The element with loose stainless steel reachs a processing technique

The element with the loose raw material in analysing stainless steel to forging reachs a processing technique
No matter be flat ingot or garden ingot,stainless steel forgings occurrence stoma of aborning classics regular meeting and loose defect doubt, air hole and loose be like twin sister, often accompany make a living, treatment giving aluminium brings a lot of troubles. Stainless steel forgings hole of circle of the existence in the organization calls air hole. It is metallic liquid is mixed in cooling period condense in the process, the gas of separate out puts the bleb defect that in staying in ingot casting, makes. Loose be forging in stainless steel the organization is in clotted process, because stainless steel is mixed in liquid state,condense in the process of voice, bulk is in shorten cannot get be made up for wonderfully and produce a lax hole. The main factor that air hole makes: The gas of the fuse-element in dissolve is in saturated condition, content of a lot of metalloid slag inclusion exists in dissolve body, rate of the rise in the process that gas is forginging is slow, criterion bleb can stay in ingot casting to produce air hole.
In analyse loose element to have a few kinds of states:
1. fuse-element overheat. 2. Content of the gas in fuse-element is exorbitant. 3 forging temperature is too low. 4. Ling however intensity is small. Forging rate is too rapid. 5. Funnel is offerred stream inhomogenous. 6. Drying-out is not complete. Hour stopping furnace is too long. 7. The thing reachs pithy gas. Solvent wet or not complete. 8. Tall magnesium alloy is enclothed had owed.
Stainless steel forgings air hole and loose it is one of weakness that see more most, stainless steel fusion and forging technology (technical regulations) generation; It is to surround air hole and protocol of loose defect place come out. If why handle air hole and loose defect question?
Adopt a few measure:
1. is to hold control chemical composition matter content (cut down metalloid field trash) 2. It is solid makings casts instead liquid makings to be cast (shorten fusion hour) 3. It is to strengthen pithy remove gas 4. It is will original ingot of big garden of instead of standard of little garden ingot (fall below forging speed, alter excessive belt measure) achievement avoids to lose.
Stomatic generation element:
1. forge heavies repair probably in long. After stopping furnace for a long time as dry as a chip not complete. 2. Raw material is wet. Have smeary. Water portion. 3. Lube quality has been owed. 4. Fuse-element is in furnace overheat. 5. Thing end is completely as dry as a chip. 6. Moisture burning gas is too big. 7. The hour of fusion is too long.
Loose normally cent is two kinds: One kind is to shorten of a generation loose, one kind is gas of body of dissolve of end take out those who form is loose. Make the measure of excessive belt when the aeriform content of main factor and fuse-element and ingot casting figuration loosely. Appearance and construction are concerned.
Look from afore-mentioned case, although the thing already formered former times full more than 30 years, but about us aluminium is machined dug and begin supply very rare data and study.
Brief summary:
1. strengthens the drill of composition impurity to accuse, useful the increase that reduces content of metalloid slag inclusion. 2. Choose a liquid to offer makings, narrowed the metal keeps hour in dissolve furnace, make the gas inside dissolve furnace gets release and splitting up below unsaturated effect. 3. Stainless steel forgings temperature chooses upper limit. 4. Drop forging speed alters fluid acupuncture point transfers the belt is tectonic, let the rest gas have contented rise space. 5. Of travel remove gas usefully pithy. 6. The protocol of founding technology technology is not invariable, below special situation, make a decision is chosen beforehand case, produce the show effect that tastes quality defect in case.

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