Machine tool slideway sticks the application of filling technology

The Results Show That Compared With Other Fluoroplastics Adhesion Technique Most In Use, the Shearing Strength Is High, the Abilities Of Erosion-resistance To Machine Oil And Saponification Liquid Are Fine, and The Conglutinating Repair And Renovation Have Been Used For Quide Rails Of Lathe And Grinder With Success.

Key Words: Guide Rail Of Machine Tool; Conglutinating Repair Technique; Teflon Shearing Strength; Slideway of machine tool of Erosion-resistance 　 suffers wear away exceed certain level, will immediate impact machines precision. When the machine tool is repaired, electric machinery, gear-box, main shaft, tool carrier all can change, only slideway and lathe bed are an organic whole repeatedly, cannot change, slideway suffers wear away or the crucial link that the rehabilitate after cut is machine tool maintenance. To prolong machine tool service life, reduce equipment to run cost, developed felt domestic and internationally early or late, brush plating, thermal spraying, enchase wait for technology of rehabilitate of machine tool slideway, got certain result. But still put in a lot of inadequacy up to now, it is character like slideway material cast-iron, brush union of cladding of plating, thermal spraying to owe firm, easy flake, and cost is high; Enchase a law to apply to local indentation to repair, repair bad play to large area layer its effect; Felt law goes easily simply, with fluorine plastic board replace plate to stick filling slideway to already became the world to study heat, but at present business is mixed with binder felt board is put in wetability difference, adhesion the problem such as low, changeful form, warp. We combine a machine tool to maintain practice, discussed get together with activation fill 4 fluorine ethylene board the binder that sticks filling slideway and stick filling craft parameter, via old and actual applying, obtained favorable result. 1 test data and method 1.

　 of  of 1 test data sticks filling material to use activation fill to get together 4 fluorine ethylene board, this kind of material has exceedingly good wear-resisting, fight creep, self-lubricating, fight pressure, the function such as dimension stability. Activation fill gets together 4 fluorine ethylene board felt face activator uses sodium content of complexing of one naphthalene ion (the recipe compares 1 ∶ for sodium and naphthalene weight 5, mixture of 150g natrium naphthalene dissolve at 1L anhydrous 4 hydrogen furan, isolation moisture and air keep in storage, in case sodium explosion) , activator of cast-iron slideway surface uses iodine to change potassium, phosphoric acid aqueous solution. Binder uses the double constituent polyurethane that matchs oneself glue. 1.

2 activation fill gets together 4 fluorine ethylene board finishing 　 (1) is wiped with acetone; (2) uses sodium chromium of one naphthalene ion adds up to content to wipe 10min; (3) is washed with acetone except rudimental complexing content; (4) uses ionic water to erode hangover; (5) is blown with hair dryer dry. 1.

The finishing 　 of 3 slideway (face of 1) plane course, make wool with sand paper; (2) uses blowtorch roast except oil; (3) uses 3% phosphoric acid 3 natrium and scrub of aqueous solution of 3% vitriolic natrium remove oil; (4) uses ionic water to clean hangover; (5) uses the scrub of aqueous solution of 50% phosphoric acid that contains 50g/L iodine to change potassium, make the surface forms a kind of special ferric oxide layer; (6) uses ionic water to clean hangover; (7) uses hair dryer dry. 1.

The slideway that 4 felt handle polyurethane glue besmear at classics surface activation sticks filling place and activation fill to get together 4 fluorine ethylene board on, joint, pressurization × 104Pa of 5 × 104~10, cold curing 24~30h, go pressing, wait for tool nap working face and edge horn with drawknife. Nextpage1.

5 shear test and be able to bear or endure erode an experiment to be in afore-mentioned sticking to fill before the technology is used at the machine tool to maintain, considering machine tool slideway the long-term move back and forth between Fu Zhi chafes force forms shearing force to felt interface, felt interface suffers what lube and cutting refrigeration use saponification liquid for a long time still to immerse, undertook sample shear test is mixed above all be able to bear or endure erode an experiment. Shear test uses ASTMD1002 to build receive cut test specimen level, make cast-iron get together with activation fill test block of 4 fluorine ethylene, dimension all is 93.

5mm × 25.

4mm × 16mm, build the length that accept a scale to be 30mm. Felt sample 5, the test has on tensile test machine, computational shear strength, and with before the commonly used felt method in machine tool maintenance undertakes comparative. Be able to bear or endure erode an experiment to be medium with 20 engine oil and saponification fluid, immerse respectively cut test specimen 5, immerse time is 240h, observe the change of shear strength. 2 tests result 2.

If result of test of 1 shear strength expresses 1 to show. The result makes clear, with self-restrained polyurethane glue and this experimental method undertakes felt, fight the fluorine with commonly used other of shear strength excel plastic binder and felt method. Express 1 binder the oxygen of annulus of epoxy resin of polyurethane of type of influence MPa binder to shear strength - oxygen of phenolic aldehyde annulus - get together sulfur shear strength 1813 ～ of 15 ～ 1010 ～ of 158 ～ 122.

2 be able to bear or endure if the watch is shown 2 times,erode experimental test result. The result makes clear, after classics 240h immerses, shear strength of each felt interface all uninfluenced. Can think, this felt technology applies to condition of operating mode of machine tool slideway, have fight the dominant position with higher shear strength. Express the 2 shear strength after eroding oxygen of annulus of epoxy resin of polyurethane of MPa binder type - oxygen of phenolic aldehyde annulus - get together sulfur 20 engine oil immerse 1914 ～ of 240h16 ～ 911 ～ of 167 ～ 13 saponification fluid immerses 1712 ～ of 240h15 ～ 1210 ～ of 1310 ～ 123 application 3.

1 lathe slideway sticks filling  　 to begin from 1997, in common lathe overhaul, used activation fill to get together slideway board sticks 4 fluorine ethylene filling technology, already repaired 12 up to now, among them 8 use this technology. Particular way is: After lathe bed slideway is machined with slideway grinder, will sneak away greatly board slideway face nap. If be pulled more serious, criterion dig cuts treatment. According to the circumstance moving below 3 bar, fill of affirmatory felt activation gets together 4 fluorine ethylene the ply of slideway board, undertake felt by this experimental method. The end that such doing is to make feed box, smooth board box and 3 bar position do not produce a change, reduced overhaul man-hour and change hardware fee. Through use of a few years, with 4 lathe of rehabilitate of other felt technology, stick fill board already was out of shape, warp, be forced to demolish change, and stick 8 lathe that fill with this technology, lathe bed slideway is not had grind apparently mark and be out of shape, still using normally. 3.

2 grinder emery wheel wears slideway to pay stick filling  　 to apply lathe slideway to stick the successful rule of thumb that fill, use activation fill to get together 4 fluorine ethylene board and match polyurethane glue to undertake to grinder of an old M1432 essence of life is changed oneself transform an attempt. Its plan is, divide wheelhead department instead of bearing of primary dynamic pressure static press bearing, lathe bed and emery wheel wear slideway to pay use this sticking to fill the technology is stuck fill. Former workbench slideway has spend gently pull, after lathe bed and dig of workbench slideway essence, lathe bed slideway deserves to grind by workbench slideway. Because V slideway is 90 ° , reason is chosen 1.

5mm is thick board felt makes the same score slideway, with 1mm thick board felt V slideway, undertake sticking filling by this felt technology, long edge is blown after complete solidify grind, make moving precision achieves a requirement. Emery wheel wearing is scroll slideway formerly, wear as relative as workbench position to hold former emery wheel changeless, classics computation first stickup armor plate, filling activation fill is stuck to get together after 4 fluorine ethylene board. Transform through what pay to two slideway, eliminated appearance of crawl of workbench low speed, raised damp of emery wheel feed, increased to suck brace up ability, to raise grinder to machine precision is mixed bright and clean degree laid a foundation. Move via 3 years, did not appear unusual. 4 conclusion 4.

Craft of 1 this felt and material are reasonable and feasible, place gets together to activation fill with binder and craft 4 fluorine ethylene board and cast-iron undertake felt, fight shear strength to be able to amount to 15 ～ 18MPa, excel other is commonly used fluorine is plastic felt technology, the interface fights engine oil and saponification fluid to erode. 4.

2 stick filling material and technology to apply to lathe and grinder slideway Fu Xiu to fill, have higher economic value, hopeful popularizes application on other machine tool and mechanical equipment. CNC Milling CNC Machining