1. Aluminum rod charging

It is necessary to install aluminum rods with appropriate length, correct aluminum profile material, smooth surface without grooves, and guaranteed quality (crystallization, composition, density, and no overburning) according to the production scheduling requirements and the actual situation of the mold. And pay attention to the identification and spacing of different aluminum bars. Pay attention to the loading position and chain width, and ensure that they are close to each other and not loose (blocked by angle iron, not using aluminum materials that are easily softened at high temperatures) to prevent furnace blockage. Pay attention to ensuring that the aluminum rod is not loose or dropped during transportation and loading operation to prevent personal injury and equipment accidents. Regularly check the firmness of equipment such as chains, pins, runners, and tension columns. Regularly check the actual temperature of the aluminum rod and the data of the instrument values (not exceeding 560 degrees). If the shutdown time is long, it is necessary to reduce the temperature appropriately (below 520 degrees). Regularly check the operation of the spray gun, circulating fan, cooling water (water pump), and other equipment for completeness.

2 Extruder

The operator of the extruder must pay attention to the following precautions before formal operation to ensure normal, safe, and continuous production.

（1） Check whether the equipment is functioning properly, whether all operating parts of the machine are in place, the lubrication of the sliding plate, whether the travel switch of the sensing device is activated, whether the fasteners (screws) of the aluminum profile are loose, whether the circulating cooling water is turned on, whether the oil level is sufficient, whether the oil temperature is normal, whether the oil pump has abnormal sounds, whether the working speed is normal, and whether the action conversion is normal.

（2） Check the condition of the rod furnace (refer to Article 1), check the extrusion centerline, check the heating condition of the extrusion cylinder, and check the fluctuation of the heating instrument. Operation status of traction machine, material bed, and rear equipment. Are various operators, fixtures, maintenance hardware tools (molds, pads, pressure cakes, pressure plates, clips, hammers, pliers, wrenches, drivers, screwdrivers, crowbars, insulation strips, shaping tools, etc.) fixed at the work site, and are the crane and mold heating furnace functioning properly. Are various quenching and cooling fans operating. Are various measuring tools complete and correct.

（3） Are there any unrelated personnel on site, maintenance personnel, visiting and inspecting personnel, new learning personnel, and aluminum profile technology personnel? They should be advised, inquired, reminded, prevented, explained, trained, guided, and demonstrated based on the actual situation and safety principles. Confidentiality measures should be taken when necessary for external personnel who are not accompanied by leaders. Coordinate production according to schedule, team members, and pay attention to the orderly connection between each process.

（4） Aluminum profile manufacturers understand the production content, production requirements, production sequence, and make corresponding real data records during production. The handwriting is clear and the production date is clearly marked, which can be verified, traced, referenced, and referenced. Prepare and be familiar with the drawings, forms, materials, documents, etc. for the production of profiles in advance.

Straightening of 3 aluminum profiles

（1） The aluminum profiles on the cooling bed shall not collide, pull, overlap, crowd, or entangle with each other during the process of material extraction, movement, and stretching, and a certain distance shall be reserved between them. For profiles that are prone to bending and have long or short discharge lengths, they should be treated in a timely manner, and if necessary, mutual protection measures should be taken.

（2） The stretching of profiles must be carried out on the stretching frame after the profile has cooled to below 50 degrees (which can be tightly grasped with bare hands). If the temperature is too high, stretching will not only burn the human body and damage the wool, but also cause bending, twisting, poor performance and other waste products before and after aging due to the inability to completely eliminate the internal stress of the profile.

（3） Due to the heat dissipation effect of wool strips, profiles with high decorative surface requirements must be flipped back and forth to facilitate uniform heat dissipation and reduce transverse bright spot defects caused by uneven heat dissipation and varying crystallinity. Especially for profiles with large wide surfaces and thick walls, attention should be paid to this.

（4） Pay attention to the stress situation of small feet, thin teeth, long legs, curved surfaces, inclined surfaces, openings, angles, etc. of profiles with high aspect ratio, long hanging walls, large arcs, large wall thicknesses, and strange shapes, to prevent local or point size deformation, twisting, and spiral defects of the profiles.

（5） The stretching amount should be controlled at around 1%, for example, for a 25M profile, the stretching amount should be stretched by about 25CM after straightening the profile, but it must not exceed 2%. During production, adjustments should be made based on the actual situation of profile discharge and various specific requirements (opening size, surface quality, external size, inner diameter size, wall thickness size, elongation, etc.), and contradictory technical requirements should be sought to simultaneously meet various specific requirements for stretching. Excessive stretching will lead to head, middle and tail size deviation, water ripple Fried Dough Twists (fish scale) mark on the surface, low elongation, high hardness and brittleness (low plasticity). Low tensile strength and hardness of the profile can be reduced, and even aging (quenching) cannot improve hardness. The profile is prone to curved bending (commonly known as large knife bending).

（6） To control the amount of tensile deformation and better control the size change of the entire profile, appropriate specialized clamping pads and methods should be used. Especially for open end materials, circular arc materials, cantilever materials, and curved shaped profiles, it is important to pay attention to the reasonable and effective use of stretching clamps and pads. If necessary, there should be someone in the middle of the stretching profile to control and support or plug the pad to ensure that the stretching size between the head, middle, and tail sections meets the profile requirements.

4. Aluminum profile sawing and framing

（1） The material on the conveyor frame should correspond to the material head and joint marks, and the profiles should not collide with each other. Long and short materials should be well protected from each other. The profile should be straightened back and forth, and the cutting section should not tilt. Check the wrapping condition of the frame surface wool and plastic parts more frequently, and pay attention to rubbing against sharp hard metals such as exposed iron frames.

（2） Oxidizing, spraying, sandblasting, bending, punching, materials, sawing, packaging, aging, natural materials, and other post-processing requirements require different materials of profiles to be separately framed and transported.

（3） When framing, attention should be paid to the way and method of framing, as well as necessary auxiliary tools, lining paper liners, etc. for cantilever longer profiles, wall thinner profiles, circular profiles, open profiles, solid small cross-section profiles, plates, high surface requirements profiles, interlocking profiles, self locking profiles, or profiles that are not easy to separate. The cushion strips (pads) should correspond up and down, be arranged correctly, with appropriate spacing and quantity. (Some are prone to deformation, and high surface profiles should not have cushion strips) They can withstand the weight of the profile and a certain amount of force, and cannot be pushed or stacked too much. Sections that require overhead framing must be stacked overhead.

（4） Pay attention to the position of the profiles stacked in the frame to avoid accidents such as stacking and sliding of the profiles due to the lightness of both ends. Pay attention to the sawing speed, the burrs on the sawing surface, and adjust the size of the oil spray on the sawing machine. Pay attention to the pressure of the sawing machine (stroke, weight). When sawing, attention should be paid to avoid personal injury accidents. When sawing, it is strictly prohibited to exert force on the outer sides of the profile to avoid clamping the profile during sawing, which may cause material damage and injury in an instant.

（5） Pay attention to blowing out aluminum filings, scraping off burrs, spacing appropriately, lifting safely, and aligning the stacked frames. The number of stacked frames cannot exceed the company's requirement of 4 layers.

（6） When lifting and framing materials, it is necessary to handle them with care. Small materials, thin materials, long materials, flat materials, solid small materials, and other materials that are prone to bending should be lifted by someone in the middle, and attention should be paid to doubling the length of the fixed length (sawing, oxidation clamp allowance) to see if it will cause difficulty and affect efficiency in the subsequent process (sawing, oxidation, packaging, lifting, transportation), and even prevent normal processing and production.

Timely transportation of 5 aluminum profiles

（1） When aging, try to place profiles with similar material, thickness, size, hardness requirements, and performance requirements in the same furnace for aging treatment. The aging profile should be strictly operated according to the corresponding aging process of the furnace profile, and should not be changed without authorization or perfunctory.

（2） Pay attention to the operation of the circulating fan and the circulating cooling water, closely observe the ignition and heating situation, the temperature error in the furnace, the temperature rise speed in the furnace, the insulation situation, and pay attention to the safety and sealing of the furnace door.

（3） Pay attention to oil and gas leakage, ventilation, and safety in high-temperature combustion environments.

（4） Pay attention to falling materials when lifting and unloading the material frame, and pay attention to the safe distance between the crane and the material frame and oneself.

（5） It is strictly prohibited to detain personnel inside the aging furnace. When entering the furnace for operation, corresponding protection must be taken, and adults must be observed and protected outside. Combustible and explosive materials are strictly prohibited from entering the furnace, and non productive uses such as baking, heating, sleeping, etc. are strictly prohibited.