1 Time agreement: General 2 bedroom 100 square meters room, simple decoration, the duration is about 35 days, decoration company for insurance, generally will be scheduled to 45-50 days, if you are anxious to stay, you can sign and design Discuss the terms.
2 Payment method: General decoration contract, agreed down payment 60%, woodworking acceptance after paying 35%, pay 5% after completion. If you follow this form of payment, you will already pay about 95% of the cost to the decoration company after the construction period is over half. If there is any problem in the later stages of the renovation, it will be difficult to constrain the decoration company. . Therefore, it is recommended that when signing a contract, the down payment can be reduced to 30%, and 30% in the middle period.
Medium-term payment: The medium-term payment time agreed on the general contract is simply marked with "more than half of the project, carpentry closes." However, a construction site is often a multi-project crossover operation. More than half of the regular construction period should be: the end of wood production; kitchen walls, floor tiles, ceilings; the end of the wall leveling;
3 Increase and decrease items: During the decoration process, it is easy to increase or decrease the number of items, such as making more cabinets, changing several meters of water circuits, etc. These must be paid at the time of completion. What should be the unit price of these items? If you wait until you have started work, then this may be the design of the finale. Therefore, if possible, it would be best to make a copy of a complete quotation from the decoration company that was initially shown to you so as not to change the price of the decoration company when signing a contract or increasing or decreasing a project.
It is also important to note that when you finalize the fees, the increase or decrease you should pay should be signed and approved by you before construction of the project. If you did not sign the agreement, you can not pay the corresponding fees.
4 Warranty Clause: The entire process of renovation is mainly based on manual on-site production, but it has not been fully industrialized, so it is inevitable that there will be a variety of fine-quality problems. During the warranty period, the responsibility of the decoration company should be particularly important. For example, if there is a problem, the decoration company is responsible for the entire warranty, whether it is only the contractor, is not responsible for the material warranty, or there are other restrictions, which must be clearly written in the contract.
5 Hydropower costs: During the renovation process, on-site construction will use water, electricity and gas. Generally speaking, at the end of the project, the utility bills add up to a number that is not a small sum. The cost should be paid by anyone and should be indicated in the contract.
6 Construction according to the plan: In strict accordance with the drawings that you have signed and approved, you may request rework if the detail size is not consistent with your design drawings.
7 Time and frequency of supervision and quality inspection on-site: General decoration companies distribute the project to each construction team. Quality inspection personnel and supervision are the most important supervision methods for decoration companies. Their time interval for on-site visits to the project The quality is particularly important. Supervisors and quality inspections should arrive once every 2 days. The design should also be presented 3-5 days at a time to see if the on-site construction results are in line with your own design.
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Plate rolling is a process of continuous three-point bending of sheet metal using a plate rolling machine. The equipment puts the sheet material between the upper and lower work rolls when rolling. The upper roller is raised and lowered vertically, and the two lower rollers rotate and move horizontally relative to the axis of the upper roller. When the upper roll descends, the plate is plastically deformed and bent between the upper and lower work rolls. The continuous rotation of the bottom roller drives the steel plate to advance and retreat through the friction between the plate and the roller to complete the coiling.
1. Pre-bending. When the plate is rolled, there is a length at both ends of the plate that does not bend because it does not touch the upper roller. It is called the remaining straight edge. In the process, the minimum force arm at which the plate starts to bend is called the theoretical remaining straight edge. The bending form (symmetrical bending, asymmetrical bending) is related.
2. Centering. The purpose of centering is to make the generatrix of the workpiece parallel to the roller axis to prevent skew.
3. Roll round. Rolling is the main process of product forming, which is divided into two types: one-time feed and multiple feeds. Multiple feeds are commonly used for rolling thick plates. The number of feeds depends on the technological constraints (such as the maximum allowable deformation during cold rolling) and equipment constraints (such as non-slip conditions and power conditions). When the rebound of the cold coil is significant, a certain amount of overcoiling must be added.
4. Straightening round. The purpose of rounding is to make the curvature of the entire circle as uniform as possible to ensure product quality. The general rounding process is divided into three steps:
(1) Load: According to experience or calculation, adjust the work roll to the position of the required maximum correction curvature.
(2) Rounding: Roll the roller 1 to 2 turns under the corrected curvature to make the entire curling rate uniform.
(3) Unloading: gradually unload the load, so that the workpiece is rolled several times under the gradually reduced correction load.
Rolling Machine,Three-Roller Bending Machine,Four-Roller Bending Machine,Roll Forming Machine
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