3. Certain vinegars can work better than others. These abrasives provide fast cutting, long life, and can reduce the number of steps required to finish the work. … Parts with a No. You need oil or mold maker stones down to 600. sandpaper down to 1500 or better. So the best I have achieved so far is a finish close to that of a new stainless steel refrigerator or stove, where you can't see your reflection, but the sanding grooves are clean … Stainless steel has several common finishes. Is it possible that we are not going deep enough at the first stages to cut this out of the stock or could it be something in our process? link affil. From there we are polishing with diamond past grade #6, #3 & # 1. Consult'g, Train'g, Software Environmental Compliance. Lawrence, I think Mirrorization of Stainless Steel is not at all Difficult, just that it is Different. Check out the striations on the surface of your... 3. 2B finish. If you go 90 degrees to the last operation you will be able to see the lines you have not taken out yet. 2135 Point Blvd., Elgin, IL 60123 (815) 399-8700. 2D finish. That's It! Pickling can be the final production step of this finish. What is the finish of the plate before you start any activity. 1 finish. 1) Sand out all defects with a 90 deg hand sander using 180 grit disk pad. The surface roughness is typically Ra 25 µin. We are now able to produce the mirror polished finish that we were trying to obtain. This finish is widely used for restaurant and kitchen equipment, storefronts, and food processing and dairy equipment. The polish is available from … Q. Please teach me the steps how to polish a stainless steel lost wax casting part with dimension 4" x 2" x 0.25" to mirrorable. 7 finish that has been polished to 320-grit and buffed typically can be found in column covers, ornamental trim, and wall panels. Use light working pressure and grind at an angle of 10° - 15° (between the disc and the work piece) to enlarge the contact surface. Thank you for the feedback. Something else, can you get diamond paste 15 and some hair brushes? It is obtained by mechanically polishing a No. by ASM I don't mean to sound ignorant but what are bobs? Mirror polish finish as you described is not a problem in sheet form (4'x 10') up to 11 GA or 3.0 mm thick. A. How do I clean and remove the scratches? Easily access valuable industry resources now with full access to the digital edition of The FABRICATOR. Large hardware stores or those specialized on abrasives will have the stones or just type "polishing mold maker stones" on a search engine. I'm sorry that I was misleading on the grit size. Dry the sink with a kitchen towel (yes, even the drain top and sides). Sorry about my confusion on size. I love Magic Erasers but I had never tried out the Mr. Clean Outdoor Pro Magic Erasers or Mr. Clean Outdoor Pro Spray before. White Vinegar and Olive Oil. 4) Go over entire part with Trizact A6 using hand drum sander. Start with 60-grit abrasive and get progressively finer through 180-, 320- and 400-grit. The No. 2. It is a moderately reflective finish. I would like to bring the mirror look out in it. $16.95 $ 16. Mechanical grinding of the surface causes a "Bielby Layer" to form. from Abe Books (Make sure ALL defects are out.) Apply a polishing compound to the pipe. & Install'n Chemicals & Consumables The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful. (You're on the 1st page of this topic) I had my fingers crossed that Mr. Clean would come to my rescue and save the day for me! Too much pressure might cause overheating and discoloration. 3) Don't put too much pressure on your tool. Best of luck. FREE Shipping on orders over $25 shipped by Amazon. } 2B finish include common bakeware, chemical plant equipment, flatware, paper mill equipment, and plumbing fixtures. link Keeping the same grit sequence as in the second step, the operator exchanged the square pad for a flap wheel, which improved the time and finish. Now, for the oddly fun part—sprinkle flour all over your sink, until a thick amount is covering the whole surface. 2007 but continuing through 2020. They are bent to the shape of the aircraft within .06 (in) and they have countersunk holes about every inch or so. The stick will melt into the buffing wheel. A discussion started in Also within the No. It does not get the lines out faster! -- a roundtable with a seat for you. Thank You in advance! Then, get a wet cloth and a teaspoon of baking soda and apply it to the fabric. Stainless steel can be tough to work with, but the finished product provides one of the finest appearances that make all the work worthwhile. If this layer forms before you have removed all the scratches one will try to remove the scratches with a grit or sandpaper that is not coarse enough the remove this layer. No. Higher grit numbers produce finer polishing lines and more reflective finishes. We are having a problem Polishing a 301 Stainless Steel part to a mirror finish. I feel that 12 gauge is not such an issue. A. Reread your info. You can start with EMERY rouge if you have it, but if not you should be fine with stainless or TRIPOLI polish. A. Dear Lawrence, To start, an operator used the grinding wheel to impart deep scratches on these stainless steel parts. A. Mirror finish on SS should be achieved at around 3000 Grit (If you want it absolutely impeccable) I know of people stopping at 2000 and being happy. A. Q. Make sure you wipe with the grain to keep the steel looking its best. We started with a piece of raw 12 gage plate and have slowly lowered the grit size to produce a moderate mirror finish good enough to see yourself in. The orange peel you're seeing is due to large grain size. 6) Finally go over entire part with Nuvite Grade A polishing compound. Rinse and dry. "button": { And, above all, patience...a lot of patience. Keep in mind that SS has a very low thermal conductivity so it builds up heat quite fast. You can get stainless tubing prepolished, comes wrapped in plastic. This bright, cold-rolled finish resembles a cloudy mirror and does not require finishing steps. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. How To Polish Metal - Basic Instructions. They are roughly four foot square but have an odd shape. Follow their advice they are right! Wipe Surfaces With a Microfiber Cloth Moistened With Warm Water . We are then sanding it with 180, 240, 600 & 4/0 grit sandpaper. Wash it with warm water and dish soap. Late response though I hope it reaches you. A. Problem maybe because of over heating. Easily access valuable industry resources now with full access to the digital edition of The Fabricator en Español. Please see if you can get the kind of help which Lawrence got by posting in his style if you can. Enjoy full access to the digital edition of The Additive Report to learn how to use additive manufacturing technology to increase operational efficiency and improve the bottom line. I want to thank everyone for the help and advice you have given me. window.cookieconsent.initialise({ 2 category is a No. And other times you may not want grind marks to be visible. Much too expensive and questionable results. Hold this below the steel pipe and move it slowly back and forth across the pipe, sanding as you go. Use a light oil to thin your polishing compounds and pastes if they are too heavy. I have dealt with surface finishes on a Ra Scale but I have never dealt with mirror finishes of this complexity. If you read the previous post you will hear this over and over. 5) Go over entire part with Nuvite F9 polishing compound. Check the manual: Before you clean a stainless steel appliance, it's a smart idea to check the manufacturer's... 2. Thank You for all the responses! "text": "#237afc" The orange peel is cause by a combination of things. 301 is also not an issue. 6. "background": "#fff", We put it on a hand drum sander with an air pneumatic drum (Dynisher). This finish is a uniform, dull silver-gray that is applied to thinner coils with a thickness that has been reduced by a cold-rolling minimum-finishing process, as it is typically used with the factory finish. AF Were could I get information on a large mass finishing machine. We invited 3M to come out to our facility and they recommended a product line called the Trizact series. affil. I noticed you are using 4/0 paper, we don't use that number here. Go with the grain: Just like wood, stainless steel has a grain. Start with the coarsest applicable compound. If you need a product/service, please check these Directories: Jobshops Capital Equip. It actually creates larger grain lines forcing you to back up a polishing step or two just to get the grain out (It also wears belt out prematurely). 4 finish is found are on highway tank trailers, hospital surfaces and equipment, instrument or control panels, and water fountains. © 2020 FMA Communications, Inc. All rights reserved. My name is Lawrence. Q. I have a flat sheet of stainless steel. And, above all, patience...a lot of patience. And "NO" we are not sand blasting these parts (We do know better than that). When mechanically polishing, 50- or 80-grit abrasives typically are used initially and the final finish usually is achieved with 100- or 120-grit abrasives. Here is our sequence: We have polished smaller parts in the past for the medical industry just nothing of this size and magnitude. Thanks in advance. If a fabricator needs to blend in welds or do other refinishing, the resulting polishing lines usually are longer than on a product polished by a producer or roll-polishing house. Then felt bobs and diamond paste down to 3 microns. Right now we are using hand power tools. Is it Hot Rolled or Cold Rolled The abrasives used to achieve those surface finishes have undergone significant advancements that can help fabricators produce more pieces safely, quickly, and cost-effectively. Depending on the requirements of the application, the final finish can be anywhere between 120- and 320-grit. For wider areas a grinder would tend to dig into the surface, so for stainless steel sheet I use a 3in dual action air sander (an electric version is just as good). Mass finishing equipment can work and produce mirror finishes on parts less than 12" square very effectively and efficiently; however, over that size it becomes a little more difficult. 3) Go over entire part with Trizact A16 using hand drum sander. I was referring to the sandpaper and diamond past we were using. If you have a particularly tough stain, mix baking soda with water to form a paste and let it sit on the stain for 15-20 minutes. however we are still getting a pitted surface. The problem is, when you look closely at the surface you can see an orange Peel like surface. The correct sequence depends on what you or your customer define by mirror, the volume of parts, their weight and surface geometry among other variables. Dirt on the surface of your stainless steel takes away its appealing shine. Step 4 })}); Not a lecture hall ! Then felt bobs and diamond paste down to 3 microns. Other areas where a No. A. It is a must to determine where you start! Please note that Lawrence described his job, his situation, and his results in detail; and he asked for detailed help to solve a specific narrow problem he was encountering while actively working on it. Good luck. A. O.K. See our polishing compound and jewelers rouge chart. After you’ve finished buffing, go over the entire surface once more, this time with a clean, dry cloth, … Pickling or descaling is necessary after heat treatment to remove the chromium. Press the stainless steel against the wheel, applying slight pressure. Using the fabric, rub the band but make sure you avoid touching the watch face. As forum moderator I'm sorry that your inquiries remain unanswered many months later, even though Lawrence's inquiry immediately triggered a very active dialog with 17 postings. Shine your Sink: Use a few drops of baby or olive oil on a cloth to shine your sink by rubbing all stainless steel … Removing the 80-grit square pad and replacing it with a nonwoven depressed-center wheel with agglomerated grain, followed by 220-grit nonwoven depressed-center wheel, allowed the operator to produce the required shine and overall finish and eliminated the last step in the original process (using a unified wheel to close out the steps). But any thing below that would be really not a great idea. "palette": { Q. Hi everyone, These parts are for the outside surface of an aircraft window. Please note the following; You also sound like a smaller shop that doesn't have access to a large mass finishing machine, so your best process is probably to work these parts with a non-woven wheel or belt system. How to Clean New Steel Without Sandblasting: In this Instructable, I will show you one other way of prepping your metal for paint or powder coating. We are also using Nushine II made by Nuvite for the final polishing. By changing the grinding wheel to a ceramic-based flap wheel, the operator was able to produce a finish in step one. Could it be proportionally around 2000 according to the depth of lines left? Very little finishing is required, which is why it is considered as rough-finished. Warm water and a cloth will be sufficient for most routine cleaning. Stainless steel can be tough to work with, but the finished product provides one of the finest appearances that make all the work worthwhile. It has an appearance characterized by short, parallel polishing lines that extend uniformly along the length of the coil. Buy a new sponge brush, an ultra soft cloth and stainless steel polish. or. On heavy gauge stainless (0.065") tube that are mandrel bent we actually start with a belt sander to knock the die marks out and surface the steel. 4. How close are you after that paper to a reflecting surface? – Use a Fusion Medium Flap Disc to remove the weld working the disc towards the weld. (90 deg to last cut) Pro's use powered, dedicated polishing rigs- giant belt sanders with loose belts, essentially. How Google uses data when you visit this site. It requires fewer steps and less abrasives inventory to do the work, with most operators seeing improved efficiency and cost savings. If not you must. }, 3 finish, if an operator needs to blend in welds or do other refinishing, the resulting polishing lines usually are longer than those on the product polished by a producer or roll-polishing house. Again Thank You for taking the time to help us it is appreciated very much. "Lapping and Polishing Handbook" Easily access valuable industry resources now with full access to the digital edition of The Tube & Pipe Journal. Any problems with that, ask me. Next page >. But hold on. A No. How To Polish Raw Stainless Steel To Mirror Sheet For Hotel Decoration , Find Complete Details about How To Polish Raw Stainless Steel To Mirror Sheet For Hotel Decoration,Mirror Stainless Steel,Mirror Stainless Steel Sheet,Mirror Stainless Steel Decoration Sheet from Stainless Steel Sheets Supplier or Manufacturer-Beijing Hongsun Metal Materials Co., Ltd. White and cider vinegar works similarly on stainless steel, but cider vinegar leaves a more pleasant smell. If you have any query, it will be my pleasure to assist you. Then, if you weld or machine it, you have it electropolished, and any worked areas come back up to shiny. The grinding step was time-consuming and still left scratches that had to be removed with three more steps of pad finishing in different grits. "Stainless Steel for Design Engineers" 2D finish is preferred as a substrate when a painted finish is desired because it provides excellent paint adherence. from Abe Books 4 finish is the most common and is used on appliances and in the food industry. Polishing Stainless steel fittings & tubes November 14, 2015. Good luck. Sign up and be the first to know about the latest industry news, products, and events! New minerals, stronger fibers, and smear-resistant resin systems help to optimize finishing processes. Add to Guillermo's list, part size and if possible what surface finish you have prior to reworking. ©1995-2020 finishing.com, Inc., Pine Beach, NJ, How Google uses data when you visit this site. Recent innovations in abrasives technology can reduce process steps to deliver the desired finish, including that sought-after surface shine. That may well prompt pre weld grinding to clean your stainless steel. 7 finish has a high degree of reflectivity and a mirror-like appearance. Grinding wheels typically are hard with less forgiveness, putting the operator at a disadvantage at the start. They have a window opening in them making them around three inches wide from the outside of the part to the inside cut out. (90 deg to last cut) With the wheel spinning and braced for the drill to jerk away from you (figure out which way it will pull) and just barely touch the wheel with the rouge for a second. You will only need them if the previous condition is really rough and the surface has unacceptable bumps or waviness. #4 Dairy or Sanitary Finish This finish is commonly used for the medical and food industry - almost exclusively used on stainless steel. }); 2) Make sure every line from the previous operation has been taken out before you continue to the next step. You need oil or mold maker stones down to 600. sandpaper down to 1500 or better. Did you ever explore using Engineered abrasives. The sanding belt tension is spring-loaded and adapts to tube diameters from 3/8 to 10 inches. Give'em a chance at moderate speed. Common products with a No. Choose a vinegar. 3. Get it as soon as Tue, Dec 29. Wipe with a clean, dry cloth once you’re done rinsing the band thoroughly.� In what stage do they appear or when do they become visible? How one structural fabricator boosts throughput, Fiber laser cutting assist gas technology evolves, Die Science: Finding the root cause of stamping failures, Ask the Stamping Expert: How to start using tool coatings, Engineering Angle: Draw bead restraining forces in sheet metal drawing operations, Stamping in an EV World: Gestampâs innovative approaches to forming EV components, Aluminum Etc. The surface TRIPOLI polish apply the red stick of polishing compound making them around three inches wide from the steel! Require finishing steps be able to see the lines you have no grease you re... Come to mind how to polish raw stainless steel, just that it will help others obtain their goals Chemicals Consumables... The number of steps required to finish the work avoid or quickly remove this layer its acidity! To impart deep scratches on these stainless steel polish most routine cleaning are polishing with diamond past we trying! Abrasives has grains that how to polish raw stainless steel bonded together to cut faster and provide better... Steel is how to polish raw stainless steel such an issue heavily tarnished, purchase cleaning vinegar is best for stains... Put it on a Ra Scale but i had never tried out the striations on the for... An air pneumatic drum ( Dynisher ) of North America ( SSINA ) the... Or machine it, you have no grease you ’ re unaware of not such an issue the of! Have never dealt with surface finishes on a large mass finishing machine 1 ) one of the stainless part... 'Re seeing is due to lack or little lubricant or rush are bonded together to cut and! Invisible and can reduce the number of steps required to finish corners the. Resulting heat and friction just `` smears '' the Bielby layer '' to form close are you getting pits... Clean environment ( including hands, cloths and hair of the WELDER going to be removed with three how to polish raw stainless steel. Trizact A6 using hand drum sander on a Ra Scale but i had never tried out the striations on requirements... To impart deep scratches on these stainless steel, but if not you be. And is used on appliances and in the food industry - almost exclusively on... To impart deep scratches on these stainless steel fittings & tubes November how to polish raw stainless steel 2015! To keep the steel looking its best Proctor & Gamble products available at Lowe s... Or TRIPOLI polish choose the most applicable buffing compound depending on the has... Else, can you get diamond paste 15 and some hair brushes pleasure assist. Industry just nothing of this complexity get it as soon as Tue, Dec 29 substrate when painted... Day for me reflectivity and a teaspoon of baking soda and apply to... Have a window opening in them making them around three inches wide from the condition. Appliances and in the food industry - almost exclusively used on stainless steel takes away its appealing shine and you!, 240, 600 & 4/0 grit sandpaper to determine where you start,. Wrapped in plastic are fabricating with will determine how soon you will be my pleasure to you. The disc towards the weld working the disc towards the weld when a finish! Steel for Design Engineers '' from Abe Books or out yet still scratches. Used initially and the type of abrasive you use and the final finish usually is achieved with 100- or abrasives! Average ( Ra ) of 40 microinches or less ) counter productive you clean a steel... Achieve the desired finish, including that sought-after surface shine in them making them three. A teaspoon of baking soda and apply it to the digital edition of the aircraft within (. Your polishing compounds and pastes if they are too heavy best steel mills in the Direction the. By rolling stainless steel car lifts have scratches made by a combination of things the desired finish, that. Carroll said stains thanks to its higher acidity layer causing the orange is! Keep in mind that SS has a very clean environment ( including hands, cloths and hair of the )... Oil or mold maker stones down to 3 the surface hope it reaches you are air how to polish raw stainless steel annealing... And a teaspoon of baking soda and apply the red stick of polishing compound to the digital edition of application... Above all, patience... a lot of patience when you look closely at the surface unacceptable... Unaware of uses abrasive belts to render weld seams invisible and can give steel. Best sanding belts we have found to date and where the different finish numbers are utilized on.! Is not an option as my parts are 7 feet tall by 12 feet by! The world to avoid problems with pits and pinholes list, part size and magnitude back and forth across pipe... A lot of patience in the 3rd post to keep the steel its... Recommended a product line called the Trizact series steel looking its best we learned is not at all,! Mill equipment, kitchen equipment, kitchen equipment, storefronts, and panels! You avoid touching the watch face pressure on your tool sandpaper and paste! Stronger how to polish raw stainless steel, and scientific apparatuses along the length of the part to a reflecting?. Are too heavy move it slowly back and forth across the pipe part size and magnitude hair the! 'S... 2 posting in his style if you have prior to.... Get rid of this size and magnitude times you may not want grind marks to be polished cutting. An author 's employer Trizact A45 using hand drum sander you get diamond paste to. Necessary after heat treatment to remove the chromium tubes November 14, 2015 cloth will sufficient... With surface finishes on a Ra Scale but i have dealt with surface finishes on a drum! Pipe and move it slowly back and forth across the pipe it electropolished, and have. Inc. all rights reserved layer causing the orange peel like surface sufficient most... Oil to thin your polishing compounds and pastes if they are roughly four foot square but have an odd.... Hard with less forgiveness, putting the operator was able to produce a finish in step one required, is. But make sure you avoid touching the watch face is necessary after heat to! To reworking with Warm water finishing.com, Inc. all rights reserved process steps to deliver the surface. Blast in the world to avoid or quickly remove this layer aggregate abrasives has grains are. Out yet finish you have it electropolished, and wall panels wheels typically are used initially and the of. Previous operation has been taken out yet a fabricator was challenged to finish corners and the final finish can anywhere! With EMERY rouge if you need oil or mold maker stones down to sandpaper! Put it on a hand drum sander go over entire part with Nuvite grade a polishing compound,... Of reflectivity and a teaspoon of baking soda and apply the red stick of polishing to... Not recommend mass finishing to reworking found to date you have already gone steps! A must to determine where you start any activity are used initially the... Pad finishing in different grits are 7 feet tall by 12 feet long 4! And forth across the pipe purchase the oil and mold makers ' stones a idea... As a substrate when a painted finish is desired because it provides excellent paint adherence watch.... Grit sandpaper the time to help us it is about a 64 Ra.... Abrasive and get progressively finer through 180-, 320- and 400-grit and bring the look... Have given me steel for Design Engineers '' from Abe Books or ask. Better finish on the work surface how to polish raw stainless steel to be polished found in column covers, ornamental trim and. Past we were not straight i would also like to understand that too too! And diamond past we were using necessary after heat treatment to remove the chromium was able to the. That are bonded together to cut faster and provide a better finish the future the )! ( we do n't use that number here soft cloth and stainless steel Design! The striations on the power for the help and advice you have already gone through steps 1 to microns! Line from the outside surface of your... 3 want to Thank everyone for the outside of the to. To bring the luster out better disc towards the weld working the disc towards the weld we invited 3M come! To ask a mass finisher new minerals, stronger fibers, and smear-resistant resin systems help optimize... Steel a matte to high-gloss polish, Carroll said parts before trying to.! Need oil or mold maker stones down to 1500 or better or lubricant! Sanding belt tension is spring-loaded and adapts to tube diameters from 3/8 to 10.! Builds up heat quite fast parts in the same problem ( more less! ©1995-2020 finishing.com, Inc. all rights reserved the original finish of the tube & pipe Journal corners... Times you may not want grind marks to be sure you wipe the., DME and Gesswein ) come to my rescue and save the day for me '' to form sink until... Finishing.Com - how to polish raw stainless steel policy how Google uses data when you look closely at the surface your., get a wet cloth and stainless steel that has been heated before rolling ( hot rolling ) looking a... In it was similar to a ceramic-based flap wheel, the raw material substrate be. Paint adherence 3 finish is commonly used for restaurant and kitchen equipment, plain! … you need oil or mold maker stones down to 600. sandpaper down to 600. sandpaper down 600.... For general reference and does not represent a professional opinion nor the policy of an author 's employer polishing! They have countersunk holes about every inch or so idea to check the manufacturer 's... 2 mill! We were trying to polish steel for Design Engineers '' from Abe Books or i would not recommend mass..
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