Source: Author: Published: 2010-04-16 10:43 Hits: 494
One, raw materials: crafts resin, aluminum hydroxide, curing agent, catalyst, color paste (emerald green, lemon yellow, crimson)
1, ratio: resin: aluminum hydroxide = 1:1, colorless cobalt 0.5% (resin) Curing agent 1% (resin), according to the needs of the product plus color paste 0.05% (paste weight) (this formula to HS101-1 resin as an example). However, the amount of curing agent and catalyst is different for different manufacturers' resins. You can consult the resin supplier.
2, color paste: is based on the effect of the product design you do to determine the color with and without.
Two, batching operation: 1, the preparation work before the operation
1), before batching to check all the equipment, tools, containers are intact and complete. Keep the air in the batching room unobstructed.
2), according to the day's production plan, to receive all the raw materials to be used, in principle, the day's materials can not be more than the same day to receive, except in special circumstances.
2, the use of churning machine work:
1), to know the churning machine loading capacity is how much.
2), to ensure that the churning machine equipment in good condition, (electrical wiring is connected correctly - no damage aging, good lubrication, normal operation.
3), slurry barrels and grouting tools must be dedicated to prevent stained with miscellaneous colors.
4), according to the day of the planned production of products, according to the formula calculated resin, accelerator, aluminum hydroxide, color paste (product needs) (calculated in the plan on the amount can be increased by 10%), weighing a sufficient amount of resin poured into the churn, first take a measuring cup to measure out the amount of accelerator poured into the churn and mix well. Weigh enough aluminum hydroxide and pour it into the churn in 3 times: first pour 1/3 aluminum hydroxide and start the mixer to stir for 1~2 minutes, wait for the aluminum hydroxide and resin to be mixed evenly and then stop the machine; then pour 1/3 aluminum hydroxide and turn on the mixer, stir for 1~2 minutes to mix the aluminum hydroxide and resin evenly and then stop the machine; pour the rest of the aluminum hydroxide and turn on the mixer; in the meantime, while stirring the material, observe it with the naked eye at the same time. If there is aluminum hydroxide powder adhering to the inner wall of the mixer, the powder must be shoveled into the mixer with a spatula. The machine stirs for 20 minutes and then stops for use.
Three, grouting operations
Grouting before cleaning up the mold on the slurry and debris, a quality inspector to check whether the mold is qualified. After the mold is qualified, the operator starts grouting. In accordance with the approved standard weight of the product to beat the slurry into the water scoop in the weighing scale, according to the formula ratio to join the curing agent into the water scoop, with a spatula to mix the curing agent after pouring into the mold accounted for 2/3. Put the mold into the vacuum machine to evacuate (mold put in, close the door, close the air inlet valve, boot; to be pointer to reach -0.1mpa after holding 10 seconds that is, shut down, slowly open the air inlet valve, so that the product bubbles completely disappeared completely open the air inlet valve, when the air pressure reaches the normal after removing the mold). Mold flat on the counter, the spray out of the slurry scraped into the mold, and finally the remaining slurry poured into the mold, the requirements of the mold flat, the slurry in the scoop cleaned up, slurry flow is not in place, scrape the spatula in place, the slurry gel time of 7-8 minutes, curing does not stain the hand after 10 minutes to remove the mold; if the irrigation of the solid irregularity, grouting holes in a small product, pumping the air must be up to two times, the first time poured into the water scoop in the Half of the slurry in the mold, pumping, look at the pointer to -0.1mpa, and then extend the 4-5 seconds, shut down and deflate. Then the second time the remaining slurry poured into the mold, vacuum again, look at the pointer to -0.1mpa, and then extend the 10 seconds, shut down and deflate, the first 5-6 seconds to deflate slowly, when the bubbles completely disappeared air pressure up to the normal time to take out the mold, the slurry gel time control for 7-8 minutes, curing non-stick 10 minutes after the removal of the mold.
Four, repair, polishing operations
1, repair: the product grout out, the quality of the product for repair, repair requirements must be against the template (that is, the standard qualified products) to operate. There is a problem after repairing the alkali, no problem products directly soak alkali, alkali requirements PH = 10-11 soak time 5 minutes. Soak alkali after the completion of the product with a water jet gun rinse clean, require the product surface with PH test paper test PH value of 7.
2, polishing: the product was first sanded with 400 mesh water sandpaper, in 800 mesh to play again, and finally 2000 mesh sandpaper to smooth or with a special nylon wheel polishing machine, there are texture of the place sandpaper wrapped in sand with a fastener to play sand. Sanding with moderate force, in accordance with the same order of the product to play, the product requires no sand marks marks, smooth to the touch.
Five, color painting, packaging operations
1, strictly in accordance with standard ratios.
2, pigment requirements: do not use more than half a year of the production period of the pigment, color matching each color used in the same batch number of pigments with, and shake well after use, in order to prevent color difference.
3. Measuring tools should be used with high precision, and the used measuring tools must be washed with water.
4, color matching, the pigment is added to the color matching container in the order of from more to less.
5, in order to prevent the color difference, the most directly by the manufacturer to match the color.
6, although we can not guarantee that every batch of product color is the same, but we must ensure that the product color of an order is the same.
7, painting operations, must confirm the product samples, samples confirmed staff against the samples with a paintbrush on the product tracing the color, tracing the strength of the color must be based on the intensity of the product color of the requirements of the operation.
8, the product is painted, and then spray a layer of glossy gold oil on the product. 3 hours after the paint dries, the product can be assembled and packaged.