Excel in wear-resisting is fireproof and pouring makings is main it is main raw material by corundum, cooperate to bond and additive are made up and be become again, have more fireproof than tall aluminium pouring the mechanical intensity with more expensive stuff and fight wear away ability; This are pouring of makings fireproof degree control in 1400~1800 ℃ , its have the wear-resisting of excel in, fireproof sex, fight erode. Ability of the ooze that fight oil strong, anti-flammability is good, bibulous rate is low, service life is long, and construction effect is distinct, the most important is this material after attaint, repair trade, reason greatly managing manpower.
Fireproof and pouring expect to the attention answers in using a process the following 4 crucial link, mix namely close, pouring, conserve, roast. Among them any link occurrence problem, may bring about product function to drop or use be no longer in force.
1, mix close
Mix add up to cent to mix for machinery close and mix artificially close. All use inside the industry at present forced or mortar mixer mixes makings, do not make labour of choose and employ persons mixes close. Equipment and tool: Forced or shovel of mortar mixer, pail, platform scale, vibrating head, tool, barrow.
The water consumption that construction water consumption pledges with this batch product check sheet makes clear is a standard, carry out strictly according to the standard, accomplish accurate and metric.
Mix close: Work first after mixing wet mix. With first the order of the pouch after large bag, will come loose shape expects to in putting in mixer, work mix 1-3min, make mix close even. Mix every time the water consumption that the weight that close decides according to machinery and construction quantity; basis makings presses a regulation again is accurate weigh out mix every time add up to place to need to use water, join already mixed in adding up to even drier, sufficient agitate. Time not less than 3min, make have appropriate liquidity, just can go out makings for pouring use.
Note: The tool that place of ① construction process uses if shovel of beater, pail, tool need to clear clean beforehand, must not the other such as cement of interfuse lime, grit, silicate is sundry. ② mixes the tap water that water is being used when closing must be cleanness. Be in but below the case that vibration gives an oar, use water less as far as possible, already achieved better construction result. ③ mixes every time combine an amount not easy and overmuch, answer to be decided according to the phyletic model of mixer, can cause mixer to block sluggish otherwise, stop turn. Irrigate those who build the rest to already condensed a makings cannot add water to mix again close use.
2, irrigate build
Irrigate anchorage firmware must be checked before building makings construction whether weld, place of 500 ℃ above should use heat-resisting to catch a hammer. Anchorage firmware surface should besmear with 0.5-1mm paints thickly or be being used plastic belt laps, with the expansibility after amortize be heated, and the mould inside sundry and cleared.
Mix newly those who had closed is pouring makings should undertake quickly pouring, should be in commonly 20min less than is pouring end. Will mix those who had closed is pouring expect inside, insert in time with vibrating head brace up pound, brace up pound should even. Wait for pouring makings surface frost heave has bleb eduction, when the surface submits oar form, be in mobile vibrating head, floating rate is 1-2m/min, pull out the speed when vibrating head wants slow.
Pouring after ending not caky before, spot temperature must maintain in 10 ℃ above (10-30 ℃ ) , spot temperature under 10 ℃ , must adopt warm up accordingly heat preservation measure, can cause delay to coagulate otherwise, bring about product function to drop.
Note: After ① shakes pouring makings surface appropriate keeps natural, unfavorable wipe light with the tool, more do not allow to scatter cement fine pink to wipe light in the surface. ② vibrating head should have reserve, lest be when vibrating head occurrence breakdown, reserve the club can be enabled in time. After ③ construction ends, inside construction system 24h, especially pouring expect before sclerosis, forbidden move, shake or pound dozen, otherwise, irrigate build experience to produce crackle to be destroyed completely even. ④ is pouring expect should successive construction, because all sorts of reasons cannot apply man-hour continuously, can leave construction to seam, and stay expanding seam place, otherwise construction seams face of make it hemp, be in namely pouring delimit on makings deep 10mm, the crossed channel that wide 20mm controls, span 100mm is controlled.
3, conserve
Main use tool is polyethylene plastic film, careless bag. Environmental temperature requirement and control: Pouring the conserve temperature of body is advisable between 15-35 ℃ , exceed this temperature interval, should adopt warm up accordingly or drop in temperature measure, can cause product performance characteristics to drop otherwise.
Pouring after makings is sclerotic, need to cover construction system face with polyethylene plastic film instantly, wet careless bag is built again above, evaporate in order to prevent moisture, make cement activation. After sclerosis, prohibit beating inside a day, shake, according to sclerotic circumstance, after general and sclerotic 24-30h can drawing of patterns.
After drawing of patterns, according to needing conserve two days, continue to build polyethylene plastic film and wet careless bag when conserve. Conserve 3 in the future, uncover plastic film and careless bag. Make sclerotic system natural in air dry a day, can roast.
4, roast
Roast it is pouring expect use the last crucial segment, as a result of pouring system is more compact, because this is in roast when need to prohibit warming up absolutely fast, can cause otherwise burst apart accident.
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