US 4,710,307 A · Pickling agent · patentgrep

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Abstract

Agent for the pickling of and as an antioxidant for workpieces made of iron and steel in the case of when they are subjected to non-cutting, hot transformation. The agent is used in dry form. The agent contains: (a) 20 to 80 percent by weight of a pickling-effective compound, such as, sodium metaborate; (b) 1 to 80 percent by weight of a component, such as, graphite; and (c) zero to 79 percent by weight of at least one substance selected from group (d), (e) and/or (f). Zero to 35 percent by weight of group (d), such as, coke, can be used as substance (c) and, for example, act as antioxidants. Zero to 50 percent by weight of group (e), such as, sodium chloride, can be used as substance (c), and control the physical characteristics. Zero to 5 percent by weight of group (f), such as, ammonium chloride, can be used as substance (c) and, for example, act on the reduction of the oxides of group (a).

Claims28

Dependent claims

Agent for the pickling of and as an antioxidant for a workpiece made of iron and/or steel which is subjected to non-cutting, hot transformation, comprising:

(a) 20 to 80 percent by weight of one or more effective pickling compounds selected from the group consisting of:
Na.sub.2 B.sub.4 O.sub.7 1OH.sub.2 O, Na.sub.2 B.sub.4 O.sub.7.5H.sub.2 O, anhydrous Na.sub.2 B.sub.4 O.sub.7, NaBO.sub.2.4H.sub.2 O, boric acid, boric acid anhydride, soluble sodium silicate having a SiO.sub.2 /Na.sub.2 O ratio of 2.5 to 3.3, and sodium metasilicate, anhydrous or having 5 to 9 molecules of water of crystallization;
(b) 1 to 75 percent by weight of one or more dry substances selected from the group consisting of:
graphite, calcium fluoride, cryolite, antimony oxide, molybdenum disulfide, boron nitride, and at least one phosphate selected from the group consisting of:
hydrated or anhydrous trisodium phosphate, hydrated or anhydrous tripotassium phosphate, sodium metaphosphate, potassium metaphosphate, polymetaphosphate, hydrated or anhydrous sodium tripolyphosphate, sodium polyphosphate, and zinc phosphate.
(c) 5 to 79 percent by weight of one or more substances selected from the class consisting of group (d), group (e) and group (f);
(d) zero to 35 percent by weight of one or more additives, which act as an antioxidant and which influence the formation of a layer, of group (d) selected from the group consisting of:
coke, powdery carbon, cellulose in the form of a powder, sawdust, starch or one of its derivatives, paraffin or a wax, a fatty acid and/or a salt thereof, colophonium or one of its derivatives, and a synthetic resin based on one or more hydrocarbons having 5 to 10 carbon atoms, a terpene resin, and an indene-coumaron resin;
(e) zero to 50 percent by weight of one or more substances, which control the physical characteristics of the agent, of group (e) selected from the group consisting of:
magnesium chloride, sodium chloride, potassium chloride, calcium chloride, sodium sulfate, sodium acetate, potassium acetate and a clay;
and
(f) zero to 5 percent by weight of one or more substances, which act on the reduction of the oxide of group (a) and act in a separating manner, of group (f) selected from the group consisting of:
ammonium chloride, urea, ammonium carbonate, a urea-formaldehyde resin and sodium carbonate, said agent being in dry form having no added liquid and being solid at room temperature.

10 more elements

Agent for the pickling of and as an antioxidant for a workpiece made of iron and/or steel which is subjected to non-cutting, hot transformation, comprising:

(a) 50 to 80 percent by weight of one or more effective pickling compounds selected from the group consisting of:
Na.sub.2 B.sub.4 O.sub.7.1OH.sub.2 O, Na.sub.2 B.sub.4 O.sub.7.5H.sub.2 O, anhydrous Na.sub.2 B.sub.4 O.sub.7, NaBO.sub.2.4H.sub.2 O, boric acid, boric acid anhydride, soluble sodium silicate having a SiO.sub.2 /Na.sub.2 O ratio of 2.5 to 3.3, and sodium metasilicate, anhydrous or having 5 to 9 molecules of water of crystallization;
(b) 1 to 50 percent by weight of one or more dry substances selected from the group consisting of:
graphite, calcium fluoride, cryolite, antimony oxide, molybdenum disulfide, boron nitride, and at least one phosphate selected from the group consisting of:
hydrated or anhydrous trisodium phosphate, hydrated or anhydrous tripotassium phosphate, sodium metaphosphate, potassium metaphosphate, polymetaphosphate, hydrated or anhydrous sodium tripolyphosphate, sodium polyphosphate, and zinc phosphate;
(c) 5 to 49 percent by weight of one or more substances selected from the class consisting of group (d), group (e) and group (f);
(d) zero to 35 percent by weight of one or more additives, which act as an antioxidant and which influence the formation of a layer, of group (d) selected from the group consisting of:
coke, powdery carbon, cellulose in the form of a powder, sawdust, starch or one of its derivatives, paraffin or a wax, a fatty acid and/or a salt thereof, colophonium or one of its derivatives, and a synthetic resin based on one or more hydrocarbons having 5 to 10 carbon atoms, a terpene resin, and an indene-coumaron resin;
(e) zero to 49 percent by weight of one or more substances, which control the physical characteristics of the agent, of group (e) selected from the group consisting of:
magnesium chloride, sodium chloride, potassium chloride, calcium chloride, sodium sulfate, sodium acetate, potassium acetate and a clay;
and
(f) zero to 5 percent by weight of one or more substances, which act on the reduction of the oxide of group (a) and act in a separating manner, of group (f) selected from the group consisting of:
ammonium chloride, urea, ammonium carbonate, a urea-formaldehyde resin and sodium carbonate, said agent being in dry form having no added liquid and being solid at room temperature.

10 more elements

Agent for the pickling of and as an antioxidant for a workpiece made of iron and/or steel which is subjected to non-cutting, hot transformation, comprising:

(a) 20 to 50 percent by weight of one or more effective pickling compounds selected from the group consisting of:
Na.sub.2 B.sub.4 O.sub.7.1OH.sub.2 O, Na.sub.2 B.sub.4 O.sub.7.5H.sub.2 O, anhydrous Na.sub.2 B.sub.4 O.sub.7, NaBO.sub.2.4H.sub.2 O, boric acid, boric acid anhydride, soluble sodium silicate having a SiO.sub.2 /Na.sub.2 O ratio of 2.5 to 3.3, and sodium metasilicate, anhydrous or having 5 to 9 molecules of water of crystallization;
(b) 50 to 80 percent by weight of one or more dry substances selected from the group consisting of:
graphite, calcium fluoride, cryolite, antimony oxide, molybdenum disulfide, boron nitride, and at least one phosphate selected from the group consisting of:
hydrated or anhydrous trisodium phosphate, hydrated or anhydrous tripotassium phosphate, sodium metaphosphate, potassium metaphosphate, polymetaphosphate, hydrated or anhydrous sodium tripolyphosphate, sodium polyphosphate, and zinc phosphate;
(c) 5 to 30 percent by weight of one or more substances selected from the class consisting of group (d), group (e) and group (f);
(d) zero to 30 percent by weight of one or more additives, which act as an antioxidant and which influence the formation of a layer, of group (d) selected from the group consisting of:
coke, powdery carbon, cellulose in the form of a powder, sawdust, starch or one of its derivatives, paraffin or a wax, a fatty acid and/or a salt thereof, colophonium or one of its derivatives, and a synthetic resin based on one or more hydrocarbons having 5 to 10 carbon atoms, a terpene resin, and an indene-coumaron resin;
(e) zero to 30 percent by weight of one or more substances, which control the physical characteristics of the agent, or group (e) selected from the group consisting of:
magnesium chloride, sodium chloride, potassium chloride, calcium chloride, sodium sulfate, sodium acetate, potassium acetate and a clay;
and
(f) zero to 5 percent by weight of one or more substances, which act on the reduction of the oxide of group (a) and act in a separating manner, of group (f) selected from the group consisting of:
ammonium chloride, urea, ammonium carbonate, a urea-formaldehyde resin and sodium carbonate, said agent being in dry form having no added liquid and being solid at room temperature.

10 more elements

Agent for the pickling of and as an antioxidant for a workpiece made of iron and/or steel which is subjected to non-cutting, hot transformation, comprising:

(a) 20 to 80 percent by weight of one or more effective pickling compounds selected from the group consisting of:
Na.sub.2 B.sub.4 O.sub.7.1OH.sub.2 O, Na.sub.2 B.sub.4 O.sub.7.5H.sub.2 O, anhydrous Na.sub.2 B.sub.4 O.sub.7, NaBO.sub.2.4H.sub.2 O, boric acid, boric acid anhydride, soluble sodium silicate having a SiO.sub.2 /Na.sub.2 O ratio of 2.5 to 3.3, and sodium metasilicate, anhydrous or having 5 to 9 molecules of water of crystallization;
(b) 1 to 20 percent by weight of one or more dry substances selected from the group consisting of:
graphite, calcium fluoride, cryolite, antimony oxide, molybdenum disulfide, boron nitride, and at least one phosphate selected from the group consisting of:
hydrated or anhydrous trisodium phosphate, hydrated or anhydrous tripotassium phosphate, sodium metaphosphate, potassium metaphosphate, polymetaphosphate, hydrated or anhydrous sodium tripolyphosphate, sodium polyphosphate, and zinc phosphate.
(c) 10 to 79 percent by weight of one or more substances selected from the class consisting of group (d), group (e) and group (f);
(d) 10 to 35 percent by weight of one or more additives, which act as an antioxidant and which influence the formation of a layer, of group (d) selected from the group consisting of:
coke, powdery carbon, cellulose in the form of a powder, sawdust, starch or one of its derivatives, paraffin or wax, a fatty acid and/or a salt thereof, colophonium or one of its derivatives, and a synthetic resin based on one or more hydrocarbons having 5 to 10 carbon atoms, a terpene resin, and an indene-coumaron resin;
(e) zero to 50 percent by weight of one or more substances, which control the physical characteristics of the agent, of group (e) selected from the group consisting of:
magnesium chloride, sodium chloride, potassium chloride, calcium chloride, sodium sulfate, sodium acetate, potassium acetate and a clay;
and
(f) zero to 5 percent by weight of one or more substances, which act on the reduction of the oxide of group (a) and act in a separating manner, of group (f) selected from the group consisting of:
ammonium chloride, urea, ammonium carbonate, a urea-formaldehyde resin and sodium carbonate, said agent being in dry form having no added liquid and being solid at room temperature.

10 more elements

Agent for the pickling of and as an antioxidant for a workpiece made of iron and/or steel which is subjected to non-cutting, hot transformation, comprising:

(a) 20 to 80 percent by weight of one or more effective pickling compounds selected from the group consisting of:
Na.sub.2 B.sub.4 O.sub.7.10H.sub.2 O, Na.sub.2 B.sub.4 O.sub.7.5H.sub.2 O, anhydrous Na.sub.2 B.sub.4 O.sub.7, NaBO.sub.2.4H.sub.2 O, boric acid, boric acid anhydride, soluble sodium silicate having a SiO.sub.2 /Na.sub.2 O ratio of 2.5 to 3.3, and sodium metasilicate, anhydrous or having 5 to 9 molecules of water of crystallation;
(b) 1 to 80 percent by weight of one or more dry substances selected from the group consisting of:
graphite, calcium fluoride, cryolite, antimony oxide, molybdenum disulfide, boron nitride, and at least one phosphate selected from the group consisting of:
hydrated or anhydrous trisodium phosphate, hydrated or anhydrous tripotassium phosphate, sodium metaphosphate, potassium metaphosphate, polymetaphosphate, hydrated or anhydrous sodium tripolyphosphate, sodium polyphosphate, and zinc phosphate.
(c) 5 to 79 percent by weight of one or more substances selected from the class consisting of group (d), group (e) and group (f);
(d) zero to 35 percent by weight of one or more additives, which act as an antioxidant and which influence the formation of a layer, of group (d) selected from the group consisting of:
coke, powdery carbon, cellulose in the form of a powder, sawdust, starch or one of its derivatives, paraffin or a wax, a fatty acid and/or a salt thereof, colophonium or one of its derivatives, and a synthetic resin based on one or more hydrocarbons having 5 to 10 carbon atoms, a terpene resin, and an indene-coumaron resin,
(e) zero to 50 percent by weight of one or more substances, which control the physical characteristics of the agent, of group (e) selected from the group consisting of:
magnesium chloride, sodium chloride, potassium chloride, calcium chloride, sodium sulfate, sodium acetate and potassium acetate, and
(f) zero to 5 percent by weight of one or more substances, which act on the reduction of the oxide of group (a) and act in a separating manner, of group (f) selected from the group consisting of:
ammonium chloride, urea, ammonium carbonate and a urea-formaldehyde resin, said agent being in dry form, having no added liquid and being solid at room temperature.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/895,384Filed 11 Aug 1986 · continuation in part
Priority: CH 3570/8423 Jul 1984
Granted: 1 Dec 1987
Term ends: Not estimatedThe source records don’t support an estimate.

Classification50 codes

C23G 5/00
Cleaning or de-greasing metallic material by other methods
C10M 103/00
Lubricating compositions characterised by the base-material being an inorganic material
C10M 103/02
Lubricating compositions characterised by the base-material being an inorganic material: carbon; Graphite
C10M 105/06
Well-defined hydrocarbons: aromatic

Family

Serial757,307Parent of this continuation-in-part · filed 22 Jul 1985
US 4,710,307 AThis patent

From the US filing history. Foreign family members aren’t listed.

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