim 2, further comprising:
(g) receiving a request for fax transmitting proxy service from the first fax system; and
(h) receiving a fax data which is due to sent to the first fax system and storing the received fax data into a fax data database.
18. The method of claim 17, further comprising:
(i) receiving a request for transmitting proxy fax data from the first fax system; and
(j) extracting a fax data corresponding to the first fax system from the fax data database in response to the request for transmitting proxy fax data from the first system and transmitting the extracted fax data to the first system.
19. The method of claim 17, further comprising:
(i) extracting and transmitting a fax data corresponding to the first fax system from the fax data database to the first fax system, when the first fax system is logged-on.
20. The method of claim 2, wherein the fax data includes fax data text and modification checking unit thereof, which is used to sense whether fax data is modified or not.
21. A computer readable recording medium for recording a program for executing the method of claim 2.
22. A computer readable recording medium for recording a program for executing the method of claim 10.