Colour steelWhat's the difference in the way you repair it? Master dessa's answer is to paint and change
Core summary
The stains of the coloured steel, the failure of the coatings and the stains of the plate cannot be treated in the same manner. The suitability for preservative coating should be judged in conjunction with the condition of the remaining plate, the connecting area, the use of environmental and grass-roots conditions, and the range of repairs or replacements should be further assessed in the event of perforation, apparent deformation or connection security concerns. The appearance is re-colored and does not mean that the plate function has been restored。
One, it's rusty. Why can you retrofit some
The editor asked: "there's a lot of rust on the floor, how does the factory know to paint or change the board?"
Zuzhou construction and repair engineering co. Ltd., which was engaged in water protection against corruption at industrial plant buildings, replied that it was not based solely on rusty area. Aging surface coatings, localized rust, holes in the sheeting have been made, reflecting different states; the damage to the screws and the docking position cannot simply be ignored by the entire floor. The site will depend on the distribution of the problem and the actual impact。
The plant can provide a complete picture of the safe location, known leak points and historical maintenance records indicating whether the house is exposed to special discharges, whether there is long-term water accumulation, and what material was previously used. Photos facilitate initial communication, but do not allow remote identification of how much carrying capacity there is, or promise to retain all。
The writer asked: "doesn't it have to change when you knock on a tool?"
Q: a simple knock is not an alternative to a professional inspection, let alone suggesting that the factory personnel climb and try to step on their own. House panels, connectors and support needs to be assessed in conjunction with site assessments. In the event of an apparent deformation, hole or connection anomaly, the entry of the operation and person concerned shall be controlled and judged by the person with the corresponding capability。
The environment, materials and successive maintenance are different for the jiangxi plant, and even when the life of the facility is near, the surface may be different. The maintenance programme corresponds to the results of the inspection of the plant and not to the choice of a unified process based solely on “a few years of use”。
Ii. Conflicting the problems to definition where to reserve and where to death
The editor asked if you'd take all the rust off first and see what's down there
Wang jian replied that inspection and work arrangements should be in place and that the house should not be extensively damaged for observation purposes. Professionals determine inspection methods and ranges based on field conditions and record coatings, plates and connections in different areas. Further checks of suspicious locations are carried out and, where necessary, testing and evaluation conducted by the respective professionals。
Field phenomena
Focus to be checked
Orientation of programme discussions
Sprayed, faded
The original coating is attached to the plate state
Availability of basic renovation
Local rusted
Corrosion range, cause and depth effects
Local handling and accompanying preservation
Sutures and solids rust
Connect status and node function
Nodal repairs and related inspections
Hole. Visible transformation
Board and connection security, impact range
Special assessment and rehabilitation or replacement
Repeatedly rusted
Grassroots treatment, environment and old systems
Rematching programmes when reasons are identified
Q: this form is not a cross-reference to the photo selection method, but rather helps the plant to ask questions. Following an on-site assessment, the programme should map different areas. Which reservations, which need to be further verified and which are to be replaced should be supported accordingly. Only one average house-wide price can easily mask regional differences。
It also depends on whether there are concentrated sources of corrosion. For example, there may be a need to process the use environment outside the coating of a device that is chronically damp around it or that is poorly drained. If the cause persists, surface renovation cannot automatically terminate the subsequent effects. Maintenance and equipment managers should jointly identify the boundary so as to avoid the continued impact of the conditions of use of one party after processing。
Iii. What can be done with embalming coatings and what can not be replaced
The editor asked if the preservative material was working well and would cover the rust and small holes directly
Wang jian replied that material performance must be performed at the appropriate level and under suitable conditions of use. Preservative coatings are primarily protective and cannot be converted into complete sheeting of damaged sheeting or replaced by coatings for structural and connecting problems that need to be addressed. How a hole is repaired or replaced will be judged and a programme formed。
Areas suitable for coating also need to be clear about grass-roots processing requirements, old layer retention conditions, supporting materials and the construction environment. New coatings should be based on what surfaces they can be attached to, whether different materials are compatible and how each process is checked. The integrity of the programme cannot be judged only by “swipe-over” or by the fact that just completed colours are even enough to conclude that long-term protection capacity has met expectations。
The editor asked: "does not you have to consider matching the paints that are expensive?"
The price is not a substitute for compatibility and applicability. To be used in accordance with relevant technical information and project programmes, specific product models, foundations and environments. The location of the exchange of preservative, waterproof or sealed materials should also be checked, and each of the products, which appear to be good, cannot be stacked at will。
The operations of the texas building and repair engineering company ltd. In suzhou include the retrofitting of paint and metal floors. In the course of the plant's consultations, protection against corruption, water protection at nodal points and the replacement of sheeting could be requested for discussion, rather than being understood as a one-time painting. This allows the procurement to see which of the proposals are material systems and which are grass-roots and nodal work。
Information on the construction process should indicate that critical processes have been implemented. Pre-separation check, recording material models and batches, and maintaining nodal photographs are easier to check than leaving only one panorama after completion. Specific testing projects and eligibility requirements should be determined in the context of programmes and applicable standards, and not ad hoc in nature。
Iv. Why can't we just charge a few plates when we need to switch
The editor asked: "is it easy to replace them with only local rust
Qiang replied that he also needed to look at the type of sheeting, the mode of connection, the connection to the perimeter, the construction below and the working conditions. The way in which the new plates were to be replaced by the original floor, the way in which the rooms were to be protected after their demolition and the impact on other equipment were all elements that needed to be arranged in advance. The purchase of replacement panels cannot be considered a full maintenance cost。
The replacement should be preceded by a clear scope for demolition, temporary protection, material specification verification, installation connection and follow-up inspection. In the case of undiscovered problems, there should be a change in the confirmation procedure to record the situation on the ground and the basis for processing. It cannot be expanded without record or ignore the damage already found in order to maintain the original offer。
The editor asked if the new plates were changed and the old ones were left out
Q: checking old and new interfaces and adjacent connections is required. The problem may be concentrated on the edges, fast-stretching or tie-ups, with separate pieces not being treated for subsequent periods, and may still leave leakage or other defects. The specific scope is determined by the field programme and cannot be mechanically applied at a fixed distance。
The plant in production also coordinates indoor protection and movement of people. Dismantling, handling and installation may affect the equipment below and the area of operation, which should be isolated and coordinated according to actual risk arrangements. The plant cannot omit the necessary operation management because of the small size of the project。
Upon completion of the delivery, the plant should be provided with replacement locations, material information, sequential processing and inspection records. Additional light-voltage, windpipes or other flooring work will be arranged in such a way that new and old areas and care will be known and subsequent operations will be avoided to disrupt the rehabilitated areas。
The editor asked: how can the plant retain the two options of refurbishment and local changeboard
Q: for the two programmes, the same map is used to map the reserved areas, the processing areas, the areas to be replaced and the areas that cannot be judged. The basis of investigation, construction conditions, inspection methods and subsequent maintenance requirements for each area are then checked. This compares the two arrangements to which the issues are addressed rather than grouping a full package with a purely superficial offer。
Areas that could not be identified for the time being could first be identified by indicating what additional inspections were needed and how the results might affect their scope. The unknown area should not be treated as being in good condition in order to arrive at the total price as soon as possible, nor should it be judged in its entirety as needing replacement without justification. The manufacturer should know which amounts of the offer have been confirmed, which rely on further investigation and agree on the modalities for subsequent confirmation。
Following completion of the new coatings, which covered traces of primary erosion, the original survey photographs should remain. Corresponding pre-construction locations, processing processes and delivery results will make it easier to identify the causes of subsequent changes. Should the plant be followed by changes in production emissions, additional equipment or adjustments to drainage, the maintenance staff should also be aware of these changes and should not follow only the original environmental judgement。
Faq: without leaking the surface of the three problems of corruption-resistant refurbishment and changeboarding, can rust be left out for the time being
A: the leak is just an observation indicator. Corrosion may affect the protective layer, sheeting or connection and the need for treatment should be combined with the state of the site. Pre-screening and prioritization are easier to plan than waiting for indoor dripping。
Can you handle only rust from the ground
Q: the ground view may have missed the seams, the back water, or the place where the equipment was blocked. The survey should cover the relevant area according to professional arrangements and should not consider the location available as a complete problem. The records should also indicate which areas have not been inspected due to conditions。
Will it be possible, after preservation, to promise not to be rusty by the time of unification
Quality assurance coverage and duration should correspond to specific materials, infrastructure, environment, construction and maintenance conditions and be put into effect to the contract. Prolonged information in the material description cannot be directly translated into engineering assurance for each plant. The plant should be aware of the content of the warranty, the manner of inspection and the responsibility for subsequent maintenance。
Conclusion: decision on treatment based on residual functions
The paint-wall maintenance cannot be based solely on rust or on a comparison of the painting price per square metre. Reconciling coatings, plates, connections and the environment separately, the areas suitable for retention are programmed and areas requiring further assessment are identified and repaired or replaced. To match the volume of each project to the actual problems, the plant will understand what is being addressed and will be more easily followed up on receipt and maintenance。
